815M17 / EN353 Bright / black 1.1/4% nickel chromium case hardening steel


BS970: 1955 BS970: 1991 COLOUR CODE DESCRIPTION
EN353815M17orange/greenBright / black 1.1/4% nickel chromium case hardening steel


CHEMICAL ANALYSIS
Car0.14 / 0.20
Sil0.10 / 0.40
Mang0.60 / 0.90
Chr0.80 / 1.20
Moly0.10 / 0.20
Nick1.20 /1.70


INTERNATIONAL SPECIFICATION COMPARISON
BRITISH BS 970:1991 815M17
BRITISH BS 970:1955 EN353
GERMAN DIN 20NiCrMo5
FRENCH AFNOR20NCD5
SWEDISH SS2523
AMERICAN SAE 
EUROPEAN STEEL NO. 
EUROPEAN STEEL NAME17NiCrMoS6-4
EUROPEAN STANDARDEN10277-4


QUICK VIEW SYSTEM
MACHINEABILITY75
WELDABILITYPre / post heat precaution required
HARDENABILITYLow alloy case hardening
SELECTION GUIDE AND USAGE EXAMPLESAs EN352 but higher strength. Shafts, pinions, and clutch plates


SIZES.

Size (ins. dia) 1.5/16