A681 Type H11 T20811 - ASTM A681-2008(R2015)

Grade	A681 Type H11
USA UNS	T20811
AISI American Iron and Steel Institute	H11
Corresponding Standard	ASTM A681-2008(R2015) Standard Specification for Tool Steels Alloy
Classification	Tool Steel

A681 Type H11 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	V	More
Minimum Value	0.33	0.8	0.2	-	-	4.75	1.1	0.3	Ni+Cu≤0.75
Maximum Value	0.43	1.25	0.6	0.03	0.03	5.5	1.6	0.6	Ni+Cu≤0.75

A681 Type H11 Mechanical Properties

	Heat Treatment or Condition	Hardness HBW
Bars, thick plates, thin plates, strips, rods, wires, forgings	Cold Drawing	BHN ≤255
Bars, thick plates, thin plates, strips, rods, wires, forgings	Annealing	BHN ≤229
Bars, thick plates, thin plates, strips, rods, wires, forgings	Heat Treatment	HRC ≥53

1 Approximate Comparison Table Hot Work Tool Steel

China		Japan	United States	International Organization for Standardization
GB	ISC	JIS	ASTM	ISO
4Cr5MoSiV	T23352	SKD 6	H11	X37CrMoV 5-1

2 Approximate Comparison Table Hot-Work Tool Steels

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
4Cr5MoSiV	SKD6	H11	X37CrMoV5-1	X38CrMoV5-1	Z38CDV5	X37CrMoV5-1	1.2343	4KH5MFS	BH11

3 Approximate Comparison Table Cast Iron

China	United States	International Organization for Standardization	Germany		European Standard
GB	SAE	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
H175	H11	JL HBW175 H175	GG170HB	0.6017	EN-GJL-HB175	EN-JL2020

4 Approximate Comparison Table Alloy Tool Steel 2

China	Japan	United States	Germany		France	Russia	United Kingdom
GB	JIS	ASTM	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
4Cr5MoSiV	SK D6	H11	X38CrMoV5 1	1.2343	Z38CDV5	4Х5МФС	BH11

5 Approximate Comparison Table Alloy Tool Steel 3

China

Japan

South Korea

United States

Germany

France

European Standard

Russia

Sweden

United Kingdom

JIS

ASTM/AISI

UNS

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

SS₁₄

BS EN/BS

4Cr5MoSiV1
SM4Cr5MoSiV1

SKD61

STD61

H13

T20813
T20811

Х40CrMoV5-1

1.2344

Z40CDV5
Х40CrMoV5

X40CrMoV5-1
X40CrMoV5-1-1

1.2344

4Х5МФ1С
4KH5MF1S

2214
2242

2344
BH13

A681TypeH11 Corresponding Standards(Same grade name, different standards)

1	ASTM A681-2008(R2015)
	A681 Type H11 T20811 H11
2	ASTM A681-2024
	A681 Type H11 T20811 H11

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!