STS XM27TB

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Korea KS STSXM27TB Stainless steel for boiler and heat exchanger tubes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STSXM27TB / STS XM27TB

Category	Grade	Standard	Region/Area	Standard Content
Metals	STS XM27TB	KS D 3577	Korea	Stainless steel for boiler and heat exchanger tubes

Chemical composition(mass fraction)(wt.%) of the STS XM27TB

Element	Min	Max	Similar
Ti+Nb+Zr	-	0.8000	-
Si	-	0.4000	-
S	-	0.0200	-
P	-	0.0300	-
N	-	0.0150	-
Mo	0.7500	1.5000	-
Mn	-	0.4000	-
Cr	25.0000	27.5000	-
C	-	0.0100	-

Mechanical Properties of steel grade STS XM27TB

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)
647 (≥)	781 (≥)	33	44	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	342

Physical Properties of steel grade STS XM27TB

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
44	-	-			0.12	-
342	254	-	12.3	322		-
127	-	32	21.2			423	424

Heat Treatment of steel grade STS XM27TB

Heat treated : 1165°C - 1555°C

Technological Curves of steel grade STS XM27TB

No Curve

Cross Reference Table (Equivalent Grade) of STS XM27TB

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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