EM 31 & SAE 52100(BALL BEARING QUALITY) 1% CARBON CHROMIUM STEEL

Approximate Other Equivalents

IS : 104Cr2/103Cr2Mn70 VISL : M - K150 BASL : B - B2
T105Cr1/T105Cr1Mn6
DIN :100Cr6 AISI : 52100

CHEMISTRY

QUALITY C SI MN CR P & S
EN - 31
&
SAE 52100
0.95 0.15 0.25 0.4 0.025
1.15 0.35 0.45 1.65 MAX

SPECIFIC HEAT TREATMENT

Our Colour Code: GREEN & YELLOW

QUALITY EN - 24 SAE 52100
Forging Temperature 1050 to 850ºC 1050 to 850ºC
Annealing Temperature 750 to 800ºC 750 to 800ºC
Annealed Hardness BHN Max 207 BHN 207 BHN
Hardening Temperature 800 to 820ºC (Water), 830 to 850ºC (Oil) 800 to 820ºC, 830 to 850ºC
Quenching Media Water /Oil Water /Oil
Obtainable Hardness R.C. 63-67 & 63-67 HRC 63-67 & 63-67 HRC
Working Hardness HRC. 61-65 & 61-63 HRC 61-65 & 61-63 HRC
Tempering Temperature 150 to 250ºC 150 to 250ºC
Normalising Temperature ---- ----

Application

Used in manufacture of Ball & Roller Bearing, Connecting Rods, big end Bushes, Lathe Centres & Collets. EN - 31 BB SAE 52100 are also be used as back up Rolls in cold Rolling and Stainless Steels Sheets Rolling Mills. Can also be used for small hardened steel Rolling Mill shear Blades.Instrument Pivots & Spindles. Pillars & Bushes for Die Sets .

List of Standard Size

Round: Ø 16mm - Ø 400mm
Flat: 6x25 - 200x500
Square: 20 - 200mm
Silver Steel(52100): Gr Bass - Q1 to Q25 mm

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Note:

1. Specification & Sizes not mentioned in the Stock List may be Enquired to enable us to offer the same

2. Cutting Facility Available upto 600 MM Dia.