Specifications on Shipping Containers:
Details on the measurements of the inside and outside of Standard ISO Steel Shipping Containers.
The Following Information is from a PDF on a website:
20’DD GROUP STANDARD TECHNICAL SPECIFICATION
FOR
20′ X 8′ X 8’6″ ISO 1CC TYPE STEEL DRY CARGO CONTAINER
WITH
ALL SPA-H
1 PAIR OF FORKLIFT POCKET CORRUGATED ROOF CORRUGATED DOOR
PLYWOOD FLOOR 2 VENTILATORS
DOORS ON BOTH END
FOR
GROUP STANDARD
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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SCOPE
This specification covers the design, construction, materials, testing, inspection and performance requirements for ISO, 1CC type steel dry cargo containers manufactured by factory.
The containers specified herein are manufactured under the quality control of FACTORY within the perimeters as such set forth by the Classification Societies.
CONTENTS
- GENERAL—————————————————————————————-3-4
- DIMENSIONS AND RA TINGS————————————————————–4-5
- MATERIAL AND CONSTRUCTION——————————————————-5-9
- SURFACE PREPARATION AND PROTECTION—————————————-9
- MARKINGS————————————————————————————–10-11
- TESTING AND INSPECTION—————————————————————-12
- WARRANTY————————————————————————————-12
APPENDIX
- MATERIAL LIST OF MAIN STEEL PARTS———————————————–13
- TESTING ITEMS, LOADS AND CRITERIA———————————————–14
20’DD GROUP STANDARD
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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- GENERAL
- 1.1 Operational Environment
The container is designed and manufactured for the carriage of general cargo by marine, road, and rail. It is designed to maintain its structural and weathertight integrity within a temperature range of -30oC to 80oC.
- 1.2 Regulations and Standards
The container will conform to and satisfy the following standards.
- 1.2.1 ISO/TC-104
All to meet series 1 freight containers set forth.
ISO 830 ———Freight containers-Terminology.
ISO 668———-Series 1 freight containers-Classification, external dimensions and ratings. ISO 6346 ——–Freight containers-Coding, identification and marking.
ISO 1161 ——–Series 1 freight containers-Corner castings-specification.
ISO 1496-1——-Series 1 freight containers-Specification and testing-
Part 1: General cargo containers
- 1.2.2 T.I.R. Requirements and Certifications
The container shall comply with the customs convention of containers, 1972 and all subsequent revisions to date and will be identified with appropriate approval plates and markings.
- 1.2.3 Timber Component Treatment and Certification
All exposed timber components are treated with an Australian government approved insecticide and the container will be such identified with appropriate immunization plate.
- 1.2.4 U.I.C. Registration
The container will be registered and comply with the International Union of Railways (UIC) code 592 OR.
- 1.2.5 CSC Requirements
The container will comply with the rules set forth in the International Convention for Safe Containers and will be so identified with a plate.
- 1.2.6 Classification Society
The container will be certified by Classification Society in design and individually inspected during its production.
1.3 Handling
The container will be constructed to be handled under the following conditions without distortion or effect on its structural integrity:
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
20’DD GROUP STANDARD
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20’DD GROUP STANDARD
- Lifting full by its bottom corner castings by means of fitting at a sling angle of 45 degrees.
- Lifting full or empty by forklift at its forklift pocket.
1.4 Transportation
The container will be constructed to be suitable for transportation in normal operating conditions by modes of:
- Lifting full by its top corner castings by means of spreaders
- Marine B. Rail
C. Road
– on deck or in cell guided by vertical or diagonal lashings
– on flat or container car secured at its bottom corner castings – on flat or chassis secured at its bottom corner castings
- DIMENSIONS AND RATINGS 2.1 Dimension
| Title | 20’ | |
| External (mm) | Length | 6,058 (0, -6) |
| Width | 2,438 (0, -5) | |
| Height | 2,591 (0, -5) | |
| Internal (mm) | Length | 5,844 (0, -6) |
| Width | 2,352 (0, -5) | |
| Height | 2,393 (0, -5) | |
| Door opening (mm) | Width | 2,340 (0, -5) |
| Height | 2,280 (0, -5) | |
- 2.2 Diagonal Difference
Diagonal tolerance of front and rear frames should be less than 10 MM. Diagonal tolerance of side and roof panels should be less than 13 MM.
- 2.3 Internal Capacity
32.9CU.M. (1,162 CU.FT.)
