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MATERIAL SPECIFICATIONS
DIN EN 10084 (1998), DIN 17210 (1986)
CHEMICAL COMPOSITION (WEIGHT %)
C (ï¼…): 0.15 ~ 0.21
Si (%): ≤ 0.40
Mn (ï¼…): 0.50 ~ 0.90
P (%)≤: 0.025
S (%)≤: 0.015
Cr (ï¼…): 1.50 ~ 1.80
Mo (ï¼…): 0.25 ~ 0.35
Ni (ï¼…): 1.40 ~ 1.70
Other (%): Al ≤0.05, Cu ≤0.30
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1150~850
Heat treatment temperature /℃| annealing: 650~700
Heat treatment temperature /℃|carburization: 880~980
Heat treatment temperature /℃|quenchingâ… (center): 830~870
Heat treatment temperature /℃|quenchingⅡ(surface): 780~820, Oil
Heat treatment temperature /℃|tempering: 150~200
HBW≤: 229
|size /mm: φ11
TS, |σb/MPa: 1180~1420
YS, |σs≥/MPa: 835
EL, |δ5(%)≥: 7.0
RA, |ψ(%)≥: 30
Impact, |AKV/J 41
|size /mm: φ30
TS, |σb/MPa: 1080~1330
YS, |σs≥/MPa: 785
EL, |δ5(%)≥: 8.0
RA, |ψ(%)≥: 35.0
Impact, |AKV/J: 41
|size /mm: φ63
TS, |σb/MPa: 980~1270
YS, |σs≥/MPa: 685
EL, |δ5(%)≥: 8.0
RA, |ψ(%)≥: 35.0
Impact, |AKV/J: -