410S21 720 Stainless Steels to BS 1506

410S21 720 - Specification & Application

  • BS 1506 - Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications

Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications

Chemical composition(wt.%) of 410S21 720 grade: to BS 1506

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.09 0.15
Si - 1.00
Mn - 1.00
P - 0.04
S - 0.03
Cr 11.50 13.50
Mo - -
Ni - 1.00

410S21 720 - Detail

Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications

Mechanical properties of grade 410S21 720 BS 1506

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)
976 (≥) 961 (≥) 33 41 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical properties of grade 410S21 720 BS 1506

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
856 (≥) 774 (≥) 42 12 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 341
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
514 149 766

Equivalent Products

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