GOST 8732-78 Seamless Hot-worked Steel Pipes, Carbon Steel Pipes, Alloy Steel Pipes, GOST 8732-78 10 St35.8, GOST 8732-78 10G2 10Mn2, GOST 8732-78 20 St45.8, GOST 8732-78 35, GOST 8732-78 45, GOST 8732-78 15ChM, 15CrMo, GOST 8732-78 20Ch 20Cr, GOST 8732-78 30ChMA 30CrMo, GOST 8732-78 40Ch 40Cr, Hot Rolled Steel Pipes

GOST 8732-78 Seamless Hot-worked Steel Pipes

Standard: GOST 8732-78
Equivalent Standard: ASTM A106, ASTM A53, EN 10216-1, DIN 1629

Material: 10
Equivalent Material: 1010, E235, St35.8, St37

Chemistry Composition

C, %	Si, %	Mn, %	Cr, %	Ni, %	S, %	P, %	Cu, %
0.07-0.14	0.17-0.37	0.35-0.65	0.15 max	0.30 max	0.040 max	0.035 max	0.30 max

Mechanical Properties

Tensile Strength, MPa	Yield Strength, MPa	Elongation, %
353 min	216 min	24 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

Keyword: GOST 8732-78, Steel Pipe, Hot worked Steel Pipe, Seamless Steel Pipe

Home | About Us | Product | Know How | Contact Us