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A681 H21

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America ASTM A681H21 Tool Steels Alloy and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A681H21 / A681 H21
Category Grade Standard Region/Area Standard Content
Metals A681 H21 ASTM A681 America Tool Steels Alloy

Chemical composition(mass fraction)(wt.%) of the A681 H21

Element Min Max Similar
W 8.5000 10.0000 -
V 0.3000 0.6000 -
Cr 3.0000 3.7500 -
P - 0.0300 -
S - 0.0300 -
Mn 0.1500 0.4000 -
Si 0.1500 0.5000 -
C 0.2600 0.3600 -
W 8.5000 10.0000 -
V 0.3000 0.6000 -
Si 0.1500 0.5000 -
S - 0.0300 -
P - 0.0300 -
Ni+Cu - 0.7500 -
Mn 0.1500 0.4000 -
Cr 3.0000 3.7500 -
C 0.2600 0.3600 -

Mechanical Properties of steel grade A681 H21

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
959 (≥) 953 (≥) 21 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade A681 H21

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
34 - -     0.32 -  
633 682 - 12.3 332   -  
656 - 12 44.2   411 133

Heat Treatment of steel grade A681 H21

Heat treated : 1181°C - 1381°C

Technological Curves of steel grade A681 H21

Cross Reference Table (Equivalent Grade) of A681 H21

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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