Jisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in Stock

China Jisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in Stock, Find details about China Stainless Steel Sheet, 430 Stainless Steel Sheet from Jisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in Stock

Model NO.
430
Surface Treatment
Bright
Trademark
TISCO BAO STEEL
Transport Package
Wooden Pallet
Specification
1220*2440, 1500*3000, 1500*6000, 2000*6000mm
Origin
China
HS Code
7219230000
Model NO.
430
Surface Treatment
Bright
Trademark
TISCO BAO STEEL
Transport Package
Wooden Pallet
Specification
1220*2440, 1500*3000, 1500*6000, 2000*6000mm
Origin
China
HS Code
7219230000
JISCO Bright Polished BA 8K Mirror 430 Stainless Steel Sheet Selling in Stock 

Specification of 430 Stainless Steel

 
Products430 Stainless Steel Sheet
Thicknesscold rolled 0.3 - 3.0mm   hot rolled 4.0 - 10.0mm
Standard Sizecold rolled 1000*2000mm  1219*2438mm  hot rolled 1500*6000mm
Surface2B BA NO.4 Hailrline Mirror 8K .etc
BrandTISCO JISCO  POSCO  BAOSTEEL
StandardASTM A240 / JIS G4305 / EN 10088-2
Other Grade201 202 301 304 304L 309S 310S 316L 316Ti 317L 321 347 410 420 430 440 441 443 444 2205 2507.etc
Our ServiceSlit Cutting, Surface process,
 

Introduction of 430 Stainless Steel

Stainless steel grade 430 is a non-hardenable steel containing straight chromium, and belongs to the ferritic group of steels. This steel is known for its good corrosion resistance and formability, coupled with practical mechanical properties. It can be used in certain chemical applications 

Grade 430F stainless steel is usually provided in bar form to be used in automatic screw machines.

Grade 434 has similar properties as grade 430, although it is a molybdenum-bearing version. The molybdenum content enhances its corrosion resistance.

Key Properties

The following sections will provide the key properties of grade 430 stainless steels coil, sheet and plate - covered under ASTM A240/A240M.

Composition of 430 Stainless Steel

The chemical compositions of various elements of grade 430 stainless steels are tabulated below.

Table 1 - Chemical compositions of grade 430 stainless steels

GradeN

C

Mn

Si

P

S

Cr

Mo

Ni

N

430

min.

max.

-

0.12

-

1

-

1

-

0.04

-

0.030

16

18

-

-

0.50

-

430F

min.

max.

-

0.12

-

1.25

-

1

-

0.06

0.15

-

16

18

-

-

-

Mechanical Properties of 430 Stainless Steel

The mechanical properties for grade 430 stainless steels are listed in the table below.

Table 2 - Mechanical properties of grade 430 stainless steels

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

483

310

22

85

183

430F

552 typical

379 typical

25 typical

-

262

Physical Properties of 430 Stainless Steel

The following table outlines the physical properties of grade 430 stainless steels.

Table 3 - Physical properties of grade 430 stainless steels in the annealed condition

Grade

Density (kg/m3)

Elastic Modulus (GPa)

Mean Coefficient of Thermal Expansion
(μm/m/°C)

Thermal Conductivity
(W/m.K)

Specific Heat 0-100°C (J/kg.K)

Electrical Resistivity (nΩ.m)

0-100°C

0-315°C

0-538°C

at 100°C

at 500°C

430

7750

200

10.4

11.0

11.4

26.1

26.3

460

600

430F

7750

200

10.4

11.0

11.4

26.1

26.3

460

600

Grade Specification Comparison

A comparison of grade specifications for 430 stainless steels is given in the following table.

Table 4 - Grade specifications for 430 stainless steels

Grade

UNS No

Old British

Euronorm

Swedish SS

Japanese JIS

BS

En

No

Name

430

S43000

430S17

60

1.4016

X8Cr17

2320

SUS 430

430F

S43020

-

-

1.4104

X12CrMoS17

2383

SUS 430F

Possible Alternative Grades

Suitable alternative grades that can be chosen instead of grade 430 stainless steelgrades that can be chosen instead of grade 430 stainless steel are listed in the table below.

Table 5 - Possible alternatives to grade 430 stainless steel

Grade

Reasons for choosing 430

430F

Higher machinability than 430 is needed in bar product, and reduced corrosion resistance is acceptable

434

Better pitting resistance is required

304

Slightly higher corrosion resistance is needed, together with greatly improved ability to be welded and cold formed

316

Much better corrosion resistance is needed, coupled with greatly improved ability to be welded and cold formed

3CR12

Lower corrosion resistance is acceptable in a cost-critical application

Corrosion Resistance

All ferritic grades, such as stainless steel grade 430, have excellent stress corrosion cracking resistance. Grade 430 has good corrosion resistance to numerous substances. The corrosion resistance is maximized in well-polished or buffed condition. Its pitting and crevice corrosion resistance is quite similar to that of grade 304. 430F is a high-sulfur free machining grade, and therefore the resistance to pitting and crevice corrosion is comparatively lesser than those grades that are non-free machining. 

Heat Resistance

Stainless steel grade 430 is capable of resisting oxidation up to 870°C (1598°F) in intermittent usage, and up to 815°C (1499°F) in continuous usage. At room temperature, it has the tendency to become brittle, especially when it has been heated for a long time in the 400-600°C (752-1112°F) range. This issue can be overcome with annealing.

Heat Treatment

Solution annealing can be performed by heating stainless steel grade 430 to 815 - 845°C (1499-1553°F). Then it has to be slow furnace cooled to 600°C (1112°F) and followed by air-cooling in a quick manner - as slow cooling between 540 and 400°C (1004 and 752°F) tends to cause embrittlement.

For sub-critical annealing, heating should be performed to 760-815°C (1400-1499°F), followed by air-cooling or water quenching.

This stainless steel cannot be hardened by thermal treatment.

Welding

To perform any welding, stainless steel grade 430 has to be pre-heated at 150-200°C (302-392°F). In case of embrittlement in the welded metal, the particular area can be post-weld annealed at 790-815°C (1454-1499°F); however grain refinement will not happen.

It is recommended that grade 430, 308L, 309 or 310 filler rod should be used based on the application. 

Machining

The machinability of stainless steel grade 430 is a lot easier than standard austenitic steels such as grade 304 - but there is a chance for galling. Lightly drawn bars are easier to machine than bars in the annealed condition. Grade 430F is easy to machine.

Fabrication

Stainless steel grade 430 has a low work hardening rate which enables easy bending and forming. The low ductility rate, however, makes it difficult to perform very rigorous operations. It is possible for grade 430 wire to handle rigorous cold heading. Sub-critical intermediate annealing may be required for extreme cold working. 

Applications of 430 Stainless Steel

The following are the applications for stainless steel grade 430:

  • Dish washer linings
  • Refrigerator cabinet panels
  • Element supports and fasteners
  • Stove trim rings and chimney liners
  • Automotive trim and lashing wires
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Jisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in StockJisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in StockJisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in StockJisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in StockJisco Bright Polished Ba 8K Mirror 430 Stainless Steel Sheet Selling in Stock