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Home Material SS 14 2338
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Grade 2338
Corresponding Standard SS 14 2338
Stainless Steel – SS Steel 23 38
Classification Austenitic Stainless Steel
2338 Chemical Element Composition Content (%)
Component C ① Si Mn P S Cr Ni ② More
Minimum Value - - - - - 17 9 Nb:10C~1
Maximum Value 0.08 1 2 0.045 0.03 19 12
① For steel to be used at temperatures within the creep range, a minimum of 0.04% C applies.
② For pipes, max. 13.0%.
2338 Mechanical Properties
Product Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Specified Plastic Yield Strength
Rp0.2
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
Pipe；t≤10 2338-02 Annealing 510~710 ≥220 Rp1.0
≥250		 A5
≥35		 ≤210
Pipe；t＞10 2338-02 Annealing 510~710 ≥200 Rp1.0
≥230		 A5
≥35		 ≤210
Seamless Tube；t≤10 2338-22 Annealing 510~710 ≤220 Rp1.0
≥250		 A5
≥35		 ≤210
Seamless Tube；t＞10 2338-22 Annealing 510~710 ≥200 Rp1.0
≥230		 A5
≥35		 ≤210
Welding tube 2338-23 Annealing 510~710 ≥220 Rp1.0
≥240		 A5
≥35		 ≤210
Seamless Tube；t≤10 2338-24 Annealing 510~710 ≥220 Rp1.0
≥250		 A5
≥35		 ≤210
Seamless Tube；t＞10 2338-24 Annealing 510~710 ≥200 Rp1.0
≥230		 A5
≥35		 ≤210
Welding tube 2338-25 Annealing 510~710 ≥220 Rp1.0
≥250		 A5
≥35		 ≤210
Bar, forging；t≤50 2338-27 Annealing 510~710 ≥220 Rp1.0
≥250		 A5: ≥35
A10: ≥30		 ≤210
Bar, forging；50＜t≤100 2338-27 Annealing 510~710 ≥200 Rp1.0
≥230		 A5
≥35		 ≤210
Plate, strip；t≤30 2338-28 Annealing 510~710 ≥220 Rp1.0
≥250		 A5: ≥35
A10: ≥30		 ≤210
Plate, strip；30＜t≤50 2338-28 Annealing 510~710 ≥200 Rp1.0
≥230		 A5
≥35		 ≤210
Plate, strip；t≤30 2338-29 Cold-drawn 550~750 350~450 Rp1.0
380~530		 A5
≥30		 ≤240
1 Approximate Comparison Table Austenitic Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr18Ni11Nb S34778 347 SUS 347 STS 347 347 S34700 X6CrNiNb 18-10 X6CrNiNb 18-10
(X10CrNiNb18-9) 		1.4550 Z6CNNb 18-10 X6CrNiNb 18-10 1.4550 08Х18Н12Б 2338 347S17
347S31
2 Approximate Comparison Table Austenitic Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr18Ni11Nb
(0Cr18Ni11Nb) 		S34778 347 SUS 347 STS 347 347 S34700 X6CrNiNb 18-10 X6CrNiNb 18-10
(X10CrNiNb18-9) 		1.4550 Z6CNNb 18-10 X6CrNiNb 18-10 1.4550 08Х18Н12Б 2338 347S17
347S31

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