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As a ferritic stainless steel, 430 stainless steel is categorized by its high chromium content. Ranging from 12-180, the increased levels of chromium create a grade of stainless steel that possesses good ductility and formability characteristics. It also has the ability to resist strong acid corrosion, and also because of the high chromium levels provides good resistance to oxidation.
The typical chemical composition is shown in the table below.
Grade | Standard | 430 Chemical Composition | ||||||||
C | Si | Mn | Cr | Ni | P | S | Mo | Others | ||
≤ % | ≤ % | % | % | % | ≤ % | ≤ % | ≤ % | % | ||
430 | ASTM A240 | 0.12 | 1.0 | 1.0 | 16.0 - 18.0 | 0.75 | 0.04 | 0.015 | — | — |
1.4016 | EN 10088-2 | 0.08 | 1.0 | 1.0 | 16.0 - 18.0 | — | 0.04 | 0.02 | — | — |
SUS430 | JIS G 4304 | JIS G 4305 | 0.12 | 1.0 | 1.0 | 16.0 - 18.0 | — | 0.04 | 0.03 | — | — |
Mechanical Properties
The mechanical properties are given in the table below.
Grade | Standard | 430 Mechanical Properties | |||||||
Tensile Strength | Yield Strength Rp0.2 | Elongation >% | Hardness | ||||||
(MPa) ≥ | (MPa) ≥ | HRB ≤ | HB ≤ | ||||||
430 | ASTM A240 | 450 | 205 | 22 | 89 | 183 | |||
1.4016 | EN 10088-2 | 400-630 | 240 | 18 | — | 200 | |||
SUS430 | JIS G 4304 | JIS G 4305 | 420 | 205 | 22 | 88 | 183 |
Finish | Thickness | Size | Characteristics | Applications |
NO.2B | 0.3-6.0mm | Width: 1000/1219/1500mm; Length: any length | Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface | General Application Medical Instruments,Tableware |
No. BA (Bright Annealed) | 0.3-6.0mm | Width: 1000/1219/1500mm; Length: any length | Bright heat treatment after cold rolling | Kitchen utensil, kitchen ware,architectural purpose |
NO.4 satin #4 | 0.3-3.0mm | Width: 1000/1219/1500mm; Length: any length | Polishing with No. 150 to No.180 mesh abrasivesThe most popular finishes | Milk & Food processing acilities, Hospital Equipment, Bath-tub |
NO.8 (8K mirror) | 0.3-6.0mm | Width: 1000/1219/1500mm; Length: any length | A mirror-like reflective surface by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior-Exterior decoration forbuilding |
HL (Hairline) | 0.3-6.0mm | Width: 1000/1219/1500mm; Length: any length | Finished by continuous linear polishing | Architectural purposes, escalators, kitchen ware vehicles |
Type 430 steel is a simple, inexpensive, and widely used stainless steel. While not a front runner in any one category, its combination of heat resistance, ductility, corrosion resistance, and low cost makes it a great general-purpose steel. Also, by modifying its composition slightly, 430F stainless steel can be easily machined, making a great machining alloy. Type 430 steel contests the top spot for the most widely used stainless steel, as it can be used in many applications such as:
and more.
To determine if this steel is right for your job, be sure to contact your supplier and ask them for their opinion. They will have the most up-to-date information on which steel will best fit your specifications and can give you the most relevant information on what is available.
JUDE is a comprehensive service provider of full-process solutions for stainless steel products. Fast delivery and competitive prices have earned us market recognition.
JUDE keeps 50,000 tons of regular-size stainless steel sheets/plates in stock all year round. We provide cold-rolled stainless steel sheets with thicknesses of 0.3mm-6.0mm and hot-rolled stainless steel plates with thicknesses of 3.0mm-100mm. For the sizes which have stock, we can even do same-day shipments.