Hot Rolled / Forged Annealed tool Steel , DIN 1.2363 Air Hardening Tool Steel

Delivery Time:3-5 days
Certification:CE,FCC,MSDS

DIN 1.2363 Round Steel Bar , Cold Work Tool Steel , Mould Steel

◆ Equivalence

AISI / SAE	DIN / W.Nr	JIS	GB
A2	1.2363	SKD12	Cr5Mo1V

◆ Chemical Composition (%)

C	Si	Mn	P	S	Cr	Mo	V
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

◆ Dimensions

	Hot Rolled	Forged
Diameter (mm)	10-130	60-600
Length (mm)	2000-5800	2000-5800

◆ Delivery Condition

EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤235HB,

Black surface or Machined surface (Peeled, Turned, Grinded), UT 100% Passed

◆ Characteristics

1. A kind of air hardening tool steel.

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

◆ Applications

It is usually 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..

◆ 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 hard ness: 63 - 65 HRC

Tempering

Slow heating to tempering temperature immediately after hardening/time in furnace

1hour for each 20 mm of workpiece thickness, but at least 2 hours/cooling in air.

For average hardness figures to be obtained, please refer to the tempering chart.

For certain cases we recommend to reduce tempering temperature and increase

holding time.