A 307 Grade B Stainless Steels to A 307 (2012)

A 307 Grade B - Specification & Application

  • A 307 (2012) - Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

Chemical composition(wt.%) of A 307 Grade B grade: to A 307 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 1.00
Mn 3.75 4.75
P - 0.045
S - 0.03
Ni 9.00 10.50
Cr 19.00 22.00
Al - -
Cu - -
Ti - -
Fe - -
N - -
Mo - -
V - -

A 307 Grade B - Detail

Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

Mechanical properties of grade A 307 Grade B A 307 (2012)

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)
472 (≥) 936 (≥) 13 22 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical properties of grade A 307 Grade B A 307 (2012)

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
961 (≥) 153 (≥) 13 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
429 272 398
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