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Mechanical Property

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The mechanical property of stainless steel, including tensile strength, elongation, proof stress, hardness, can be measured by examining specimen solution heat treatment or annealing heat treatment.

Austenite series

Austenite series Mechanical Property table
Notation Symbol Yield Strength
(N/mm²)		 Tensile Strength
(N/mm²)		 Elongation
(%)		 Hardness
HB HRB HV
201 BNG201 More than 325 More than 650 More than 40 - - Less than 240
STS201 More than 245 More than 640 More than 40 Less than 241 Less than 100 Less than 253
Type201 More than 310 More than 655 More than 40 241 100 253
202 BNG202 More than 205 More than 550 More than 40 - - Less than 220
STS202 More than 245 More than 590 More than 40 Less than 207 Less than 95 Less than 218
Type202 More than 260 More than 620 More than 40 Less than 241 Less than 100 Less than 253
301 STS301 More than 205 More than 520 More than 40 Less than 207 Less than 95 Less than 218
301L STS301L More than 215 More than 550 More than 40 Less than 187 Less than 90 Less than 200
304 STS201 More than 205 More than 520 More than 40 Less than 187 Less than 90 Less than 200
304L STS304L More than 175 More than 480 More than 40 Less than 187 Less than 90 Less than 200
304J1 STS304J1 More than 155 More than 450 More than 40 Less than 187 Less than 90 Less than 200
305 STS305 More than 175 More than 480 More than 40 Less than 187 Less than 90 Less than 200
316 STS316 More than 205 More than 520 More than 40 Less than 187 Less than 90 Less than 200
316L STS316L More than 175 More than 480 More than 40 Less than 187 Less than 90 Less than 200
321 STS321 More than 205 More than 520 More than 40 Less than 187 Less than 90 Less than 200

Ferrite series

Ferrite series Mechanical Property table
Notation Symbol Yield Strength
(N/mm²)		 Tensile Strength
(N/mm²)		 Elongation
(%)		 Hardness
HB HRB HV
409L1) STR409L1 More than 175 More than 360 More than 25 Less than 167 Less than 80 Less than 175
430 STS430 More than 205 More than 450 More than 22 Less than 183 Less than 88 Less than 200
430J1L STS430J1L More than 205 More than 390 More than 22 Less than 192 Less than 90 Less than 200
436L STS436L More than 245 More than 410 More than 20 Less than 217 Less than 96 Less than 230
439L STS439 More than 175 More than 360 More than 22 Less than 183 Less than 88 Less than 200
444 STS444 More than 245 More than 410 More than 20 Less than 217 Less than 96 Less than 230
443CT BNG443CT More than 245 More than 410 More than 20 Less than 217 Less than 96 Less than 230
445NF BNG445NF More than 245 More than 410 More than 25 - - Less than 200

1) Heat Resistance Steel(KS D 3732)

Martensite series

Martensite series Mechanical Property table
Notation Symbol Yield Strength
(N/mm²)		 Tensile Strength
(N/mm²)		 Elongation
(%)		 Hardness
HB HRB HV
410 STS410 More than 205 More than 440 More than 20 Less than 201 Less than 93 Less than 210
420J1 STS420J1 More than 225 More than 520 More than 18 Less than 223 Less than 97 Less than 234
420J2 STS420J2 More than 225 More than 540 More than 18 Less than 235 Less than 99 Less than 247