Grade TP 347LN
USA UNS S34751
Corresponding Standard ASTM A376/A376M-2019
Seamless Austenitic Steel Pipe for High-Temperature Service
Classification Austenitic Stainless Steel
TP 347LN Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N Nb More
Minimum Value 0.005 - - - - 17 9 0.06 0.2 Nb(Cb)≥15C
Maximum Value 0.02 1 2 0.045 0.03 19 13 0.1 0.5
TP 347LN Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
≥515 ≥205 (Longitudinal 35, Transverse 25), min

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