ГОСТ 8733 Gost 8734 Seamless Cold Formed Steel Pipe
Specification
GOST Standard steel pipe/ USSR STATE STANDARD
GOST 8731-87 seamless hot-deformed steel pipes
GOST 8732-78 - seamless hot-deformed steel pipes,manufactured on the outside diameter, wall thickness and length.
EN GOST 8732-78 Seamless Hot-Deformed Steel Tubes-Range
GOST 8733-74 Seamless Cold and Warm Deformed Steel Tubes-Technical requirements
GOST 8734-75 Seamless Cold and Warm Deformed Steel tubes-Range
GOST 9567-75 Precision Steel Tubes-Range
GOST 9940-72 Seamless hot deformed tubes made of corrosion resistant steel
GOST 9941-72 Seamless cold and warm deformed tubes made of corrosion Resistant steel
GOST 1060-76 Steel seamless cold-deformed tubes for shipbuilding-Technical requirements
GOST 5654-76 Steel seamless hot-deformed tubes for shipbuilding-Technical requirements
GOST 550-75 Steel seamless steel tubes for petroleum processing and petrochemical industry
GOST 14162-69 Small-sizes steel tubes (capillary )
GOST 10192-62 Bimetallic seamless tubes-Range
GOST 21945-76 Seamless hot-deformed steel tubes made of alloys on the basis of titanium-Technical requirements
GOST 21729-76 Seamless cold-deformed and hot-deformed tubes made of structural carbon and alloyed steel
Specification
| Standard |
GOST 9567-75 |
| Grade |
steel 10/20/35/45/20Cr/40X/30ХГСА |
| Delivery Condition |
NBK(+N) BK(+C) GBK(+A) BKW(+LC) BKS(+SR) AS Rolled |
| Size |
OD:4 to 219mm Thickness: 0.5-20mm, Length: 3m,5.8,6 or according to requirements |
| Finish |
1.Bare Tube (No coating): Bright and smooth 2.Galvanized surface (Sliver/Yellow/Colorful) Zinc coating of 8-12um 3.Black phosphate |
| Application |
Hydraulic System; Car/bus; construction vehicle/ Mechanical |
| Delivery time |
A.3 days if this good is stock goods. B. About 30 days according to the quantity |
Chemical composition（%）
| Steel Grade | C | Si | Mn | Cr | Ni | S | P | Cu |
| 10 | 0,07-0,14 | 0,17-0,37 | 0,35-0,65 | 0,15 | 0,3 | - | - | - |
| 20 | 0,17-0,24 | 0,17-0,37 | 0,35-0,65 | 0,25 | 0,25 | 0,03 | 0,025 | 0,3 |
| 35 | 0,32-0,40 | 0,17-0,37 | 0,50-0,80 | 0,25 | 0,3 | 0,04 | 0,035 | 0,3 |
| 45 | 0,42-0,45 | 0,17-0,37 | 0,50-0,80 | 0,25 | - | - | - | - |
| 40Х | 0,36-0,44 | 0,17-0,37 | 0,50-0,80 | 0,80-1,10 | 0,3 | 0,035 | 0,035 | 0,3 |
| 30ХГСА | 0,28-0,34 | 0,90-1,20 | 0,80-1,10 | 0,80-1,10 | 0,3 | 0,005 | 0,025 | - |
Mechanical property
| Steel Grade | Tensile strength,N/mm2 (min) | Yield strength,N/mm2 (min) | Elongation, %(min) |
| 10 | 343 | 206 | 24 |
| 20 | 412 | 245 | 21 |
| 35 | 510 | 294 | 17 |
| 45 | 589 | 323 | 14 |
| 40Х | 618 | - | 14 |
| 30ХГСА | 491 | - | 18 |
Application
1.For Vehicle (Automotive, locomotive, Construction Machinery like Concrete pump and others)
A. Power train system:
• Fuel-rails • Fuel-lines • Common-rail diesel lines • Piston-cooling jets • SCR & EGR
• Rigid pipes • Oil- & water-cooling pipes
B. Fluid handling systems
• Tube assemblies • Air-conditioning tube • Clutch actuator pipes C. Drive and steering system • Ingrain Gear Pipes •
Power-Steering Feed-Pipes
D. Hydraulic system
• Hydraulic and Pneumatic Pressure Lines • Hydraulic fittings • Hydraulic tubing
E. Others For example
• Front axles • Sun-shading board wire tube and other wire tubes • Headrest chair Tube
2. Mechanical and engineering usage
• Mechanic Processing and parts • Metal processing •Heat Exchange • Gas Cylinders
•Sub-sea and Marine • Aerospace • Winder Power Equipment •Energy and Power Generation •Bearings • etc
Other usage for details as per customers requirements
Quality assurance
1. Strict according to standard.
2. Sample: Sample is free for test.
3. Tests: Salt spray test/Tensile test / Eddy current / Chemical composition test according to customers' request
4.Certificate: IATF16949, ISO9001, SGS etc.
5.EN 10204 3.1 Certification
