Cold work tool steel

DIN 1.2363 / AISI A2 Tool Steel

DIN 1.2363 / AISI A2 Tool Steel
DIN 1.2363 / AISI A2 Tool Steel
DIN 1.2363 / AISI A2 Tool Steel
DIN 1.2363 / AISI A2 Tool Steel
DIN 1.2363 / AISI A2 Tool Steel

Description

Reviews

DIN 1.2363 / AISI A2 Cold Work Tool Steel

DIN 1.2363 / AISI A2 Cold Work Tool Steel is used for making cutting tools (dies and punches), blanking and punching tools, thread rolling dies, shear blades, trim dies, forming dies, gauges, stamping dies etc..

Dimensions
Round: dia.10-400 mm
Flat: 6-120 x 40-810 mm
Block: 80-350 x 100-700 mm
Delivery Condition
EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Black surface or Machined surface, UT SEP1921 Class3 D/d
Equivalence
AISI / SAE DIN / W.Nr JIS GB
A2 1.2363 SKD12 Cr5Mo1V
Chemical Composition(%)
Steel Grade C Si Mn P S Cr Mo V
1.2363 0.95-1.05 0.10-0.40 0.40-0.80 ≤ 0.030 ≤ 0.030 4.80-5.50 0.90-1.20 0.15-0.35
A2 0.95-1.05 0.10-0.50 0.40-1.00 ≤ 0.030 ≤ 0.030 4.75-5.50 0.90-1.40 0.15-0.50
Characteristics

1. A kind of air hardening tool steel.

2. Good toughness with medium wear resistance and relatively easy to machine.

Heat Treatment

Annealing

800 to 850°C

Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C, further cooling in air.

Hardness after annealing: max. 235 HB.

 

Stress relieving

Approx. 650°C

Slow cooling in furnace. Intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1 - 2 hours.

 

Hardening

950 to 980°C

Oil, salt bath (200 to 250°C or 500 to 550°C), air blast, still air. Tools of intricate shape or with sharp edges should preferably be hardened in air or salt bath. Holding time after temperature equalization:15 to 30 minutes. Obtainable hardness: 63 - 65 HRC

 

Tempering

Slow heating to tempering temperature immediately after hardening/time in furnace 1 hour for each 20 mm of workpiece thickness, but at least 2 hours/cooling in air. For certain cases we recommend to reduce tempering temperature and increase holding time.

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