Aisi Flat Bars, Brand Name : JIN SHA

We are offering aisi d2 flat bars. Quick details grade: cold work die steel standard: jis thickness: 10~620mm
width: 50~1200mm length: 2.5-6.5m place of origin: hubei china (mainland)
brand name: jinsha model number: skd111.2379 application: all kinds of cold stamping mold, cut blade and twisting thread board
technique: forged special use: mold steel surface condition: black surface, milled surface
tolerance for thickness: -0+2.0mm(for milled surface);-0+5.0mm(for black surface) tolerance for width: 0+5.0mm(for milled surface);-0+10.0mm(for black surface) delivery condition: hot rolled forged,annealed
packaging & delivery packaging detail: packed with plastic film, sea worthing packing, others according to customers' requirements
delivery detail: 45 days for forged material, 90 days for rolled material.
specifications1.2379 flats
1.dimension:10~620mmx50~1200mm
2.delivery conditon:annealed, blackmilled surface
3.short delivery time
alloy steel din1.2379 flat bars
chemical composition(%)
c si mn p s cr mo v
1.50-1.60 0.10-0.40 0.15-0.45 ≤0.030 ≤0.030 11.0-12.0 0.60-0.80 0.90-1.10
specialty
high penetration, high rigidity, high endurance, small distortion when quench, possess high rigidity of cr12*210crw12,.good tenacity, adapt to tool mould of complicated form.
use
1. All kinds of cold stamping mold, cut blade and twisting thread board of high endurance and long life
heat treatment
1. Quench: recommend oil of 980-1040°cwind(re-preheat~500 °c -850 °c )hrc64-62
2. tempering: eliminate stress, stabilize framework, (180-200 °c )≥2 hours hrc63-62
3.change of temperature of tempering and hrc rigidity (reference)
4.annealing: 780-800 °c slow cooling
melting process
1. Eaf: electric furnace+lf+vd(optional)
2. Esr: electric furnace+lf+vd+eleroslag remelted(optional)
ut class
according to standard of sep 192184,100% volume, level cc, dd or ee
tolerance on quantity
+-10% per size