H11 / 1.2343 Hot Work Tool Steel Plates / Bars / Sheet / Forgings

H11 / 1.2343 Hot Work Tool Steel

Deep hardening response. It can be air hardened to full working hardness in section sizes up to 150mm. Good combination of toughness, hardness and wear resistance in hot. Resistance to softening and to cracking. Tools canbe water cooled. Following NADCA standard.

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Product Details

Chemical Composition (%)

Standard	Steel Grade	C	Si	Mn	P	S	Cr	Mo	V	W
DIN	1.2343	0.36-0.42	0.90-1.20	0.30-0.50	0.030	0.030	4.80-5.80	1.10-1.40	0.25-0.50	-
ASTM	H11	0.33-0.45	0.80-1.20	0.20-0.50	0.030	0.030	4.75-5.50	1.10-1.60	030-0.60	-
GB	4Cr5MoSiV	0.33-0.43	0.80-1.20	0.20-.50	0.030	0.030	4.75-5.50	1.10-1.60	0.30-0.60	-

Specification

Round bar	Diameter	Length	-
	Forged round bar: φ50~450	2000~6000	-
	Rolled round bar: φ10~80	2000~6000	-
Flat bar	Thickness(mm)	Width(mm)	Length(mm)
	Forged plate: 20~300	50~710	2000~6000
	Rolled plate: 10~65	155~610	2000~6000

DIN	AISI	JIS	GB
1.2343	H11	SKD6	4Cr5MoSiV

Chemical Composition (DIN 17350)

C	Si	Mn	P≤	S≤	Cr	Mo	V
0.36	0.90	0.30	0.030	0.030	4.80	1.10	0.25
0.42	1.20	0.50	0.030	0.030	5.80	1.40	0.50

Steel Properties

Applications

Tools with a broad range of working hardness up to tool working temp. 500 degree. Tools for hot forging of light metals. Pressure die casting tools, dies, mandrels, punchers, knives, and moulds.

Heat Treatment

Soft Annealing(℃)	Cooling	Hardness(HB)	Hardening(℃)	In	Hardness(HRC)
800-840	Furnace	Max.229	1010-1040	In air, oil, thermal bath 450-550℃	50-56 HRC

Tempering(℃)	100	200	300	400	450	500	550	600	650	700
HRC	53	52	52	52	52	54	52	48	38	30
N/mm²	1845	1790	1790	1790	1790	1910	1790	1570	1200	970