GOST 8732 Steel 20 Hot Rolled Seamless Pipes

• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Construction & Decoration
• Section Shape: Round
• Model NO.: KM-20200910
• Size: 32-610 mm
• Thickness: 1.5- 46 mm
• Length: 5.8-12m
• Finished: Black Painted, PE Coated, Galvanized, Oiled
• Standards: En 10216
• Materials: P355,P355n,P355nh,P355nl1,P355nl21
• Transport Package: in Bundles or as The Customers Rquirement
• Specification: 21.3-660 mm
• Trademark: Kingmetal
• Origin: China
• HS Code: 7304291000
• Production Capacity: 1000 Tons/Month

Product Description

GOST 8732 Steel 20 Hot Rolled Seamless Pipes

1.Standard: GOST 8731-74/8732-78 hot rolled seamless steel pipe
2. Grade: 10, 20, 35, 45, 10Mn2, 15Cr, 20Cr, 40Cr, 30CrMnSi, 15CrMo, 30CrM acc. to GOST 1050-88, GOST 4543-71, GOST 19281-89
3. Size: Outside Diameter: 32 - 610 mm 
          Wall Thickness: 1.5- 46 mm 

Seamless Steel Pipe
Hot rolled seamless steel pipe	GOST 8731-74, 8732-78 (st.10,   20, 09G2S)	Ø 32-680 mm
Cold drawn seamless steel pipe	GOST 8733-74, 8734-75 (st.20,   09G2S)	Ø 10-203mm

 

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

Material: 20
Equivalent Material: 1020, St44, St45.8

Chemistry Composition

C, %	Si, %	Mn, %	Cr, %	Ni, %	S, %	P, %	Cu, %
0.17-0.24	0.17-0.37	0.35-0.65	0.25 max	0.30 max	0.040 max	0.035 max	0.30 max

Mechanical Properties

Tensile Strength, MPa	Yield Strength, MPa	Elongation, %
412 min	245 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. It can be used for making bollard.

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

 

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