SUS430 Stainless Steel

in stock

 

We are the SUS 430/ 1.4016 / 1.4104 / 430F Stainless Steel Supplier Malaysia.  

With the strong global sourcing in Duplex Stainless Steel, our sales and supplier network including : Australia, Pakistan,  Malaysia, Singapore, Taiwan, China, Vietnam, Belgium, Japan, South Korea, Philippines, France, United Kingdom, Indonesia, Thailand, Hong Kong, China, Sweden, United States, Dubai, Finland, Brunei, Germany.

 

Leading Supplier of Stainless Steel 430

Specifications of Grade 430 Stainless Steel also equivalent to 
  • SUS430 | SS430 | UNS S43000 | SUS430F 

 

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
SS430 S43000 430S17 60 1.4016 X8Cr17 2320 SUS 430
SS430F S43020 1.4104 X12CrMoS17 2383 SUS 430F
** These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Properties of SUS430 Stainless Steel

Stainless Steel Grade 430 (SUS 430) is 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 represent its largest fields of application.

Stainless Steel Grade 430F (SUS 430F) is the free-machining version of this grade, available in bar form for use in automatic screw machines. Stainless Steel Grade 434 (SUS434) is the molybdenum bearing version of Grade 430 and has the same useful combination of properties. Its molybdenum addition improves corrosion resistance.

 

Key Properties 

These properties for SS430 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 Stainless Steel Grade 430F (SS 430F) are specified for bar in ASTM A582.

 

Chemical Composition of SS430 / SS430F 

GradeCMnSiPSCrMoNiN
SUS430min-----16.0---
max0.121.001.000.0400.03018.00.75
SUS430Fmin.----0.1516.0---
max.0.121.251.000.06-18.0

 

Mechanical Properties of SS 430 / SS 430F

Typical Mechanical Properties for Grade 430 / Grade 430F Stainless Steels as below

GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max
SS4034502052289183
SS403F552 Typical379 Typical 25 Typical-262

 

Physical Properties 

GradeDensity (kg/m3)aElastic Modulus (GPa)Mean Coefficient of Thermal Expansion
(mm/m/°C)
Thermal Conductivity
(W/m.K)
Specific Heat 0-100°C (J/kg.K)Electrical Resistivity (nW.m)
0-100°C0-315°C0-538°Cat 100°Cat 500°C
SS430775020010.411.011.423.926.0460600
SS430F775020010.411.011.426.126.3460600

* Physical Properties of SUS430 Stainless Steel in the Annealed Condition

 

Corrosion Resistance 

SUS430 has good resistance to a wide variety of corrosive media 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.

Like other high-sulphur free machining grades 430F has much reduced resistance to pitting and crevice corrosion compared to its non-free machining equivalent, particularly in the cross-section direction.

 

Heat Resistance 

Resists oxidation in intermittent service up to 870°C and to 815°C in continuous service. This grade may become brittle at room temperature after prolonged heating in the 400-600°C range. This effect can be eliminated by annealing.

 

Heat Treatment 

Solution Annealing – Heat to 815-845°C, hold for ½ hour per 25mm of thickness, slow furnace cool to 600°C and then quickly air cool. Slow cooling from 540-400°C will cause embrittlement.

Sub-Critical anneal – Heat to 760-815°C and then air cool or water quench.

* This grade is not hardenable by thermal treatment.

* Note that 430 is likely to scale more heavily at elevated temperatures than 304, and the scale produced is more difficult to remove by pickling.

 

Welding – If welding is necessary pre-heat at 150-200°C. Embrittlement in the weld metal and heat affected zone can be relieved by a post-weld anneal at 790-815°C, but grain refinement will not occur. Use Grade 430, 308L, 309 or 310 filler rod, depending upon the application. AS 1554.6 pre-qualifies welding of Grade 430 with Grade 309 filler rods and electrodes.

 

Machining – Grade 430 is easier to machine than the standard austenitic grades such as 304, but there is still a tendency for galling and pick-up on the cutting tool. Bars that have been lightly drawn are easier to machine than those in the annealed condition. Grade 430F, the free machining version of 430, is very much easier to machine.

 

Fabrication – The lower work hardening rate makes bending and forming somewhat easier than for grade 304, but the lower ductility restricts very severe operations. Wherever possible severe bends should be made with the bend axis at right angles to the rolling direction. The severe cold heading of 430 wire is possible.

If very severe cold working is required it may be necessary to carry out a sub-critical intermediate anneal.

 

Comparison of Stainless Steel Type 430 / Type 430F 

GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
BSEnNoName
SUS 430S43000430S17601.4016
X8Cr172320SUS 430
SUS 430FS43020--1.4104X12CrMoS172383SUS 430F

These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

 

Possible Alternative Grades to Grade 430 Stainless Steel 

GradeWhy it might be chosen instead of 430
SUS430FF

Higher machinability than 430 is needed in bar product, and reduced corrosion resistance is acceptable.
SUS434Better pitting resistance is required
SUS304 Slightly higher corrosion resistance is needed, together with greatly improved ability to be welded and cold formed
SUS316Much better corrosion resistance is needed, together with greatly improved ability to be welded and cold formed
3CR12 2

A lower corrosion resistance is acceptable in a cost-critical application

Technical Applications 

Stainless Steel Type 430 can be used in the following applications : 

  • Linings for dishwashers
  • Refrigerator cabinet panels
  • Automotive trim
  • Lashing Wire
  • Element Supports
  • Stove trim rings
  • Fasteners
  • Chimney Liners

 

Typical applications for Stainless Steel Type 430F include:

  • Repetition machined components

 

Our Sales and Supplier Network in SUS430 / SUS430F Stainless Steel : 

With over many years of experience and strong global sourcing networking in the market, we are proud to be the SS430 / SS430F / Type 430 Stainless Steel Supplier and Exporter to :

  • Australia, Pakistan,  Malaysia, Singapore, Taiwan, China, Vietnam, Belgium, Japan, South Korea, Philippines, France, United Kingdom, Indonesia, Thailand, Hong Kong, China, Sweden, United States, Dubai, Finland, Brunei, Germany.

Besides, we have the full range of Stainless Steel sheets, Stainless Steel Round Bar, Stainless Steel Rods, Stainless Steel Plate which consists of 

300 Series Stainless Steel : SUS304, SUS304L, SUS309, SUS310, SUS316Ti, SUS317, SUS321, SUS347

400 Series Stainless Steel  : SUS403, SUS410, SUS420, SUS431, SUS440C, SUS630, SUS904L 

Nitronic 30, Nitronic 50, Nitronic 60

– Super Duplex S32750, S32760 

253MA 

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