65S2WA, 65C2BA - spring steel according to PN H-84035, GOST 14959
Table of content:
| Standard | Grade | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical composition % | |||||||||||||||
| C: | Si; | Mn: | P: | S: | Cr: | Ni: | Cu: | W: | Al: | ||||||
| PN | 65S2WA | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.7-1.0 | <0,035 | <0,030 | <0,3 | <0,4 | <0,2 | 0.8-1.2 | - | ||||||
| GOST | 65S2VA - 65C2BА | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.7-1.0 | <0,025 | <0,025 | <0,3 | <0.25 | <0,2 | 0.8-1.2 | - | ||||||
| GOST | 65S2VA-Sh - 65C2BА-Ш | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.3-1.0 | <0,020 | <0,015 | <0,4 | <0,4 | <0,4 | 0.8-1.2 | 0.02-0.05 | ||||||
| GOST | 65S2VA-VD - 65C2BА-BД | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.3-1.0 | <0,020 | <0,015 | <0,4 | <0,4 | <0,4 | 0.8-1.2 | 0.02-0.05 | ||||||
| GOST | 65S2GVA - 65C2ГBА | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.3-1.0 | <0,025 | <0,025 | <0,4 | <0,4 | <0,2 | 0.8-1.2 | 0.02-0.05 | ||||||
| GOST | 65S2GVA-Sh - 65C2ГBA-Ш | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.3-1.0 | <0,020 | <0,015 | <0,4 | <0,4 | <0,2 | 0.8-1.2 | 0.02-0.05 | ||||||
| GOST | 65S2GVA-VD - 65C2ГBA-ВД | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.3-1.0 | <0,020 | <0,015 | <0,4 | <0,4 | <0,2 | 0.8-1.2 | 0.02-0.05 | ||||||
| STAS | 652SW | ||||||||||||||
| 0.61-0.69 | 1.5-2.0 | 0.7-1.0 | <0,025 | <0,025 | <0,3 | <0,25 | <0,2 | 0.8-1.2 | |||||||
65S2WA – description
Steel used for loaded springs and torsion shafts in the automotive industry. Toughening steel with quite high hardenability.
Limited weldability. Requires preheating before welding. It is not resistant to any corrosive environment, including air.
65S2WA - Mechanical and Physical Properties
Physical properties in ambient temperature:
- Density: 7,76 g/cm3
- Linear expansion coefficient: 10,5 * 10-6 K-1
Mechanical properties of 65S2WA steel:
- Round bars:
- Heat-treated:
- Yield strength Re: > 1665 MPa
- Tensile strength Rm: > 1860 MPa
- Elongation A: > 5 %
- Percent reduction of area Z: > 20 %
- Hardness: < 285 HB
- Diameter cone impression: > 3,6 mm
- Without heat-treatment:
- Yield strength Re: > 1665 MPa
- Tensile strength Rm: > 1860 MPa
- Elongation A: > 5 %
- Percent reduction of area Z: > 20 %
- Hardness: < 321 HB
- Diameter cone impression: > 3,4 mm
- Heat-treated:
- Wire for cold-coiling spring:
- Tensile strength Rm: < 1030 MPa
- Strip:
- Annealed:
- Tensile strength Rm: < 880 MPa
- Elongation A: > 8 MPa
- Cold-worked:
- Tensile strength Rm: 780-1180 MPa
- Annealed:
- Helical springs:
- General:
- Hardness: 40,0-46,5 HRC
- Hardness: 375-444 HB
- Spring hardening:
- Hardness: 42-49 HRC
- General:
Heat treatment and working
Recommended working and heat treatment parameters for 65S2WA alloy:
- Forging: 1180-800 °C
- Rolling: 1230-840 °C
- Quenching: 835-865 °C / o
- Tempering: 370-470 °C
- Normalizing annealing: 840-860 °C
- Soft annealing: 640-680 °C
We deliver this steel alloy as:
Replacements, equivalents and other designations:
65S2WA, 65S2GVA, 65S2GVA-Sh, 65S2GVA-VD, 65S2VA, 65SaVA-Sh, 65S2VA-VD, 652SW, 65С2ВА, 65С2ВА-Ш, 65С2ВА-ВД, 65С2ГВА, 65С2ГВА-Ш, 65С2ГВА-ВД