Physical Properties

    Annealed Hardened & Tempered
Grade Designation Vickers Hardness HV,
Max.
Yield Stress
N/mm2,
Min.
Tensile
Strength
N/mm2,
Max.
Elongation,
Percent,
Min.
Vickers Hardness HV
Max.
Yield Stress N/mm2,
Min.
Tensile Strength
N/mm2,
Max.
Elongation,
Percent,
Min., Guage Length 5.65
1 45C 8 185

»

270 590 30 350 to 425 1030 1180 to 1420 6
2 55C 6 195
3 65C 6 205
4 70C 6 215
5 75C 6 220
»
290 640 25 350 to 475 1080 1180 to 1570 6
6 80C 6 220
7 85C 6 220
8 98C 6 225 310 690 25 475 to 540 1470 1570 to 1760 6
9 55Si7 240 340 780 20 475 to 570 1470 1570 to 1960 6
10 50Cr4 240 340 780 20 505 to 650 1570 1670 to 2260 5
11 50Cr4V2 240 340 780 20 555 to 670 1760 1880 to 2360 4

 


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