PRODUCTGRADEEQUIVALENT STANDARDCHEMICAL COMPOSITION (%)SUPPLY CONDITIONAPPLICATIONTYPE OF APPLICATION
AISIDINJISCSiMnCrMoNiVWOth.
Martensitic Stainless Steel
N695

1.4125,
X105CrMO17

SUS 440C

1.05

0.4

0.4

17.0

0.5

285 HBMagnetic, high C content, good purity, Good strength, wear-resistant, corrosion-resistant. can be hardened, suitable for making bearings, roller valves, high quality blades
440 A

1.4122, X39CrMo17-1

SUS 440A

0.65-0.75

1.0

1.0

16.0-18.0

0.75

P/0.04, S/0.03

269 HBHigh carbon, highest hardness, purity, good strength, wear-corrosion resistant, can be hardened suitable for making ball bearings, valves, high quality blades
440 B

1.4112,
X90CrMoV18

SUS 440B

0.75-0.95

440 C

1.4125,
X105CrMo17

SUS 440C

0.95-1.2

431

1.4057, X17CrNi16-2

SUS 431

0.2

1.0

1.0

15.0-17.0

1.25-2.50

P/0.04, S/0.03

210 HBNickel-bearing grade, tough, resistant to torsion, the most corrosion resistance, can be hardened suitable for spare parts, marine machineries, lab equipments
420J2

1.4028, X30Cr13

SUS 420 J2

0.15-0.36

1.0

1.0

12.0-14.0

1.0

P/0.04, S/0.03

241 HBSurgical grade, high corrosion resistant, a mixture of Cr 12% tough Resistant to abrasion – corrosion – impact force, suitable for making blades, molds
420

1.4021, X20Cr13

SUS 420 J1

416

1.4005, X12CrS13

SUS 416

0.15

1.0

1.3

12.0-14.0

0.6

P/0.06, S/0.15

262 HBFree machining grade with a mixture of Mn-S, good machinability, resistant to corrosion of acid-alkali-water-wind suitable for making gears, valves, couplings
410

1.4006, X12Cr13

SUS 410

0.15

1.0

1.0

11.5-13.5

0.75

P/0.04, S/0.03

General purpose, composed of a mixture of Cr 11.5%, good strength, medium heat resistance-diluted corrosion, can be hardened suitable for axles, valves, bearings
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