SUH21 Stainless Steels

SUH21 - Specification & Application

CNS standard heat resistant steel plate of the steel grade and chemical composition

Chemical composition(wt.%) of SUH21 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Si - 1.50
Mn - 1.00
P - 0.040
S - 0.030
Cr 17.00 21.00
Ni - 0.60
Mo - -
Al 2.00 4.00

SUH21 - Detail

CNS standard heat resistant steel plate of the steel grade and chemical composition

Mechanical properties of grade SUH21

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)
615 (≥) 247 (≥) 43 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical properties of grade SUH21

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
734 (≥) 791 (≥) 41 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 223
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
223 443 893

Equivalent Grade

Equivalent Products

We can customize the production of SUH21 grade, contact us for the best solution.
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