- 2.4 Ratings
- 2.5 Corner Protrusions
- 2.5.1 The faces of the bottom corner castings protrude from lower faces of all transverse members in the base of the container by 17 MM (+0.5, -6.0 MM).
- 2.5.2 The upper faces of top corner castings protrude from upper faces of the highest point of the roof by 6 MM.
- 2.5.3 The outer side faces of corner castings protrude from outside faces of corner posts by 3 MM.
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
| Title | KGS | LBS |
| Max. Gross Weight | 30,480 | 67,200 |
| Tare Weight(±2%) | 2,300 | 5,070 |
| Max. Payload | 28,180 | 62,130 |
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20’DD GROUP STANDARD 2.5.4 Under 1.8 x max. gross weight no part of the base will protrude more than 6 MM below the bottom
corner castings.
- MATERIAL AND CONSTRUCTION
- 3.1 General
The container is mainly constructed with steel frames, corrugated panels welded by CO2 shielded Arc welding. All welds of the exterior including the base frames are continuous with full penetration. Wooden floor is fixed to the cross members by self-tapping screws. All crevices will be sealed with elastic sealing compound.
- 3.2 Materials
The main constructional materials are shown in Appendix A of the specification.
- 3.3 Corner Castings
All corner castings used will comply with ISO/1161 standard.
- 3.4 Base Structure
The base structure will be composed of two (2) bottom side rails, a number of crossmembers and one pair of forklift pockets, which are welded together as a sub-assembly.
3.4.1 Bottom Side Rail
Each bottom side rail is built of a steel pressing made in one piece. The bottom flange face outwards so as to be easily repaired and hard to corrode.
3.4.2 Crossmember
Qty. : 2 pcs
Shape : Double “Z” section
Dimension : 155 x 52 x 30 x 28 x 4.5mm
The crossmembers are composed of a number of small pressed channel section and some large one located beneath each board joint of the plywood, which are placed at certain center distance. There are 3 pcs of t4.0 stiffeners in each joint member.
Shape : “C” section
Smallone: 122x45x45x4.0mm, Qty.: 17pcs. Largeone: 122x75x45x4.5mm, Qty.: 2pcs.
Stiffener : 4.0 mm thick, Qty. : 6 pcs. 3.4.3 Forklift Pocket
There will be a pair of forklift pocket in every container. Each forklift pocket consists of 2 pcs of crossmembers, one piece of top plate and 2 pcs of bottom plates. Each forklift pocket is designed according to ISO standard :
Top plate : 3 mm thick, Qty. : one piece. Bottom plate : 6.0 mm thick, Qty. : 2 pcs.
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
A primed 4.0 x 50 mm flat bar loosely placed on top of the crossmembers to support the floorboards at the center.
B.S.R.Corner Stiffener
Four corner stiffener, t4.0 x 200 mm thick protection plates will be welded from side rail to corner castings.
Front End
Same as the rear end .
The Rear Frame
The rear frame consists of one door header, one door sill, four corner castings and two rear corner posts.
Rear Corner Post
Each corner post is constructed from an inner part of channel shaped hot-rolled section steel and an outer part of steel pressing, welded together to form a hollow section to ensure the door opening and suitable strength against the stacking and racking force. Four (4) sets of hinge pin lugs are welded to each outer part of the corner post.
Inner part : 113 x 40 x 12 mm Outer part : 6.0 mm thick
Door Header
The door header is constructed from a lower part of a “U” shaped steel pressing with internal stiffener ribs at the location of the cam keeper’s backside and an upper part of steel pressing rear header plate, they are welded together to form a box section to provide a high rigidity.
Door Sill
Door header lower : 4.0 mm thick Door header upper : 3.0 mm thick
Door header stiffener : 4.0 mm thick, Qty. : 4 pcs.
The door sill is built of special channel section steel pressing with internal ribs as stiffeners at the backside of each cam keeper. The upper face of the sill has a slope for better drainage and the highest part is on the same level to the upper face of the wooden floor. Two channel section steel recesses are provided adjacent to the bottom fitting to prevent damage due to any twistlock misalignment.
Door sill : 4.5 mm thick, Slope : 10 mm Door sill stiffener : 4.0 mm thick, Qty. : 4 pcs.
Rear cone damage protector : 200 x 75 x 9.0 mm
20’DD GROUP STANDARD
3.4.4
Floor Central Rail
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2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
Side Wall Assembly
The side walls will be continuously welded to each other and to the side rails and corner posts. Welding penetration side panels to rails should be min.75%.
