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Home Material GB /T 1221-2007
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Grade 53Cr21Mn9Ni4N
China ISC S35650
Old Grade
Corresponding Standard GB /T 1221-2007
Heat-Resistant Steel Bars
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
53Cr21Mn9Ni4N Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N
Minimum Value 0.48 - 8 - - 20 3.25 0.35
Maximum Value 0.58 0.35 10 0.04 0.03 22 4.5 0.5
53Cr21Mn9Ni4N Mechanical Properties
diameter
d
mm		 Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
d≤25 (solution + aging) ≥885 ≥560 ≥8 ≥302
1 Approximate Comparison Table Austenitic Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
53Cr21Mn9Ni4N
(5Cr21Mn9Ni4N) 		S35650 SUH 35 SUH 35 STR 35 S63008 X53CrMnNiN 21-9 X53CrMnNiN 21-9 1.4871 Z52CMN 21-09 X53CrMnNiN 21-9 1.4871 55Х20Г9AН4 349S52
2 Approximate Comparison Table Valve Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS Commercial Grade UNS SAE ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
53Cr21Mn9Ni4N
(5Cr21Mn9Ni4N) 		S35650 35 SUH 35 STR 35 21-4N S63008 EV8 X53CrMnNiN 21-9 ~ X53CrMnNiN 21-9 1.4871 Z53CMN 21-09Az X53CrMnNiN 21-9 1.4871 55Х20Г9АН4 349S52
3 Approximate Comparison Table Austenitic Stainless Steel
China Japan International Organization for Standardization European Standard
ISC JIS ISO Numerical Grade Numerical Grade
S35650 SUH35 X53CrMnNiN21-9-4 4890-202-09-X 1.4890
53Cr21Mn9Ni4N Corresponding Standards(Same grade name, different standards)
1 GB /T 20878-2007
53Cr21Mn9Ni4N S35650 (5Cr21Mn9Ni4N)
2 GB /T 1221-2007
53Cr21Mn9Ni4N S35650 (5Cr21Mn9Ni4N)
3 GB /T 12773-2021
53Cr21Mn9Ni4N 21-4N
4 GB /T 20878-2024
53Cr21Mn9Ni4N S35650 (5Cr21Mn9Ni4N)

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