Company Details
Shijiazhuang Bang dong Pipeline Technology Co,Ltd.
November 08, 2018
C | Si | Mn | Ni | S | P | Cr | Cu | As |
0.17 - 0.24 | 0.17 - 0.37 | 0.35 - 0.65 | max 0.3 | max 0.04 | max 0.035 | max 0.25 | max 0.3 | max 0.08 |
Ac1 = 724 , Ac3(Acm) = 845 , Ar3(Arcm) = 815 , Ar1 = 682 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Sheet heat-treatment, GOST 4041-71 | 4 - 14 | 340-490 | 28 | |||||
Pipe hot strain, GOST 550-75 | 431 | 255 | 22 | 50 | 780 | |||
Pipe, GOST 8731-87 | 412 | 245 | 21 | |||||
Pipe, GOST 10705-80 | 372 | 225 | 22 | |||||
Rolled stock, GOST 1050-88 | to 80 | 410 | 245 | 25 | 55 | Normalizing | ||
Rolled stock cold-worked , GOST 1050-88 | 490 | 7 | 40 | |||||
Rolled stock annealed , GOST 1050-88 | 390 | 21 | 50 | |||||
Band annealed , GOST 2284-79 | 310-540 | 18 | ||||||
Band cold-worked , GOST 2284-79 | 490-830 |
Brinell hardness for 20 ( 20 ) (annealing) , GOST 1050-88 | HB 10 -1 = 163 MPa |
Brinell hardness for 20 ( 20 ) (cold-drawn, cold-worked) , GOST 1050-88 | HB 10 -1 = 207 MPa |
Brinell hardness for 20 ( 20 ) , Sheet GOST 4041-71 | HB 10 -1 = 127 MPa |
Brinell hardness for 20 ( 20 ) , Pipe GOST 550-75 | HB 10 -1 = 156 MPa |
Brinell hardness for 20 ( 20 ) , Pipe GOST 8731-87 | HB 10 -1 = 156 MPa |
Brinell hardness for 20 ( 20 ) , Sheet trick GOST 1577-93 | HB 10 -1 = 156 MPa |
Weldability: | without limitations. |
Flakes : | not predisposed |
Temper brittleness: | not predisposed |
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Grade | MPa | 1/Grade | Watt/(m·Grade) | kg/m3 | J/(kg·Grade) | Ohm·m |
20 | 2.13 | 52 | 7859 | |||
100 | 2.03 | 11.6 | 50.6 | 7834 | 486 | 219 |
200 | 1.99 | 12.6 | 48.6 | 7803 | 498 | 292 |
300 | 1.9 | 13.1 | 46.2 | 7770 | 514 | 381 |
400 | 1.82 | 13.6 | 42.8 | 7736 | 533 | 487 |
500 | 1.72 | 14.1 | 39.1 | 7699 | 555 | 601 |
600 | 1.6 | 14.6 | 35.8 | 7659 | 584 | 758 |
700 | 14.8 | 32 | 7617 | 636 | 925 | |
800 | 12.9 | 7624 | 703 | 1094 | ||
900 | 7600 | 703 | 1135 | |||
1000 | 695 | |||||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
USA | Germany | Japan | France | England | European | Italy | Belgium | Spain | China | Sweden | Bulgaria | Hungary | Poland | Romania | Czechia | Australia | Switzerland | South Korea | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
- | DIN,WNr | JIS | AFNOR | BS | EN | UNI | NBN | UNE | GB | SS | BDS | MSZ | PN | STAS | CSN | AS | SNV | KS | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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B03 - Metal forming treatment. Forgings |
В22 - Graded and shaped rolling |
B23 - Sheets and Strips |
B24 - Ribbons |
В32 - Graded and shaped rolling |
B33 - Sheets and Strips |
B34 - Ribbons |
В62 - Steel pipes and connecting parts to them |
В71 - Low-carbon steel wire |
В72 - Medium-high and high-carbon steel wire |
B76 - Metal nets |
Mechanical properties : | |
sв | - Tensile strength , [MPa] |
sT | - Yield stress, [MPa] |
d5 | - Specific elongation at fracture , [ % ] |
y | - Reduction of area , [ % ] |
KCU | - Impact strength , [ kJ / m2] |
HB | - Brinell hardness , [MPa] |
Physical properties : | |
T | - Test temperature , [Grade] |
E | - Young modulus , [MPa] |
a | - Coefficient of linear expansion (range 20o - T ) , [1/Grade] |
l | - Termal (heat) condition coefficient , [Watt/(m·Grade)] |
r | - Density , [kg/m3] |
C | - Specific heat ( range 20o - T ), [J/(kg·Grade)] |
R | - Electrical resistance , [Ohm·m] |
Weldability : | |
without limitations | - welding is done without heating and subsequent heat treating |
limited weldability | - welding is possible under heating up to 100-120 grade and subsequent heat treating |
hard weldability | - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treating ia annealing |
The above is the Steel Grade 20. GOST we have listed for you. You can submit the following form to obtain more industry information we provide for you.
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