Steel 50РА (50P)
70G steel
Steel 60S2HFA
Steel 60KhFA (60KhF)
Steel 65
Steel 65G (65G1)
Steel 65GA
Steel 65S2VA
Steel 68A
Steel 68GA
Steel 70
Steel 60S2HG
Steel 70G2
Steel 70S2HA (EI142)
Steel 70C3A
70KhGFA steel
Steel 75
Steel 80
Steel 85
KT-2 steel
KT-3 steel
Steel 55S2A
Steel 3K-7
Steel 40P
Steel 50RA (50P)
50KhG steel
50KhGA steel
50KhGFA steel
Steel 50KhFA (50KhF)
51KhFA steel
Steel 55C2
Steel 60С2Х (60С2ХА; 60С2ХАA)
Steel 55S2GF
Steel 55KhGR
Steel 55KhFA (55KhF)
60G steel
Steel 60C2
Steel 60S2A
Steel 60S2G
Steel 60C2H2A
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 50РА |
| Designation GOST Latin | 50PA |
| Transliteration | 50RA |
| The chemical elements | 50B |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 50Р |
| Designation GOST Latin | 50P |
| Transliteration | 50R |
| The chemical elements | 50B |
Description
50РА steel is used: for the production of slabs for the manufacture of tape, the flat springs for various purposes.
Note
Steel spring alloy of high quality.
Standards
| Name | Code | Standards |
|---|---|---|
| Sheets and stripes | В23 | GOST 14918-80 |
| Sectional and shaped rolling | В32 | GOST В 5160-89, TU 14-1-1271-75 |
| Tapes | В34 | TU 14-1-2687-79, TU 14-1-2992-80 |
| Bulls. Blanks. Slabs | В31 | TU 14-1-2782-79 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | B |
|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-2687-79 | 0.49-0.55 | ≤0.01 | ≤0.02 | 0.5-0.8 | 0.1-0.3 | 0.17-0.37 | ≤0.3 | The rest | - | ≥0.001 |
| TU 14-1-2782-79 | 0.49-0.55 | ≤0.012 | ≤0.016 | 0.5-0.8 | 0.1-0.3 | 0.17-0.37 | ≤0.3 | The rest | ≤0.25 | ≤0.0045 |
Fe is the basis.
According to TU 14-1-2687-79 the chemical composition is given for steel grade 50RA.
According to TU 14-1-2782-79, the chemical composition is given for steel grade 50RA, smelted in open electric arc furnaces. In the steel, deviations in chemical composition are allowed: in carbon ± 0.010%, in silicon ± 0.020%, in manganese ± 0.020%, in sulfur ± 0.0030%, in phosphorus ± 0.0030%, provided that the total mass fraction of sulfur and phosphorus will not be more than 0.0280%. Boron is introduced according to the calculation without fumes in an amount not exceeding 0.0045%, while the residual content in the steel should not be less than 0.0010%.
According to TU 14-1-2687-79 the chemical composition is given for steel grade 50RA.
According to TU 14-1-2782-79, the chemical composition is given for steel grade 50RA, smelted in open electric arc furnaces. In the steel, deviations in chemical composition are allowed: in carbon ± 0.010%, in silicon ± 0.020%, in manganese ± 0.020%, in sulfur ± 0.0030%, in phosphorus ± 0.0030%, provided that the total mass fraction of sulfur and phosphorus will not be more than 0.0280%. Boron is introduced according to the calculation without fumes in an amount not exceeding 0.0045%, while the residual content in the steel should not be less than 0.0010%.
