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Seamless Pipe For Structure (GB/T8162-2008) Is Used For The General Structure And Mechanical Structure Of The Seamless Pipe.Seamless Steel Tube Is Divided Into A Variety Of Different Uses.
Stainless Steel Seamless Pipe For Structure (GB/T14975-2002) Is A Hot-Rolled (Extruded, Expanded) And Cold-Drawn (Rolled) Seamless Pipe Made Of Stainless Steel Used In Chemical, Petroleum, Textile, Medical, Food, Machinery And Other Industries, Corrosion-Resistant Pipes And Structural Parts And Components.
GB/T8162-2008 (Seamless Pipe For Structure) Is Mainly Used For General Structure And Mechanical Structure.Its Representative Material (Brand) : Carbon Steel 20, 45 Steel, Q235, Alloy Steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo And So On.
Seamless Steel Pipe
Because Of Its Manufacturing Process Is Different, It Is Divided Into Hot Rolled (Extruded) Seamless Steel Tube And Cold Drawn (Rolled) Seamless Steel Tube Two Kinds.Cold-Drawn (Rolled) Pipe Is Divided Into Circular Pipe And Special-Shaped Pipe Two Kinds.
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Product name |
Manufacturing method |
Main features and applications |
|
Carbon Steel Pipe for Machine Structures |
These products normally conform to JIS G 3445 Carbon Steel Tubes for Machine Structural Purposes. |
These steel pipe products are used in machines, automobiles, bicycles, furniture, tools and utensils, and other machine parts. |
|
Alloy Steel Pipe for Machine Structures |
These products normally conform to JIS G 3441 Alloy Steel Tubes for Machine Structure Purposes, but we also manufacture such alloy steel pipe products using materials that conform to JIS G 4053 Low-Alloyed Steels for Machine Structural Use, as well as to other standards and specifications. |
These steel pipe products are used in machines, automobiles, and other machine parts. |
|
ERW Carbon Steel Pipe for Machine Structures |
These products are manufactured based on JIS G 3472 Electric Resistance Welded Carbon Steel Tubes for Automobile Structural Purposes. |
They are used mainly in automotive machine parts. |
|
High-Strength Steel Pipe for Machine Structures |
These steel pipe products, include seamless steel pipe, ERW steel pipe, and hot finished ERW steel pipe. |
They are used in marine structures and cylinders for their excellent weldability and low-temperature properties, and in machine parts for reduced weight and increased strength. |
|
Usage |
OD(mm) |
WT(mm) |
Steel Grade |
Standard/ Specification |
Aplication Fields |
|
Structural Pipe |
42-760 |
4-120 |
20#,35#,45#,Q345A/B/C/D,Q390, Q420,25Mn,27SiMn etc. |
GB/T 8162 |
General structural and mechanical pipe |
|
Vehicle Pipe |
45-245 |
4-35 |
20Mn2,SAE1527,MZ410R, MZ530R,30Mn2,40Cr,45Mn2 etc. |
Technical agreement, YB/T5035 |
Pipe used for automobile axle and automobile semi-shaft |
|
Mold Pipe &Tube |
DN200-DN1200 |
|
21CrMo10,21CrMo10-2 etc. |
Q/OHAD030, technical agreement |
Centrifugal graphite casting-iron pipe mold |
|
Military Pipe |
42-760 |
4-120 |
30Cr,40Cr,35CrNi1MoA etc. |
National military standard, agreement |
Pipe for military use |
|
Geology Drilling Pipe &Tube |
42-133 |
|
DZ40,DZ55,STM-R780,DZ60 etc. |
Q/OHAD006, GB/T 9808, agreement |
Drilling pipe |
|
Hydraulic Support Pipe |
42-760 |
4-120 |
20#,35#,45#,27SiMn,30MnNbRE, 30CrMnSi,30CrMnSiA etc. |
GB/T 17396, technical agreement |
Making hydraulic equipment for coal mine exploitation and hydraulic cylinder and piston for truck crane |
|
Fluid Transmission Pipe & Tube |
42-760 |
4-120 |
20#,Q345,Q390 etc. |
GB/T 8163, technical agreement |
Pipe & tube used for fluid transmission |
Note: Steel pipe can be developed and produced to meet the users’ personalized requirements according to their demands.
|
Standard |
Corresponding |
Application |
|
A500 |
ASTM A500 / A500M |
Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes |
|
A501 |
ASTM A501 / A501M |
Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing |
|
A847 |
ASTM A847 / A847M |
Specification for Cold-Formed Welded and Seamless High Strength, Low Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance |
|
A618 |
ASTM A618 / A618M |
Specification for Hot-Formed Welded and Seamless High-Strength Low-Alloy Structural Tubing |
