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Grade 800H
USA UNS N08810
Corresponding Standard ASTM A213/A213M-2019
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
Classification Austenitic Stainless Steel
800H Chemical Element Composition Content (%)
Component Fe ① C Si Mn P S Cr Ni Cu Ti Al
Minimum Value 39.5 0.05 - - - - 19 30 - 0.15 0.15
Maximum Value - 0.1 1 1.5 0.045 0.015 23 35 0.75 0.6 0.6
800H Mechanical Properties
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
≥450 ≥170 ≥30 ≤192
1 Approximate Comparison Table Corrosion-Resistant Alloy
China United States Germany United Kingdom
GB ISC Commercial Grade UNS DIN EN/DIN W-Nr. BS EN/BS
NS 1102
(NS 112)
(1Cr20Ni32AlTi) 		H 08810
H 01102 		Incoloy 800H N 08810 X10NiCrAlTi 32-20 1.4876 NA 15
2 Approximate Comparison Table Austenitic Stainless Steel
Japan United States International Organization for Standardization European Standard
JIS UNS ISO Numerical Grade Numerical Grade
NCF800H N08810 X7NiCrAlTi33-21 4959-088-10-U 1.4959
3 Approximate Comparison Table Corrosion-Resistant Alloy
China United States Germany United Kingdom
GB Commercial Grade UNS DIN EN/DIN W-Nr. BS EN/BS
NS112 Incoloy 800H N08810 X5NiCrAlTi31-20 1.4958 NA15(H)
800H Corresponding Standards(Same grade name, different standards)
1 ASTM A240/240M-2018
800H N08810
2 ASTM A276/A276M-2017
800H N08810
3 ASTM A213/A213M-2019
800H N08810
4 ASTM A688/A688M-2018
800H N08810
5 ASTM A240/A240M-2020
800H N08810
6 ASTM A959-2019
800H N08810
7 ASTM A249/A249M-2018
800H N08810
8 ASTM A479/A479M-2018
800H N08810
9 ASTM A403/A403M-2022
800H WPNIC10 N08810

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