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Grade 321
Corresponding Standard Q/RP 007-2018
Stainless Steel Wire Rod
Classification Austenitic Stainless Steel
321 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu N More
Minimum Value - - - - - 17 9 - - Ti: 5(C+N)~0.7
Maximum Value 0.08 1 2 0.045 0.015 19 12 0.75 0.05
321 Mechanical Properties
delivery condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
%
Offline solution annealing + pickling 1010℃ ~ 1100℃ Rapid Cooling ≤680 ≥40 ≥65
Hot-rolled + pickled - ≤730 ≥40 ≥65
321 Corresponding Standards(Same grade name, different standards)
1 GB /T 20878-2007
321 06Cr18Ni11Ti S32168 (0Cr18Ni10Ti)
2 ASTM A959-2004
321 S32100
3 GB /T 1221-2007
321 06Cr18Ni11Ti S32168 (0Cr18Ni10Ti)
4 ASTM A193/A193M-2001
321 A193 B8T Class 1 S32100
5 ASTM A 276-2006
321 S32100
6 ASTM A240/240M-2018
321 S32100
7 SAE J405-1998
321 S32100
8 GB /T 1220-2007
321 06Cr18Ni11Ti S32168 (0Cr18Ni10Ti)
9 GB /T 4240-2019
321 06Cr18Ni11Ti S32168 (0Cr18Ni10Ti)
10 GB /T 4232-2019
321 ML06Cr18Ni11Ti S32168
11 SAE J467b-1956(R1968)
321
12 ASTM A276/A276M-2017
321 S32100
13 ASTM A193/A193M-2019
321 A193 B8T Class 1 S32100
14 ASTM A320/A320M-2018
321 A320 B8T Class 1 S32100
15 ASTM A473-2018
321 S32100
16 SAE J405-2018
321 S32100
17 ASTM A313/A313M-2018
321 S32100
18 ASTM A240/A240M-2020
321 S32100
19 ASTM A193/A193M-2020
321 A193 B8T Class 1 S32100
20 ASTM A959-2019
321 S32100
21 ASTM A320/A320M-2021
321 A320 B8T Class 1 S32100
22 Q/BQB 4302-2009
321 SUS 321
23 ASTM A479/A479M-2018
321 S32100
24 ASTM A194/A194M-2023
321 A194 Grade 8T S32100
25 ASTM A403/A403M-2022
321 WP321 S32100
26 Q/RP 007-2018
321
27 CNS 3477-2016
321

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