T72301 Tool Die Steels to ASTM A686-1999

T72301 - 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 T72301 grade: to ASTM A686-1999

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.70 1.50
Si 0.10 0.40
Mn 0.10 0.40
P - 0.030
S - 0.030
Cr - 0.15
Ni - 0.20
Mo - 0.10
Cu - 0.20
V - 0.10
W - 0.15

T72301 - Detail

T72301

Mechanical properties of grade T72301 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)
326 (≥) 539 (≥) 14 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical properties of grade T72301 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
376 (≥) 737 (≥) 12 43 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 233
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
541 681 185

Equivalent Grade

Equivalent Products

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