PRODUCTGRADEEQUIVALENT STANDARDCHEMICAL COMPOSITION (%)SUPPLY CONDITIONAPPLICATIONTYPE OF APPLICATION
AISIDINJISCSiMnCrMoNiVWOth.
Case-Hardened Steel
1.7147

4820

20MnCr5

0.18-0.19

0.21-0.29

1.160-1.19

1.05-1.11

0.02-0.04

0.09-0.13

P/0.016-0.021, S/0.024-0.028

สภาพอบอ่อน229-285 HBManganese-Chromium alloyed can obtain shocks, good wear resistance suitable for gears, wheels, large pins cylinder rods
1.7131

5115, 5117

16MnCr5

SCM415

0.14-0.19

0.1-0.4

1.0-1.3

0.8-1.0

P/0.035, S/0.035

สภาพอบอ่อน170-210 HBHeat treatable, case hardening for surface hardened steel resistant to traction at the center suitable for gears, wheels, large pins, driver gears
1.6587

4820

18CrNiMo7-6, 17CrNiMo6

0.15-0.21

0.4

0.5-0.9

1.5-1.8

0.25-0.35

1.4-1.7

P/0.025, S/0.035

สภาพอบอ่อน170-210HBChrome-Nickel-Molybdenum alloyed with toughness resistant to heavy loads using high torque suitable for making gears, shafts, sprockets, needle bearings
1.5919

3115

15CrNi6

SNC415

0.14-0.19

0.15-0.4

0.4-0.6

1.4-1.7

1.5-1.7

สภาพอบอ่อน170-210 HBChrome-Nickel alloyed with toughness and has the pulling force in the center suitable for making gears with high stress steering shaft drive and large gear wheels
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