EN31 Round Steel Bars, 100Cr6 Steel Bars, 1.3505, SAE 52100

//EN31 Round Bars, SAE 52100 Steel Round Bars
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  • EN31 Round Bars, bearing Steel Manufacturers, SAE 52100 Steel Bars Manufacturers, Suppliers in India

EN31 Round Bars, SAE 52100 Steel Round Bars


EN31 Round Steel Bars, SAE 52100 Bearing Steel Bars Suppliers!

“Yes, It’s in Stock and Ready to Deliver”

High Quality, Lower Cost But The Best Service in EN31 Round, Flat Bars & Rods

EN31 is a quality high carbon alloy steel which offers a high degree of hardness with compressive strength and abrasion resistance. Metline specialises in the manufacture and supply of EN31 round bars, EN31 flat bars in India, and companies worldwide. EN31 grade steel is also most commonly known as 52100 bearing steel. We are stockholders and suppliers from India, with more than 16 years experience in the supply of EN31 rods, EN31 round steel bars, and EN31 steel flat bars, plates and squares.

  • Buy Cut to Length EN31 Hot Rolled Steel Bars
  • EN31 Rounds Bright Drawn Steel Bars Available for Immediate Deliveries Worldwide
  • EN31 Hexagons Bright Drawn Steel Bars, Made to Custom Sizes

Production, Supply Range for ASTM 52100 Bearing Steel | 1.3505 | 100Cr6 | SUJ2 | EN31 Round Bars

  • Length:3-6 MTR or Custom Lengths
  • Surface: Black, Peeled, or Rough Turned
  • Heat Treatment:air-cooling, normalized, annealed, Q&T
  • Manufacturing/Smelting Process for Steel Bars: EAF+LF+VD

Are you looking to Buy EN31 Round Steel Bars, EN31 Flat Steel Bars or EN31 Steel Plates?

Call us for Best Prices for EN31 Steel Bars, EN31 Steel Rods, SAE52100 Bars – Ready Stock, with Immediate Deliveries Worldwide!

Product Description

“We Provide 100% Replacement Guarantee On Our All Our EN 31 Steel Bars Products” We are professional manufacturer and supplier of alloy steel and carbon steel bars. Our customers can also buy from us all types of stainless steel rods, forgings, stainless steel flanges and cut to size stainless steel plates at best prices. “Our Quality Would Never be Compromised

Our goal is to provide high quality EN31 steel round bars at competitive prices, and top-notch service to customers around the world. We are ISO9001, and CE certified and strictly adhere to the quality specifications.

For all your  questions and enquiries please contact our sales department by dialing the following number:
+919892451458/9833604219 or send an email to sales@metline.in

What is EN 31 or 52100 Bearing Steel?

EN 31 steel is a high carbon chrome alloy steel, with superior hardness, 60-67 on Rockwell hardness scale (Rc) at room temperature and is suitable for operating continually at temperatures up to 120°C. EN 31 steel products are widely used for manufacturing high quality precision ball bearings and roller bearings. EN31 steels exhibit high wear resistance and rolling fatigue strength.

Specifications, Equivalents for EN 31, SAE 52100 Bearing Steel Round Bars, Flat Bars

Relevant Steel Specification of ASTM 52100 Bearing Steel
Country USA German Japan British
Standard ASTM A295 DIN 17230 JIS G4805 BS 970
Grades 52100 100Cr6/1.3505 SUJ2 535A99 / EN31


Chemical Composition of EN31 Steel Round Bars, 52100 Bearing Steel and other Equivalents

Standard Grade C Mn P S Si Ni Cr Cu. Mo.
ASTM A295 52100 0.93-1.05 0.25-0.45 0.025 0.015 0.15-0.35 0.25 1.35-1.60 0.3 0.1
DIN 17230 100Cr6 / 1.3505 0.90-1.05 0.25-0.45 0.03 0.025 0.15-0.35 0.3 1.35-1.65 0.3
JIS G4805 SUJ2 0.95-1.10 0.5 0.025 0.025 0.15-0.35 1.30-1.60
BS 970 535A99/EN31 0.95-1.10 0.40-0.70 0.10-0.35 1.20-1.60


Mechanical Properties of EN31 Steel Round Bars, 52100 Bearing Steel and other Equivalents

Mechanical Properties of ASTM A295 52100 Bearing Steel
Properties Metric Imperial
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Hardness, Brinell
Hardness, Knoop (converted from Rockwell C hardness) 875 875
Hardness, Rockwell C (quenched in oil from 150°C tempered) 62 62
Hardness, Rockwell C (quenched in water from 150°C tempered) 64 64
Hardness, Rockwell C (quenched in oil) 64 64
Hardness, Rockwell C (quenched in water) 66 66
Hardness, Vickers (converted from Rockwell C hardness) 848 848
Machinability (spheroidized annealed and cold drawn. Based on 100 machinability for AISI 1212 steel) 40 40
52100 Steel Physical Properties
Properties Metric Imperial
Density 7.81 g/cm3 0.282 lb/in3
Melting point 1424°C 2595°F
52100 Alloy Steel Thermal Properties
Properties Metric Imperial
Thermal expansion co-efficient (@ 23-280°C/73.4- 36°F, annealed) 11.9 μm/m°C 6.61 μin/in°F
Thermal conductivity (typical steel) 46.6 W/mK 323 BTU in/hr.ft2.°F


Additional Information

Main Carbon Steel Grades

EN-8, EN-9, C-40, C-45, C-55, SAE 1040, SAE 1045 and SAE 1050


50 kg's to Production Qty's

Delivery time

Promptly (Stock) or 10-40 days (Production)




Mill TC EN 10204 3.1, Third Party Inspection, NDT/DT Test Reports

Latest Prices

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