W2-A Tool Die Steels to ASTM A686-1999

W2-A - Specification & Application

  • ASTM A686-1999 - Carbon tool steel

Carbon tool steel products which include hot or cold finished bar, plate, sheet, rod, wire, or forgings, which are normally fabricated into tools, dies, or fixtures.

Chemical composition(wt.%) of W2-A grade: to ASTM A686-1999

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.85 1.50
Mn 0.10 0.40
P - 0.030
S - 0.030
Si 0.10 0.40
Ni - 0.20
Cr - 0.15
Mo - 0.10
Cu - 0.20
V 0.15 0.35
W - 0.15

W2-A - Detail

T72301

Mechanical properties of grade W2-A ASTM A686-1999

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
672 (≥) 655 (≥) 23 33 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical properties of grade W2-A ASTM A686-1999

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
642 (≥) 247 (≥) 31 13 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 424
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
148 554 222

Equivalent Grade

Equivalent Products

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