GOST 8732-78 Seamless Hot-worked Steel Pipes 10G2
Standard: GOST 8732-78
Equivalent Standard: ASTM A106, ASTM A53, EN 10216-1, DIN 1629 |
Material: 10G2 |
Chemistry Composition |
C, % |
Si, % |
Mn, % |
Cr, % |
Ni, % |
S, % |
P, % |
Cu, % |
0.07-0.15 |
0.17-0.37 |
1.20-1.60 |
0.30 max |
0.30 max |
0.035 max |
0.035 max |
0.30 max |
|
Mechanical Properties |
Tensile Strength, MPa |
Yield Strength, MPa |
Elongation, % |
421 min |
265 min |
21 min |
|
Outside Diameter & Tolerance |
Outside Diameter, mm |
Tolerance |
32≤OD≤50 |
±0.5mm |
51≤OD≤219 |
±1% |
|
Wall thickness & Tolerance |
Wall Thickness, mm |
Tolerance, % |
3≤OD≤15 |
+12.5/-15 |
16≤OD≤30 |
±12.5 |
32≤OD≤45 |
+10/-12.5 |
|
GOST 8732-78 applies to hot-worked seamless steel pipes of general purpose, manufactured by outside diameter, wall thickness and length. |
Manufacture: the tubes shall be manufactured by cold drawn and hot rolled.
Delivery Condition: heat treated.
Inspection & Test: chemical composition test, elongation test, hardness test, flattening test, bending test, flaring test, NDT, surface inspection and dimension check. |
Length: 4000mm; 6000mm; 6500mm; 10000mm; 12010mm; and so on.
Max length: 18000mm |
|
Surface: Black painted,oil coated, Smooth, Bright,etc.
Application:Structural pipe, Fluid pipe, boiler pipe, drill pipe, oil and gas pipe, hydraulic pipe, etc.
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