• GOST 8732 Steel 20 Hot Rolled Seamless Pipes
  • GOST 8732 Steel 20 Hot Rolled Seamless Pipes
  • GOST 8732 Steel 20 Hot Rolled Seamless Pipes
  • GOST 8732 Steel 20 Hot Rolled Seamless Pipes
  • GOST 8732 Steel 20 Hot Rolled Seamless Pipes
  • GOST 8732 Steel 20 Hot Rolled Seamless Pipes

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
Customization:
Diamond Member Since 2011

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Guangdong, China
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Basic Info.

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

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