SHANGHAI UNITE STEEL
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X46Cr13/4Cr13/40Cr13/X40Cr13/1.2083/420 stainless steel round bar, stainless steel bar
Applications
Moulds for corrosive plastic materials such as PVC, recycled polymers etc., moulds for chemically aggressive plastics and plastics containing abrasive fillers, mould inserts, dies and gauges for PVC extrusions, screws and barrels for extruders, moulds for automotive, food, medical and optical industry such as spectacles, compact discs, lenses.
RELATED SPECIFICATIONS:
Germany DIN X40Cr13
Wr.N 1.2083
USA ASTM 420
France AFNOR Z40C14
Russia GOST 40Ch13
Japan JIS SUS420/420J2
Chemical Composition (%):
Carbon 0.36-0.45
Silicon 0.60 max
Manganese 0.80 max
Phosphorus 0.035 max
Sulphur 0.030 max
Chromium 12.50-14.50
Nickel 0.60 max
Process: EAF+LF+VOD+Forged Treatment(optional)
SIZE RANGE:
Round:
Hot Rolled: 10-80mm, Hot Forged: 50mm-1500mm
Flat:
Hot forged: Thickness:50-600mm Width: up to 1600mm
SURFACE FINISHES:
Black, Turned & Grinded
Test: Ultrasonic test according to SEP 1921-84 C/c
Heat Treatment
ANNEALING: heat to750-800°C, with hold at minimum rate for 3 hours;
Furnace cooling.
Stress relieving:
To be carried out after machining and before the final heat treatment,
-Heating to600-650°C , for 2 hours ;
Hardening ;
-preheating to 600-700°C;
-Austenitizing at 990-1040°C;
-Cooling in fluid oil, thermal bath at 500-550°C and finally in oil,considering the steel shape and size.
Quenched hardness52-56HRC
Tempering:
To be carried out after the hardening according to the required hardness; at 170-270°C in order to match hardness and resistance to corrosion; permanence for at least 2 hours;
Tempering must be repeatedat least twice at a temperature 30°C lower than the previous. Cooling in air.
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.