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Chemical composition % of the ladle analysis of grade 15X18H12C4TЮ

0.12-0.17 3.80-4.50 0.50-1.00 Max 0.035 Max 0.030 17.0-19.0 11.0-13.0 Max 0.30 Max 0.20 0.13-0.35 0.40-0.70
15X18H12C4TЮ
Mechanical properties of grade 15X18H12C4TЮ
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)
316 (≥) 569 (≥) 44 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
Physical properties of grade 15X18H12C4TЮ
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
749 (≥) 144 (≥) 44 32 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
395 835 444
15X18H12C4TЮ 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
15X18H12C4TЮ
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