07Cr25Ni21NbN

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China GB 07Cr25Ni21NbN 高压锅炉用无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 07Cr25Ni21NbN / 07Cr25Ni21NbN

Category	Grade	Standard	Region/Area	Standard Content
Metals	07Cr25Ni21NbN	GB 5310	China	高压锅炉用无缝钢管

Chemical composition(mass fraction)(wt.%) of the 07Cr25Ni21NbN

Element	Min	Max	Similar
Si	-	0.7500	-
S	-	0.0150	-
P	-	0.0300	-
Ni	19.0000	22.0000	-
Nb	0.2000	0.6000	-
N	0.1500	0.3500	-
Mn	-	2.0000	-
Cr	24.0000	26.0000	-
C	0.0400	0.1000	-

Mechanical Properties of steel grade 07Cr25Ni21NbN

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
879 (≥)	859 (≥)	32	24	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	332

Physical Properties of steel grade 07Cr25Ni21NbN

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
23	-	-			0.41	-
375	372	-	41.3	232		-
386	-	23	44.2			323	312

Heat Treatment of steel grade 07Cr25Ni21NbN

Heat treated : 1157°C - 1992°C

Technological Curves of steel grade 07Cr25Ni21NbN

No Curve

Cross Reference Table (Equivalent Grade) of 07Cr25Ni21NbN

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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