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Our products conform to GB, AISI, ASTM, DIN, EN, JIS standard for stainlesss steel coil, sheet and plate.

420 Plate, 430 Stainless Steel Plate, 430 Stainless Steel Sheet, 420 Sheet, SS 430 Plate
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420/430 STAINLESS STEEL PLATE

Type 420 and 430 stainless steel plate offer moderate corrosion, heat resistance and exhibits good ductility. They can be readily formedinto many desired shapes.
420/430 STAINLESS STEEL PLATE

MORE DETAILS ABOUT 420/430 STAINLESS STEEL PLATE

Product Name

420/430 Stainless Steel Plate, 420/430 Stainless Steel Sheet

Equivalent Grade

420: AISI 420, UNS S42000, SAE 420, DIN 1.4021, SUS 420, X20Cr13

430: AISI 430, UNS S43000, SAE 430, DIN 1.4016, SUS 430, X8Cr17

Standard

GB, AISI, ASTM, DIN, EN, JIS

Process

Hot Rolled, Cold Rolled, Forged

Sizes

Thickness: 0.3-200mm, Width: 10-4000mm

Surface Treatment

NO.1, 1D, 2D, 2B, NO.4, BA, HL,Mirror, Embossim, Sandblasted

Fabricating

Rolling, Bending, Sllitting, Decoiling, Cutting, Drilling, Punching, Beveling, Welding etc.

Inspection

SGS, TUV, BV, ABS, LR etc.

Application

Oil&Gas, Petroleum, Vessels, Ship Building, Water Treatment And Environmental Protection etc.


GENERAL INFO ABOUT EACH Stainless Steel Plate GRADE

420 and 430 stainless steel is mainly used for machining, than normal stainless steel has better cost performance, so in the case of corrosion resistance is not high requirements, has been more widely used. This steel can get better mechanical properties after quenching treatment, with good machinability, magnetic, good hardness, welding need to preheat.


Single Sheet Of Rolling Specification
Thickness/Width 1500 1800 2000 2200 2400 2500 3200
4-6mm - - - - -
6-10mm - -
11-12mm
13-14mm
17-25mm
26-70mm
71-120mm special special special special special special special

MORE DETAILS ABOUT EACH Stainless Steel Plate GRADE

  • Hot Forming
  • Cold Forming
  • Welding
Type 420 stainless steel and grade 430 can be forged, upset and hot headed satisfactorily. 
Type 420 stainless steel and grade 430 can be readily blanked, formed, tempered, stamped, and cold-headed.
Type 420 stainless steel and grade 430 can be welded in the same way that stainless steel is normally welded in all industrial processes. To achieve the best welding results, stainless steel parts to be welded should be thoroughly removed from grease, oil or other surface contaminants. 

CHEMICAL PROPERTIES


C

Mn

P

S

Si

Cr

Ni

Mo

N

Cu

420

0.15

1.00

0.04

0.03

1.00

12.00-14.00

0.75

0.5

/

/

430

0.12

1.00

0.04

0.03

1.00

16.00-18.00

0.75

/

/

/


MECHANICAL PROPERTIES


Tensile Strength (min)

Yield Strength (min)

Elongation

Hardness, max


ksi

Mpa

ksi

Mpa

/

Brinell.HBW

Rockwell

420

100

690

/

/

15

183

95HRBW

430

65

450

30

205

22

183

95HRBW

MORE DETAILS ABOUT EACH Stainless Steel Plate PROCESS

  • Steel Making Process
  • Hot Roll Process
  • Solid Solutions & Pickling

MORE DETAILS ABOUT EACH Stainless Steel Plate SURFACE

  • NO.1
  • 2D
  • 2B
  • NO.4
  • BA
  • HL
  • Mirror
NO.1 surface treated by heat treatment and pickling after hot rolling. The  appearance is silver white, matt and bright. This surface is suitable for industries that require heat resistance and corrosion resistance, and the surface brightness is not important. Common applications include industrial tank and chemical industrial plants etc..
2D surface treated by heat treatment and pickling after cold rolling. The appearance is silver white, smoother but of matt grain. Common applications include petrochemical production equipment, automotive components, building materials and water pipes etc..
After 2D treatment, the final process is lightly cold rolled by a polishing roller to obtain proper gloss. The appearance is smooth and bright, and easy to re-grind to make the surface more brighter.  Common applications include building materials, tableware etc..
NO.4 is a product ground with a grinding belt of size 150-180. It has better gloss, discontinuous rough lines and finer stripes than No.3 stainless steel castings commonly used polished and sanded surfaces. Common applications include food processing equipment, home electrical products, medical equipment etc..
BA surface is also produced by cold rolling and de-scaling. It has excellent surface gloss, high reflectivity. In addition, The very smooth surface also makes this surface highly suitable for further finishing processes such as mirror polishing and chrome plating. Common applications include catering equipment etc..
HL use a polishing abrasive belt with an appropriate particle size (150-320 mesh) to grind, with obvious straight stripes. The surface is beautiful, good texture and scratch is not obvious, durable,  wear-resistant. Common applications include building decoratio, elevators, vehicle parts, etc..
Mirror is produced by polishing with successively finer abrasives and buffing extensively until all grit lines from preliminary grinding operations are removed. The feature is highest reflectivity. Mainly used for interior and exterior decoration materials of automobiles and buildings.

FREQUENTLY ASKED QUESTIONS

  • What Are The Classes Of Stainless Steel?
  • How Determine The Stainless Steel Grade For Your Needs?
  • How Does Chromium Prevent Rusting?

What Are The Classes Of Stainless Steel?


Answer:



Classes of stainless steel are organized by their crystalline structure, mainly divided into martensitic, ferritic, austenitic, duplex, and precipitation-hardening. Austenitic is the most common, 321/321H is one of the austenitic stainless steel.


How Determine The Stainless Steel Grade For Your Needs?


Answer:


Magnetic Response — Some types of stainless steel grade are more magnetic than others. Adding chromium to a stainless steel tends to make it more magnetic, but adding nickel offsets or even eliminates the magnetism. Grade 310 are non-magnetic.

How Does Chromium Prevent Rusting?


Answer:


309/309S stainless steel contains chromium (22.0 min.-24.0 max). Chromium and other elements react with air and water to form a thin film on the outside of the steel. This film serves as a barrier that prevents corrosion.


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