Grade A250 Grade T1
Corresponding Standard ASTM A250/A250M-2005(R2014)
Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes
Classification Alloy Steel
A250 Grade T1 Chemical Element Composition Content (%)
Component C Si Mn P S Mo
Minimum Value 0.1 0.1 0.3 - - 0.44
Maximum Value 0.2 0.5 0.8 0.025 0.025 0.65
A250 Grade T1 Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
≥380 ≥205 ≥30

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