Product Details

Product Description

hot working die steel 4Cr5MoSiV1(Hot Forged / Steel: Round Bar/Square Bar/Flat Bar/Forging/Module)

1.H13 corresponding to AISI steel H13, is a widely used international air cooling hardening hot work die steel,

2 having a higher thermal strength and hardness, and has good toughness in the temperature conditions, the thermal fatigue properties and wear resistance,

3.Lower austenitizing temperature air quenching, heat deformation small, when the air quenching the small oxide tendencies, can resist the erosion of the role of the molten aluminum.

4.The steel is widely used in the manufacture of hot extrusion die, mandrel, forging hammer die, die forging presses, forging machine die-casting mold mold as well as aluminum, copper and its alloys.

5. Chemical composition:

Standard	Steel name	C	Si	Mn	Cr	Mo	V	P	S	Ni
GB	4Cr5MoSiV1	0.32-0.45	0.80-1.20	0.20-0.50	4.75-5.50	1.10-1.75	0.80-1.20	≤0.030	≤0.030	------
AISI	H13	0.32-0.45	0.80-1.20	0.20-0.50	4.75-5.50	1.10-1.75	0.80-1.20	≤0.030	≤0.030	------
JIS	SKD61	0.32-0.42	0.80-1.20	≤0.50	4.50-5.50	1.00-1.50	0.80-1.20	≤0.030	≤0.030	------
ASSAB	8407	0.39	1.00	0.40	5.20	1.40	0.90	≤0.030	≤0.030	------
DAIDO STEEL	DHA1	0.32-0.42	0.80-1.20	≤0.50	4.50-5.50	1.00-1.50	0.80-1.20	≤0.030	≤0.030	------
Hitachi	DAC	0.39	1.00	0.40	5.15	1.40	0.80	≤0.030	≤0.010	------
Groditzer Stahlwerke GmbH	GSW-2244	0.37-0.43	0.90-1.20	0.30-0.50	4.80-5.50	1.20-1.50	0.90-1.10	≤0.030	≤0.030	------
Bohter	W302	0.37-0.43	0.90-1.20	0.30-0.50	4.80-5.50	1.20-1.50	0.90-1.10	≤0.030	≤0.030	------
DIN	X40CrMoV5-1 W-Nr. 1.2344	0.37-0.42	0.90-1.20	0.30-0.50	4.80-5.50	1.20-1.50	0.90-1.10	≤0.030	≤0.030	------
BS	BH13	0.32-0.42	0.85-1.15	≤0.40	4.75-5.25	1.25-1.75	0.90-1.10	--------	--------	≤0.40

6. H13 / 1.2344Critical temperature

Critical point	Ac₁	Ac₃	Ar₁	Ar₃	M_s	M_F
Temperature(Approximation)/°c	860	915	775	815	340	215

7. Forging process

Item

Heating temperature/°C

start forging temperature/°C

final forging temperature/°C

cooling

Steel ingot

1140-1180

1100-1150

850-900

Slow cooling (pitorfurnace cooling)

Steel billet

1120-1150

1050-1100

850-900

Slow cooling (pitorfurnace cooling)

6. Features&Applications: good macro and microstructure, High wear resistance, good toughness and red hardness,good machinability. Mainly Used for Hot forming tools, Hot forging dies, Pressure casting tools,Hot extrusion dies for aluminium.

7.Surface condition Round bar : Black/ Turned / Peeled / Grinding

Steel plate : Black / Milling / Machined

8. Annealed hardness: ≤229HB

9. Inspection : 100% UT acco to DIN SEP1921 D/d or E/e