Top Side Rails
Each top side rail is used a square steel pipe. Rail: 60 x 60 x 3.0 mm Side Walls
Each side wall will be composed of a number of sheets for the intermediate (inner) parts and outer panels at each end of side wall, fully vertically corrugated into trapezium section, butt welded together to form one panel by automatic welding.
Roof
Roof Reinforcement Plate
Four reinforcement plates shall be mounted around the four corner castings.
dimension : 300 x 270 x 3.0 mm
Door
The door consists of two door leaves, each leaf with two locking devices, four hinges, seal gaskets and door holders.
Door Leaf
Each leaf consists of door panel, steel door frame which consists of vertical (inner & outer) and horizontal (upper & lower) rails. They are welded together to form the rectangular door leave.
Trapezium − Depth : 36 mm Outerface : 72 mm Interface : 70 mm Slope : 68 mm Pitch : 278 mm
- a) Inner panel : 1.6 mm thick, Qty. : 3 pcs / each side. b) Outer panel : 2.0 mm thick, Qty. : 2 pcs / each side.
The roof will be constructed by several die-stamp corrugated steel sheets with a certain upwards camber at the center of each trough and corrugation, these sheets are butt jointed together to form one panel by automatic welding.
Corrugation shape −
Depth : Outerface : Interface : Slope : Pitch :
20 mm 91 mm 91 mm
13.5 mm 209 mm
Camber upwards : Panel thickness : Sheet Qty. :
5 mm 2.0 mm
5 pcs
20’DD GROUP STANDARD
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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3.9.1.1 Door Panel : With 5 corrugations.
Washer Bushing Pin
3.9.4 Locking Devices
– Stainless steel, under the bottom of hinge – Self-lubricating synthetic
– Stainless steel
Panel thickness : Depth : Interface : Slope :
2.0 mm 36 mm 70 mm 68 mm
- 3.9.1.2 Door Frame : a) Door vertical rail : 100 x 50 x 3.2 mm (inner & outer) b) Door horizontal rail : Channel section, 150 x 50 x 3.0 mm.
- 3.9.1.3 Each door is capable of swinging 270 degrees when fully opened and can be secured in that position by means of door holder.
- 3.9.1.4 The right door is so designed that the right door must be opened before the left in compliance with T.I.R. requirements.
- 3.9.2 Door Gasket
The door gasket is of extruded EPDM with a double lip to ensure water tightness. The upper and side gaskets are of ‘J’ type configuration. Bottom is of a ‘C’ type configuration. It is attached with sealant and secured with ABS retainers by stainless steel rivets (stainless rivet and steel shaft). The door gasket middle upper corner is overlap to left door area with wider outer lip.
- 3.9.3 Hinges and Pins
Four forged hinges, providing with bushed hole, are welded to each door leaf. Each door is installed by hinge pins, washers and bushings.
Galvanized locking devices are secured to the door with nuts and bolts and has nylon bushings on the brackets. The locking devices will be hot dip galvanized to 75 micron and will be installed after the container is painted.
3.9.4 Door Holder and Receptacle
A door holder per door, made of mixed nylon rope, is tied to the center-side locking rod and the receptacle (hook type) is welded to each bottom side rail to retain the door at the open position.
3.10 Floor
3.10.1 The Floor Boards
The floor consists of plywood. The floor board used will be certified to meet the requirements of Australian Commonwealth Dept. of Health (Plant Quarantine Treatment Schedule) for Timber Components ( T.C.T. ). The floor dimension should according to the IICL dimension standard. The floor thickness is 28 mm.
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
20’DD GROUP STANDARD
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3.10.2
Arrangement and Fixing
The floor boards are longitudinally laid on the crossmember with a free floating flat steel at the center . The plywood boards are tightly secured to each crossmember with countersunk self-tapping electro-zinc plated steel screws. These heads of the floor screws are countersunk below the level of the upper surface of the floor by 2.0 mm to 2.5 mm.
Screws : M8 x 45 x ø16(Head) mm Screws’Qty.:5pcs/endrowandjoint, 4pcs/other
The plywood used will be a minimum of 19 plies and will be:
- Hardwood of a specific gravity range of 0.7-0.85 at a moisture content of 12%. E.G. Keruing, Apitong.
- Moisture content will be 13-15% when fitted to the container.
Sealing
- Each perimeter of the floor;
- All the overlapped joints of inside;
- All the holes for bolts and nuts;
- Three sides of CSC plate and ventilators;
- Between door gasket and door panel at 150 mm above lower gasket;
- Details refer to the application of sealant drawing SMGT-1001-DD.
