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Chemical composition % of the ladle analysis of grade Z53CMNNb21-09-02Az

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) N(%) Nb(%)
0.48-0.58 Max 0.25 8.00-10.0 Max 0.040 Max 0.030 20.0-22.0 3.25-4.50 0.38-0.55 1.70-2.30
Z53CMNNb21-09-02Az
Mechanical properties of grade Z53CMNNb21-09-02Az
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)
391 (≥) 358 (≥) 43 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 211
Physical properties of grade Z53CMNNb21-09-02Az
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
385 (≥) 932 (≥) 11 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
363 322 476
Z53CMNNb21-09-02Az 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
Z53CMNNb21-09-02Az
Valve steels and alloys for internal combustion engines

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