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Mechanical Properties

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KS, JIS

- Austenite -

Steel Grade Mechanical Properties Density
YS (N/㎟) TS (N/㎟) EL (%) Hardness (Hv)
301 ≥ 205 ≥ 520 ≥ 40 ≤ 218 7.930
304 ≥ 205 ≥ 520 ≥ 40 ≤ 200 7.930
304L ≥ 175 ≥ 480 ≥ 40 ≤ 200 7.930
304J1 ≥ 155 ≥ 450 ≥ 40 ≤ 200 7.930
310S ≥ 205 ≥ 520 ≥ 40 ≤ 200 7.980
316 ≥ 205 ≥ 520 ≥ 40 ≤ 200 7.980
316L ≥ 175 ≥ 480 ≥ 40 ≤ 200 7.980
316Ti ≥ 205 ≥ 520 ≥ 40 ≤ 200 7.980
321 ≥ 205 ≥ 520 ≥ 40 ≤ 200 7.930

- Ferrite -

Steel Grade Mechanical Properties Density
YS (N/㎟) TS (N/㎟) EL (%) Hardness (Hv)
430 ≥ 205 ≥ 450 ≥ 22 ≤ 200 7.700
430J1L ≥ 205 ≥ 390 ≥ 22 ≤ 200 7.700
444 ≥ 245 ≥ 410 ≥ 20 ≤ 230 7.700

- Martensite -

Steel Grade Mechanical Properties Density
YS (N/㎟) TS (N/㎟) EL (%) Hardness (Hv)
410 ≥ 205 ≥ 440 ≥ 20 ≤ 210 7.750
410S ≥ 205 ≥ 410 ≥ 20 ≤ 200 7.700
420J2 ≥ 225 ≥ 540 ≥ 18 ≤ 247 7.700

Strips for Spring

Steel Grade 조질 Mechanical Properties Density
YS (N/㎟) TS (N/㎟) EL (%) Hardness (Hv)
STS301-CSP 1/2 H ≥ 510 ≥ 930 ≥ 10 ≥ 310 7.930
3/4 H ≥ 745 ≥ 1130 ≥ 5 ≥ 370 7.930
H ≥ 1030 ≥ 1320 - ≥ 430 7.930
EH ≥ 1275 ≥ 1570 - ≥ 490 7.930
STS304-CSP 1/2 H ≥ 470 ≥ 780 ≥ 6 ≥ 250 7.930
3/4 H ≥ 665 ≥ 930 ≥ 3 ≥ 310 7.930
EH ≥ 880 ≥ 1130 - ≥ 370 7.930
STS420J2-CSP - - - - ≥ 210 7.700

※ Please refer to Steel Family Tree for features and applications of each steel grade