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Grade SUH660
Corresponding Standard JIS G 4312-2019
Heat-resistant steel plate, sheet and strip
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
SUH660 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo Ti V B Al
Minimum Value - - - - - 13.5 24 1 1.9 0.1 0.001 -
Maximum Value 0.08 1 2 0.04 0.03 16 27 1.5 2.35 0.5 0.01 0.35
SUH660 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
Plates, strips Solution Heat Treatment (S) ≤730 - ≥25 ≤192
Plates, strips Aging (H) ≥900 ≥590 ≥15 ≥248
1 Approximate Comparison Table Heat-Resistant Stainless Steel
China Taiwan, China Japan South Korea United States Germany United Kingdom
GB CNS JIS KS ASTM UNS DIN EN/DIN W-Nr. BS EN/BS
06Cr15Ni25Ti2MoAlVB
(0Cr15Ni25Ti2MoAlVB) 		SUH 660 SUH 660 STR 660 660 S66286 X5NiCrTi 26-15 1.4980 286S31
2 Approximate Comparison Table Deformed High-Temperature Alloy
China Japan United States Germany European Standard United Kingdom
GB JIS Commercial Grade UNS DIN EN/DIN W-Nr. EN Numerical Grade BS EN/BS
GH2132 SUH660 A286 S66286 X6NiCrTiMoVB25-15-2 1.4980 X6NiCrTiMoVB25-15-2 1.4980 X6NiCrTiMoVB25-15-2
3 Approximate Comparison Table Stainless Steels for Cold Heading and Cold Extruding
China Japan United States International Organization for Standardization European Standard
GB ISC JIS ASTM/AISI UNS ISO Numerical Grade EN Numerical Grade
06Cr15Ni25Ti2MoAlVB
(0Cr15Ni25Ti2MoAlVB) 		S51525 SUH660 660 S66286 X6NiCrTiMoVB25-15-2 4980-662-86-X X6NiCrTiMoVB25-15-2 1.4980
SUH660 Corresponding Standards(Same grade name, different standards)
1 JIS G 4311-1991
SUH 660
2 JIS G 4315-2000
SUH 660
3 JIS G 4311-2019
SUH660
4 JIS G 4312-2019
SUH660

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