AISI H-13

Description

DIN 1.2344 tool steel (also known as AISI H13 steel or just H13) is a tool steelgrade standardised for hot working. The main feature of this grade is the combination of alloyed elements of chromium, molybdenum and vanadium, Cr-Mo-V, which provides a high wear resistance to thermal shock.



Equivalent Grades

American German Japanese China Poland
  (W.Nr) (DIN)      
AISI H-13 1.2344GX40CrMoV5-1SKD-614Cr5MoSiV1L40H5MF/WCLV

Chemical Composition (AISI H-13)

  C Si Mn P S Cr Mo V W Co Ni
AISI H-13 0.32- 0.420.8 -1.2MAX -0.50MAX -0.030MAX -0.0304.5 -5.51- 1.50.8 -1.2

Properties

1.High Toughness

2.Good Wear Resistance

3.High Strength at Elevated Temperature

4.Fine Grain Size with High Toughness

5.High Cleanliness


Applications

1. Die and container for extrusion

2.Forming Die Die for Die-Casting

3.Tool for manufacture of screws and nuts

4.Ejector Pins

5.Tool Holders


Heat Treatment

  1. Annealing—Heating slowly and uniformly to 800~850℃, furnace cooling to 600℃ at a rate 10~20℃/h. Hardness HB 229 max
  2. Stress Relieving — 650~700℃, furnace cooling.
  3. Hardening— Preheating (1): Warming to approx. 550~600℃, holding 30 minutes per 25 mm.                                                                                                                                                       Preheating (2): Warming to approx. 800~850℃, holding 30 minutes per 25 mm.
  4. Austenitizing: Heating to approx. 1000~1050℃, holding 30 minutes per 25 mm.                                                                                                                                                                                             Quenchant: By oil or air.                                                                                                                                                                                                                                                                      Tempering—550~650℃, holding 60 minutes per 25 mm, air cooling. Double tempering.
Tempreing Curve: