635M15 / EN351 Bright / black 3/4% nickel chromium case hardening steel


BS970: 1955 BS970: 1991 COLOUR CODE DESCRIPTION
EN351635M15orange/whiteBright / black 3/4% nickel chromium case hardening steel


CHEMICAL ANALYSIS
Car0.12 / 0.18
Sil0.10 / 0.40
Mang0.60 / 0.90
Chr0.40 / 0.80
Nick0.70 / 1.10


INTERNATIONAL SPECIFICATION COMPARISON
BRITISH BS 970:1991 635M15
BRITISH BS 970:1955 EN351
GERMAN DIN  
FRENCH AFNOR 
SWEDISH SS 
AMERICAN SAE 
EUROPEAN STEEL NO. 
EUROPEAN STEEL NAME16NiCrS4
EUROPEAN STANDARDEN10277-4


QUICK VIEW SYSTEM
MACHINEABILITY80
WELDABILITYPre / post heat precaution required
HARDENABILITYLow alloy case hardening
SELECTION GUIDE AND USAGE EXAMPLESAfter hardening produces a hard wear resistant core & case strength around 50 t/sq". Levers & shafts.


SIZES.

Size (mm. dia) 26.00