ASTM A672 EFW Pipes & Tubes
February 24, 2017
S355JR
February 24, 2017| Grade : | 20MnCr5 | |
| Number: | 1.7147 | |
| Classification: | Alloy special steel | |
| Standard: |
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| Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser, other than for the purpose of finishing the heat. Steels with improved machinability as a result of the addition of lead or higher sulfur contents, depending on the manufacturing process up to around 0.1 % S, may be supplied on request. In this case, the upper limit of the manganese content may be increased by 0.15 % |
| C | Si | Mn | P | S | Cr |
| 0.17 – 0.22 | max 0.4 | 1.1 – 1.4 | max 0.025 | max 0.035 | 1 – 1.3 |
Mechanical properties of grade 20MnCr5 (1.7147)
| Brinell hardness (HBW): (+S) | 255 |
| Brinell hardness (HBW): (+A) | 217 |
| Brinell hardness (HBW): (+TH) | 170 – 217 |
| Brinell hardness (HBW): (+FP) | 152 – 201 |
| Brinell hardness (HBW): (+N) | 140 – 201 |
Equivalent grades of grade 20MnCr5 (1.7147)
| USA – |
Germany DIN,WNr |
Japan JIS |
France AFNOR |
Italy UNI |
China GB |
Poland PN |
Czechia CSN |
Finland SFS |
Russia GOST |
Inter ISO |
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