SHANGHAI UNITE STEEL
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Cold drawn&hot rolled&hot forged stainless steel bar 2Cr13/X20Cr13/1.4021, stainless steel bar
Description
This alloy is a general purpose heat treatable chromium steel which is a popular cutlery grade. Martensitic stainless steel.
Applications
Dental and surgical instruments, cutlery, pump shafts, plastic molds and dies, steel balls, and various hand tools, pump components, shafts, turbine blades, pressing dies for tablets, glass and plastics processing tools.
RELATED SPECIFICATIONS:
Germany DIN X20Cr13/1.4021
Great Britain EN X20Cr13
BS 420S29
USA AISI 420 S42010
France AFNOR Z20C13
Sweden SS 2303
Poland PN 2H13
Russia GOST 20KH13
Japan JIS SUS420J1
Chemical Composition (%):
Carbon 0.16-0.25
Silicon 1.00 max
Manganese 1.00 max
Phosphorus 0.035 max
Sulphur 0.030 max
Chromium 12.00-14.00
Nickel 0.60 max
Delivery condition: Cold drawn, hot rolled, hot forged
SIZE RANGE:
Round:6-800mm
SURFACE FINISHES:
Black, Peeled(K12), Cold Drawn, Turned & Polished(H10, H11), Precision Ground(H9, H8)
Test: Ultrasonic test according to SEP 1921-84
Soft Annealing
Heat to 730-810oC, air cooling. Structure is ferrite with spherical carbides.
Hardening
Harden from a temperature of 950-1050oC followed by oil, air quenching.
Tempering
Tempering temperature: 650-750oC. Transformation structure with ferrite.
Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property yield strength, tensile strength, elongation and hardness, forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.
Marking: Heat No. will be cold stamped and Steel grade, diameter mm, length mm, and the manufacturer LOGO and weight kg is painted.
