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430 Description

430 stainless steel belongs to the 400 series of stainless steel and is a ferritic stainless steel alloy. This material is known for its corrosion resistance, moderate strength, and affordability compared to other grades of stainless steel. It comprises around 17% chromium, which provides it with corrosion-resistant properties. However, it has a low nickel content of approximately 0.75% (maximum), which makes it less expensive than austenitic stainless steel.

430 stainless steel is commonly used where corrosion resistance is necessary, such as in kitchen appliances, automotive trim, architectural trim, and industrial equipment. It is also used for some cookware and utensils. Nonetheless, it is not appropriate for highly corrosive environments. While 430 stainless steel offers good corrosion resistance in pH-neutral and mildly acidic environments, it is prone to pitting corrosion in saltwater environments.

Making Process of 430 Stainless Steel

430 stainless steel is produced through melting and refining in a furnace using reducing agents that purify the melt. This furnace can be an electric arc furnace heated by arcing between two carbon electrodes or an induction heating furnace surrounded by a high-power AC coil. In both cases, the highest steel grades are produced through purification under a vacuum. After this process, the steel undergoes hot working and heat treatment.

Metallurgy of 430 Stainless Steel

Stainless steel must contain a minimum of 10.5% chromium. When cooled from the liquid phase, steel undergoes transformations from ferritic α phase to austenitic γ phase, then back to α until around 13% chromium. With carbon and rapid cooling, some austenite becomes martensite. Tempering/annealing transforms martensite to ferrite and carbides. Above 17% chromium, the steel is always ferritic.

Chemical Composition %

% C Cr Ni Mo Cu P Mn Si S N
min 16
max 0.12 18 0.75 0.04 1.0 1.0 0.03

Mechanical & Physical Properties

0.2% Yield Strength Tensile Strength Elongation Modulus of Elasticity Density Melting Range
MPa MPa % GPa g/cm³ °C
345 517 25 200 7.7 1425-1510
  • COMMON TRADE NAMES
  • 430
  • S4300
  • EN:1.4016
  • X6Cr17
  • 10Cr17
  • SUS430
  • ЭИ162 / 08Х17Т

Specification

  • Plate:ASTM A240
  • Bar:ASTM A276
  • Forging:
  • Pipe-Seamless:
  • Pipe-Welded:ASTM A268
  • Flange:
  • Fitting:

Typical Applications

  • Linings for Dish Washers
  • Refrigerator Cabinet Panels
  • Automotive Trim
  • Lashing Wire
  • Element Supports
  • Stove Trim Rings
  • Fasteners
  • Chimney Liners

Welding consumables

  • TIG / GTAW：ER309L
  • SMAW：E309L
  • FCAW：E309LT0-1
  • SAW：ER309L Strip
  • Flux: SJ601

What Can We Offering

Available Product Range (in mm)

  • Cold-Rolled Steel Sheet/Plate
  • Thickness: Ranging from 0.2mm to 4mm
  • Width: 600mm-2000mm
  • Standard Width: 1000, 1219, 1500, and 2000mm
  • Length:1000mm-6000mm
  • Cut to Length: 2000 2440, 3000, 3048 and 6000mm
  • Form: Sheet Or Coil
  • Cold Rolled Coil:No. 3, 2B, BA-2BB, No. 4, BA, No. 6, BA-dull, 2D

Available Round Bar Dimensions (in mm)

  • Diameter
  • General Range: 3mm to 800mm
  • Common Range: 25mm to 152mm
  • Specialized: Up to 300mm or more for certain applications
  • Length
  • Standard: 1 to 6 meters
  • Custom: Available in custom cut lengths
  • Other dimensions
  • Forms: Available in various forms including round, square, hex, flat, billet, and ingot
  • Finishes: Common finishes include bright, polished, and black
  • Tolerance:±0.05 mm (cold-drawn), ±0.4 mm (hot-rolled)

Type Of Flangs (Size/Dimensions)

  • Welding Neck, Reducer Flange,Socket Weld Flange
  • Dimensions:½” – 48″（DN15-DN1200）
  • Pressure Class:150# 300# 600#900#1500#
  • Facing Type:RF,FF,RTJ
  • Slip-On Flange,Lap Joint Flange,Threaded Flange
  • Dimensions:½” NB – 24″ NB（DN15 – DN600）
  • Pressure Class: Class 150 to 2500
  • Face: Raised face (RF), Ring type joint (RTJ)
  • Blind Flange
  • Dimensions:½” – 60″（DN15-DN1500）
  • Pressure Class:150# 300# 600#900#1500#

Types of Steel Pipes & Tubes

  •  Seamless Pipe
  • OD Φ6 – Φ630 mm, WT 0.5 – 80 mm
  • Welded Pipe
  • OD Φ15 – Φ3000 mm (up to 3m for spiral)
  • Precision Tube
  • OD Φ4 – Φ100 mm, WT tolerance ±0.05mm
  • Capillary Tube
  • OD 0.5 – 6 mm, WT down to 0.1mm
  • Coiled Tube
  • Up to 100–1000m long, for OD < Φ25mm

Types of Fittings

  • Elbow:Butt-Weld┃Socket Weld ┃Threaded
  • 90°, 45°, and 180°. Available in Long Radius (LR) and Short Radius (SR) types.
  • Nominal Diameter (DN): DN6 – DN1200 (NPS ¼” – 48″)
  • Schedule : SCH 5, 10, 20, 30, 40, 80, 160, XXS
  • Custom angles (e.g., 30°, 60°), U-bend heat exchanger tubes
  • Tee:Equal┃Reducing┃Butt-Weld┃Socket Weld┃Threaded
  • Nominal Diameter (DN): DN6 – DN1200 (NPS ¼” – 48″)
  • Schedule : SCH 5, 10, 20, 30, 40, 80, 160, XXS<
  • Cap:Butt-Weld┃Threaded┃Socket Weld
  • Nominal Diameter (DN): DN6 – DN1200 (NPS ¼” – 48″)
  • Schedule : SCH 5, 10, 20, 30, 40, 80, 160, XXS
  • Custom non-standard sizes, small batch orders
  • Weldolet,Sockolet,Threadolet,Latrolet,Nipolet,Lapolet
  • Run Pipe: DN25 – DN1200 (NPS 1″ – 48″)
  • Outlet Branch: DN6 – DN200 (NPS ¼” – 8″)
  • Schedule: SCH 40, 80, 160, XXS (matched to run pipe)

Overall Supply Range of Metal Strip & Foil

Strip & Foil
  • Thickness(Thin Strip):0.02 mm – 0.5 mm
  • Thickness(Foil):≤ 0.02 mm（20 μm）
  • Narrow width: 5–50 mm (for electronic leads)
  • Wide width: 50–600 mm (for general coil applications)
  • Coil Length:Continuous rolls, each roll 10–3000 meters
  • Roll weight: 1–500 kg (depending on material density)
  • Finishes:Bright,Matte,Embossed,Coated

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