HR50/45 Stainless Steels to BS 1449-1-1.4

HR50/45 - Specification & Application

  • BS 1449-1-1.4 - Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength

Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength

Chemical composition(wt.%) of HR50/45 grade: to BS 1449-1-1.4

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08 0.15
Si - 1.00
Mn - 1.00
P - -
S - 0.020
Cr 18.00 21.00
Ni - remaining
Mo - -
Co - 5.00
Ti 0.20 0.60
Fe - 5.00
Al - -
Cu - 0.50
B - -
Bi - -
Pb - 0.0050
Ag - -

HR50/45 - Detail

Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength

Mechanical properties of grade HR50/45 BS 1449-1-1.4

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)
886 (≥) 936 (≥) 21 44 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical properties of grade HR50/45 BS 1449-1-1.4

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
357 (≥) 371 (≥) 42 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 124
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
646 682 312

Equivalent Products

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