DIN 100Cr6 Bearing Steel

DIN 100Cr6 bearing steel is a high quality Alloy Bearing steel, It belong to the high quality high carbon, alloy chromium,manganese  steel. 100Cr6 Oil Quenched & Tempered Hardenss is 28-34 HRC. DIN 100Cr6 steel Annealing delivery hardenss less than 250HB.

DIN 100Cr6 Alloy bearing steel properties is a chromium,manganese alloy steel specification. 100Cr6 is equivalent to AISI 52100, GB GCr15. Most applications can replace each others.

Available Types & Range

Form of Supply Size(mm) Length(mm)
Round bar Φ 16 -Φ 150 Standard or As your request
Forged Rounds Φ 160  – Φ 300 Standard or As your request
Forged/ Flats Thickness : 12 – 150
Width: 25 – 400		 Standard or As your request

Chemical Composition & Technical Specification -100Cr6

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 0.30 0.10
DIN 17230 100Cr6/1.3505 0.90-1.05 0.25-0.45 0.030 0.025 0.15-0.35 0.30 1.35-1.65 0.30 –
JIS G4805 SUJ2 0.95-1.10 0.50 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

The mechanical properties of annealed DIN 100Cr6 bearing steel (typical for steel) are outlined in the table below:

Tensile Yield Bulk modulus Shear modulus Poisson’s ratio Thermal conductivity
MPa Mpa Gpa Gpa  W/mK
520 415 Min 140 80 0.27-0.30 46.6

Heat treatment Related

  • Annealing of 100Cr6 Alloy bearing steel

Slowly heated to 790-810 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. Different annealing ways will get different hardness.The 100Cr6 bearing steel will get Hardness MAX 248 HB （Brinell hardness）.

  • Quenching and temperature of 100Cr6 Alloy bearing steel

Heated slowly to 860°C, Then quenching by oil get 62 to 66 HRc hardness. High temperature tempering: 650-700℃，cool in air, get hardness 22 to 30HRC. Low temperature tempering: 150-170 ℃， Cool  in ari, get 61-66HRC hardness.

  • Hot work and cold work of 100Cr6 Alloy bearing steel

Din 100Cr6 steel can hot worked at 205 to 538°C, 100Cr6 Bearing steel can be cold worked using conventional techniques in the annealed or normalized conditions.

Applications

DIN 100Cr6 steel is widely used for a variety of applications in the used to the bearings in rotating machinery. Typical applications such as valve bodies, pumps and fittings, the high load of wheel, bolts, double-headed bolts, gears, internal combustion engine. Electric locomotives, machine tools, tractors, steel rolling equipment, boring machine, railway vehicle, and mining machinery transmission shaft on the steel ball, roller and shaft sleeve, etc.