Note: The application of interior sealant will be put on after water testing.
Sealant Materials : a. Chloroprene or waterborne sealant (Cargo contact area) b. Butyl (Hidden parts)
Special Features
Shoring Slots: 60×40 MM slots are provided for on each of the rear corner posts so that a 2″ thick batten can be secured to give protection against shifting cargo.
Lashing Rings and Lashing Bars
Lashing rings are welded to each bottom and top side rail at corresponding recessed area of side wall. Lashing ring Qty. / each bottom or top side rail : 5 pcs , total : 20 pcs.
Lashing bars are welded on each front & rear corner post slot.
Lashing bars Qty. / each front & rear corner post : 2 pcs, total : 8 pcs.
Capabilities of pull load of every lashing point are as following: Lashing rings on the side rails : 1,500 kg / each
Lashing bars on the corner posts : 1,000 kg / each
Treatment of lashing ring / bar: Electro zinc plated
The 3d locking devices of front door must be secured with bolts of M10X45 and nuts by welding between the bolt and nut at the hole of the handles.
3.12
3.12.1
3.12.2 1)
2) 3)
4) 3.12.3
20’DD GROUP STANDARD
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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20’DD GROUP STANDARD 3.12.4 Two piece of connecting panel which paint with interior top coat is installed on the horizontal door
members of the front door by bolts and nuts to fix two leaves.
3.12.5 Ventilators – Two (2) ventilators should be small type fabricated from A.B.S. resin by injection molding process. They will be secured to the panel recess near right corner post of both side walls, by means of three (3) Aluminum Huck bolts.
3.12.6 Customs Seal Provision
- 4.1
4.2
Customs seal provision are made on locking handle and retainer in accordance with TIR requirements.
SURFACE PROTECTION
Surface Preparation
All steel components, prior to forming, will be shot-blasted to a SA 2.5 standard surface by means of an automatic centrifugal shot surface cleaning machine. A weld-able primer compatible to the paint system will be applied immediately to a thickness of 10 micron to preserve the surface integrity during the assembly process. After the container is assembled it is shot-blasted again manually to clean all the welds and any other area that was contaminated during the assembly process. Slags and spatters are removed by means of grinding or needle hammers.
Paint
The zinc content of zinc rich primer shall be no less than 65% measured by weight of solid.
Exterior:
Apply one coat of zinc rich primer to 25 mic. DFT. Apply one coat of epoxy primer to 40 mic. DFT. Apply one coat of Acrylic top coat to 40 mic. DFT. Total 105 mic. DFT.
Interior: GREY (RAL 7035)
Apply one coat of zinc rich primer to 25 mic. DFT. Apply one coat of epoxy top coat to 50 mic. DFT. Total 75 mic. DFT.
Undercoating
The whole underside will be coated with 25 mic. of zinc rich primer and 200 mic. of Waxy or Bituminous undercoating.
Total 225 mic. DFT.
MARKING Lettering
The container will be marked in accordance with ISO requirements, owner’s specifications, and other regulatory authorities.
4.3
- 5.1
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2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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20’DD GROUP STANDARD
5.2 Materials
The decals are of a self adhesive type and are warranted for seven (7) years against normal wear and tear. All data plates will be stainless steel and secured by stainless steel rivets (stainless rivet and steel shaft) and sealed with sealant.
5.3 Plating and Stamping
- 5.3.1 Stamped the manufacturer’s serial number in 10mm(13/32”) high digits on the top face of the right hand lower rear corner fitting and the owner’s code & number in same high digits on the left hand rear corner fitting.
- 5.3.2 Chemically etched stainless steel plates (Consolidated data plate i.e. TIR, CSC, TCT) will be permanently riveted with stainless steel blind rivets and sealant will be applied around these plates.
- TESTING AND INSPECTION
- Materials and Parts Inspection
All materials and parts are inspected by the manufacturer’s Quality Control department to ensure they are up to the specification called for in the design.
Production Line Quality Control
All containers are manufactured under effective quality control procedures to meet the specified standards. All dimensions are checked and smooth operation of the doors are ensured after each container’s completion. A light and watertight test is conducted on all containers.
One in every 200 of containers shall be tested for following items:
1)Stacking test.
2)Lifting from top corner fitting test. 3)Lifting from bottom corner fitting test. 4)Floor test.
