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430 Stainless Steel Strips

Grade 430 is a ferritic, straight chromium, non-hardenable grade, combining good corrosion resistance and formability characteristics with useful mechanical properties. Its ability to resist nitric acid attack permits its use in specific chemical applications but automotive trim and appliance components represents its largest fields of application.

Grade 430F is the free-machining version of this grade, available in bar form for use in automatic screw machines. Grade 434 is the molybdenum bearing version of Grade 430 and has the same useful combination of properties. Its molybdenum addition improves corrosion resistance.

These properties for 430 are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as forgings and bar in their respective specifications. Properties of Grade 430F are specified for bar in ASTM A582. Grade 430 has good resistance to a wide variety of corrosive enviornments, including nitric acid and some organic acids. It attains its maximum corrosion resistance when in the highly polished or buffed condition. In general its resistance to pitting and crevice corrosion resistance is close to that of grade 304. Stress corrosion cracking resistance of Grade 430 is very high, as it is for all ferritic grades.

Used in Food Industries, Chemical Industries , Electrielcal Industries, Genrater Industries, Shaft Industries, Cement Industries, Gas Industries, Power Project etc..

Specifications :

Standard : ASTM A240, ASME SA240
Size : 1000 x 2000, 1220 x 2440, (4' x 8'), 1250 x 2500, 1500 x 3000 To 6000, 2000 x 4000 To 6000
Thickness : 0.3 mm To 120 mm

Stainless Steel 430 Strip Chemical Properties :

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

430

min.

max.

-

0.12

-

1.00

-

1.00

-

0.040

-

0.030

16.0

18.0

-

-

0.75

-

430F

min.

max.

-

0.12

-

1.25

-

1.00

-

0.06

0.15

-

16.0

18.0

-

-

-

Stainless Steel 430 Strip Mechanical Properties :

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B) max

Brinell (HB) max

430

450

205

22

89

183

430F

552 typical

379 typical

25 typical

-

262

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