There are 20 # steel, there are also 20g. In addition to their carbon content, 20g and some trace elements are more suitable for the use of boiler pressure vessels. Another 20g also focuses on its physical performance. Such as bending, impact and tensile properties.
20 steel pipe detailed parameters and standard description unified digital code U20252
GB/T——20(GB)
ISO - This steel code is not included in the standard (International Standard)
ГОСТ——————20 (former Soviet Union)
ASTM - 1020 (United States)
JIS - S20C (Japan)
DIN - C22 (former Federal Republic of Germany)
BS - 1C22 (UK)
NF - C22 (France)
Note: Some steels in domestic brands have no code in ISO.
20 ingredients:
C——(0.17~0.24)%
Si——(0.17~0.37)%
Mn - (0.35 - 0.65)%
P - ≤ 0.040%
S - ≤ 0.040%
Yield point σ^s - not less than 250MPa
Tensile strength σ^b - not less than 420MPa
Elongation δ - - not less than 25%
Section shrinkage ψ———— not less than 55%
Impact toughness a ^ K - no hardness HBS - hot rolled steel 156
The steel pipe knowledge source: 51 steel pipe network.
20 steel pipe detailed parameters and standard description unified digital code U20252
GB/T——20(GB)
ISO - This steel code is not included in the standard (International Standard)
ГОСТ——————20 (former Soviet Union)
ASTM - 1020 (United States)
JIS - S20C (Japan)
DIN - C22 (former Federal Republic of Germany)
BS - 1C22 (UK)
NF - C22 (France)
Note: Some steels in domestic brands have no code in ISO.
20 ingredients:
C——(0.17~0.24)%
Si——(0.17~0.37)%
Mn - (0.35 - 0.65)%
P - ≤ 0.040%
S - ≤ 0.040%
Yield point σ^s - not less than 250MPa
Tensile strength σ^b - not less than 420MPa
Elongation δ - - not less than 25%
Section shrinkage ψ———— not less than 55%
Impact toughness a ^ K - no hardness HBS - hot rolled steel 156
The steel pipe knowledge source: 51 steel pipe network.
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