T12 - NB /T 47019.3-2011

Grade	T12
Corresponding Standard	NB /T 47019.3-2011 Purchase technical specification for boiler and heater exchanger tubes/pipes Part3: Non-alloy and alloy steel with specifier elevated temperature properties
Classification	Alloy Steel

T12 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^*	Cu ^*	Mo	V ^*
Minimum Value	0.05	0.5	0.3	-	-	1	-	-	0.44	-
Maximum Value	0.15	1	0.6	0.025	0.025	1.5	0.3	0.2	0.65	0.08

T12 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
≥415	≥220	≥22	≥40	≤143HBW；≤170HV；≤85HRB

T12 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!