Tape, strip, sheet 65 - c67s - 1.1231
Structural steel spring-spring. Such steels have high elastic properties. This is achieved by quenching, followed by an average vacation. In addition, such steel has a high limit of endurance and strength.
Percent composition, GOST 14959−79
|0.62 — 0.7||0.17−0.37||0.5 — 0.8||≤0.25||≤0.035||≤0.035||≤0.25||≤0.2|
- Steel is not used for welded structures, is not prone to temper brittleness.
Mechanical properties (temperature 20 ° C)
- sv — Short-term strength limit: 980 MPa
- sT — Proportionality limit (yield strength for permanent deformation): 785 MPa
- d5 — Elongation at break: 10%
- y — Relative narrowing: 35%
Note: Tempering 870 ° C oil, tempering 470 ° C.
Production of springs, springs and other parts, which require increased strength and elastic properties, wear resistance; parts operating under friction in the presence of high static and vibration loads
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