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Grade 317LMN
USA UNS S31726
Corresponding Standard ASTM A959-2004
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Austenitic Stainless Steel
317LMN Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N
Minimum Value - - - - - 17 13.5 4 0.1
Maximum Value 0.03 1 2 0.045 0.03 20 17.5 5 0.2
1 Approximate Comparison Table Austenitic Stainless Steel
China United States International Organization for Standardization European Standard
GB ISC AISI UNS ISO Numerical Grade EN Numerical Grade
022Cr19Ni16Mo5N S31723 317LMN S31726 X2CrNiMoN17-13-5
X2CrNiMoN 18-15-5 		4439-317-26-E
4483-317-26-I 		X2CrNiMoN17-13-5 1.4439
(1.4483)
2 Approximate Comparison Table Austenitic Stainless Steel
United States France European Standard
ASTM UNS NF EN/NF EN Numerical Grade
317LMN S31726 Z3CND18-14-05Az X2CrNiMoN17-13-5 1.4439
317LMN Corresponding Standards(Same grade name, different standards)
1 ASTM A959-2004
317LMN S31726
2 ASTM A240/240M-2018
317LMN S31726
3 ASTM A240/A240M-2020
317LMN S31726
4 ASTM A959-2019
317LMN S31726
5 ASTM A403/A403M-2022
317LMN WPS31726 S31726
6 ASME SA-240/SA-240M-2023
317LMN S31726

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