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Austenitic 38 Application:CNS standard heat resistant steel bars(CNS 9608-1998)
Category Type Steel grade Standard Country
Grades Special Alloy Austenitic 38 CNS China

Chemical composition % of the ladle analysis of grade Austenitic 38

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) B(%)
0.25-0.35 Max 1.00 Max 1.20 0.18-0.25 Max 0.030 19.0-21.0 10.0-12.0 1.80-2.50 0.001-0.010
CNS standard heat resistant steel bars(CNS 9608-1998)
Mechanical properties of grade Austenitic 38
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)
169 (≥) 579 (≥) 43 44 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 442
Physical properties of grade Austenitic 38
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
284 (≥) 956 (≥) 21 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 441
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
232 186 275
Austenitic 38 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

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