Quality control personnel independent of the production dept. will be inspecting on all phases of the production as well as ad hoc inspections by the classification society’s surveyor and buyer’s representatives to assure the quality of the container.
WARRANTY
The Warranty period will commence the day after the certification is issued by the classification society
Paint Warranty
The application of paint will be warranted against corrosion and paint failure for a period of five (5) years. The Warranty is for all faults affecting more than 10% of the painted surfaces and will assure partial or total re-painting of the containers. Normal wear/tear, or corrosion caused by acid, alkali or results of damages by abrasion, impact or accident are excluded.
Note: Corrosion is defined as rusting which exceeds RE3 (European scale of degree of rusting) on at least ten (10) percent of the total container surface coated with the concerned coating system.
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
7.3 Other Warranty
This container will be warranted against any defects or omissions in constructions, workmanship and materials for a period of one (1) year. In the event of defects, FACTORY will replace, correct or install to make the container satisfactory to this specification and its intended service at FACTORY’s expense. Any damages caused by mis-handling, mis-securing, mis-loading, impact and any natures of accidents are excluded.
20’DD GROUP STANDARD
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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Material list for main steel parts:
YP = YIELD POINT (KG/MM2)
E = ELONGATION %
TS = TENSILE STRENGTH (KG/MM2)
REAR CORNER POST-OUTER ) DOOR PANEL ) DOOR HEADER ) DOOR RAIL ) DOOR EDGE MEMBER ) DOOR SILL ) SIDE PANEL ) TOP SIDE RAIL ) BOTTOM SIDE RAIL ) ROOF PANEL ) CROSSMEMBER ) REINFORCEMENT PLATE ) FORK LIFT POCKET ) FLOOR CENTRAL RAIL )
DOOR SEAL RETAINER ) HINGE PIN )
CONE DAMAGE PROTECTOR ) REAR CORNER POST-INNER )
LOCKING BAR ) CORNER CASTING )
DOOR HINGE )
DOOR LOCKING CAM ) AND KEEPER )
JIS: SPA-H OR EQUIVALENT YP=35 TS=49 E=22
APPENDIX A
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
20’DD GROUP STANDARD
APPENDIX B PROTOTYPE TESTING
The prototype container to be manufactured in accordance with this specification will be tested by manufacturer under the supervision of classification society.
Note: R: Max Gross Weight P: Max Payload T: Tare Weight
20’DD GROUP STANDARD
Test items & loads
- 1) Stacking
Internal load : 1.8R-T
Test load: 97,200 kg/post
- 2) Lifting (from top corner fittings) Internal load : 2R-T
- 3) Lifting (from bottom corner fittings) Internal load : 2R-T
- 4) Lifting (for forklift pockets) Internal load : 1.6R-T
- 5) Restraint (longitudinal) Internal load : R-T
Test load : 2R
- 6) Floor strength
Test load : 7,260 kgs
- 7) End Wall strength
Test load : 0.4(R-T)=0.4P - 8) Wall strength (side)
Test load : 0.6(R-T)=0.6P - 9) Roof strength (weakest part) Test load : 300 kgs
- 10) Rigidity (transverse) Test load : 15,240 kgs
- 11) Rigidity (longitudinal)
Test load : 7,620 kgs
- 12) Weatherproofness
Test methods
Hydraulic cylinder load will be applied to each corner post through top corner fittings.
Offset: 25.4 mm lateral
38.0 mm longitudinal
Lifting vertically.
Time duration : 5 minutes
Lifting 45 degree to the horizontal. Time duration : 5 minutes
Lifting by horizontal bars.
Bar length : 1,828mm
Bar width : 200mm
Hydraulic cylinder load will be applied to the bottom side rails.
Use of a special truck.
Total contact area: 284 sq. cm Wheel width : 180 mm Wheel centre : 760 mm Compressed air bag will be used.
Compressed air bag will be used on one side only.
Applied area will be 600x300mm longitudinal and transverse.
Hydraulic cylinder load will be applied to the header rail through top corner fittings.
Hydraulic cylinder load will be applied to the top side rail through top corner fitting on one side only. Two times for pulling and pushing. Inside dia. of nozzle : 12.5mm
Distance : 1.5 m Speed : 100 mm/sec. Pressure : 1 kg/sq. cm
Note:
1) This file is strictly confidential and privileged. It is intended only for the use of the intended recipient.
2) If you are not the intended recipient, any part of this file should not be copied, forwarded or used for any
purpose or disclosed to any person without the permission of factory.
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