60S2HA, 60S2HFA, 50HGFA, 70S2HA - alloy spring steel according to GOST 14959-79.
Table of content:
| Standard | Grade | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical composition % | |||||||||||||||
| C: | Si: | Mn: | P: | S: | Cr: | Ni: | Cu: | V: | Al: | ||||||
| GOST | 60S2ChA - 60C2ХA | ||||||||||||||
| 0.56-0.64 | 1.4-1.8 | 0.4-0.7 | <0.025 | <0.025 | 0.7-1.0 | <0.25 | <0.25 | - | - | ||||||
| GOST | 60S2ChFA - 60C2XФA | ||||||||||||||
| 0.56-0.64 | 1.4-1.8 | 0.4-0.7 | <0.025 | <0.025 | 0.9-1.2 | <0.25 | <0.2 | 0.1-0.2 | - | ||||||
| GOST | 60S2G - 60C2Г | ||||||||||||||
| 0.55-0.65 | 1.8-2.2 | 0.7-1.0 | <0.035 | <0.035 | <0.3 | <0.25 | <0.2 | - | - | ||||||
| GOST | 60S2N2A - 60C2H2А | ||||||||||||||
| 0.56-0.64 | 1.4-1.8 | 0.4-0.7 | <0.025 | <0.025 | <0.3 | 1.4-1.7 | <0.2 | - | - | ||||||
| GOST | 60ChFA - 60XФA | ||||||||||||||
| 0.55-0.65 | 0.17-0.37 | 0.5-0.8 | <0.025 | <0.025 | 0.8-1.3 | <0.4 | <0.4 | 0.1-0.2 | 0.02-0.05 | ||||||
| GOST | 70S2ChA - 70C2XА | ||||||||||||||
| 0.65-0.75 | 1.4-1.7 | 0.4-0.6 | <0.025 | <0.025 | 0.2-0.4 | <0.4 | <0.4 | - | - | ||||||
| GOST | 50ChGFA - 50XГФA | ||||||||||||||
| 0.48-0.55 | 0.17-0.37 | 0.8-1.0 | <0.025 | <0.025 | 0.2-0.4 | <0.4 | <0.4 | - | - | ||||||
60S2HA, 60S2HFA, 50HGFA, 70S2HA – description
Strong, ductile, hardenable steel for quenching in oil. Used for all types of springs and spring parts, subjected to heavy and alternating loads. It can operate in the high temperature up to 300°C.
Typical applications are suspension springs, shock absorbers, gland seals, sealing rings and valve springs.
Physical and mechanical properties
The mechanical properties of 60S2HA:
- General characteristics:
- Yield strength Re: > 1325 MPa
- Tensile strength Rm: > 1470 MPa
- Elongation A: > 6 %
- Percent reduction of area Z: > 25 %
- Heat-treated condition:
- Hardness HB: < 285
- Diameter cone impression: > 3.6 mm
- Without heat treatment:
- Hardness HB: < 321
- Diameter cone impression: > 3.4 mm
The mechanical properties of 60S2HFA:
- General characteristics:
- Yield strength Re: > 1470 MPa
- Tensile strength Rm: > 1670 MPa
- Elongation A: > 6 %
- Percent reduction of area Z: > 25 %
- Heat-treated condition:
- Hardness HB: < 285
- Diameter cone impression: > 3.6 mm
- Without heat treatment:
- Hardness HB: < 321
- Diameter cone impression: > 3.4 mm
The mechanical properties of 50HGFA:
- General characteristics:
- Yield strength Re: > 1325 MPa
- Tensile strength Rm: > 142 MPa
- Elongation A: > 6 %
- Percent reduction of area Z: > 35 %
- Heat-treated condition:
- Hardness HB: < 285
- Diameter cone impression: > 3.6 mm
- Without heat treatment:
- Hardness HB: < 321
- Diameter cone impression: > 3.4 mm
We deliver this steel alloy as:
- Round bars
- Flat bars
- Forgings
Replacements, equivalents, and other designations:
70S2ChA, 50ChGFA, 60ChFA, 60S2N2A, 60S2G, 60S2ChFA, 60S2ChA, 70S2HA, 50HGFA, 60HFA, 60S2HFA, 60S2HA, 70S2ChA, 70S2KhA, 50KhGFA, 60KhFA, 60S2KhFA, 60S2KhA, 60С2ХА, 60С2ХФА, 60С2Г, 60С2Н2А, 60ХФА,70С2ХА, 50ХГФА.