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Grade WPNIC
USA UNS N08800
AISI
American Iron and Steel Institute		 800
Corresponding Standard ASTM A403/A403M-2022
Wrought Austenitic Stainless Steel Piping Fittings
Classification Austenitic Stainless Steel
WPNIC Chemical Element Composition Content (%)
Component Fe C Si Mn P S Cr Ni Cu Ti Al
Minimum Value 39.5 - - - - - 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
WPNIC Mechanical Properties
condition Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
%
Pipe Fittings ≥520 ≥205 Standard round specimen, or small specimen, or strip specimen
L0=4D
long: ≥28
tr: ≥20
1 Approximate Comparison Table Corrosion-Resistant Alloy
China Japan South Korea United States Germany United Kingdom
GB ISC JIS KS Commercial Grade UNS DIN EN/DIN W-Nr. BS EN/BS
NS 1101
(NS 111)
(0Cr20Ni32AlTi) 		H 08800
H 01101 		NCF 800
(NCF 2B) 		NCF 800 Incoloy 800 N 08800 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 EN Numerical Grade
NCF800 N08800 X8NiCrAlTi32-21 4876-088-00-1 X8NiCrAlTi32-21 1.4959
1.4876
3 Approximate Comparison Table Austenitic Heat-Resistant Steel
United States International Organization for Standardization European Standard
ASTM UNS ISO EN Numerical Grade
800 N08800 X8NiCrAlTi32-21 X10NiCrAlTi32-21 1.4876

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