Low alloy tool steel bar AISI 5210

Model Number: ZXL130 Brand Name: Baosteel, TISCO Key Specifications/Special Features: Description52100 is a high carbon, chromium containing low alloy steel that is through hardening and noted in particular for use as bearings.ApplicationsPrincipal applications are those for bearings in rotating machinery. Balls, rollers and rings for rooler bearings, diameter up to 30mm.Chemical Composition (in weight%)C 0.97
Si 0.25
Mn 0.35
Cr 1.50
Ni max.0.30
Others Cu max. 0.30
Physical properties (averagevalues) at ambient temperature
Modulus of elasticity [10³xN/mm²]: 190-210
Density [g/cm³]: 7.83
Thermal conductivity [W/m. K]: 20.0
Electric resistivity [Ohm mm²/m]: 0.65
Specific heat capacity [J/g. K]: 0.46
Soft annealing
Heat to 760-800℃, cool slowly in furnace. This will produce a maximum Brinell hardness of 207.
Stress relieving
Stress relieving to remove machining stresses should be carried out by heating to 650℃, holding for 1hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden froma temperature of 830-870℃, followed by oil quenching. Hardness after quenching is 64 HRC.
Tempering
Tempering temperature: 150-180℃.
Forging
Hot forming temperature: 1200-926℃.
Machinability
Machinability of 52100 alloy is good by conventional methods. A spherodizing anneal at 1200 F before machining will improve the overall machinability of the alloy.
Welding
This is a high carbon alloy typically used in bearing applications where welding is not applicable or appropriate.

Specifications:
Grade: AISI 5210
Standard: DIN, GB, EN, AISI
Diametre: 50-500mm
Certification: ISO
Technical treatment: cold-rolled and hot rolled

Packing and delivery
Packing: standard export seaworthy package or as customers’requirements.
Delivery: 7-20 days after received deposit of T/T.