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25.4 X 1.2mm Ferrtic Utomotive Stainless Steel Tubing ASME SA268 TP430 S430000

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25.4 X 1.2mm Ferrtic Utomotive Stainless Steel Tubing ASME SA268 TP430 S430000

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Brand Name :	SPEZILLA
Model Number :	SMLS
Certification :	ISO9001, TS16949, PED, AD2000
Price :	NEGOCIATION
Payment Terms :	T/T, L/C
Supply Ability :	100TONS/MONTH
Delivery Time :	Ex-Mill 15 - 30DAYS

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25.4 X 1.2mm Ferrtic Utomotive Stainless Steel Tubing ASME SA268 TP430 S430000

25.4x1.2mm Ferrtic Stainless Steel Automotive Tube ASME SA268 TP430 S430000

Type 430 Ferritic Stainless Steel

The most commonly used ferritic steel, type 430 has a higher chromium content and is, consequently, more resistant to corrosion by nitric acids, sulfur gasses, and many organic and food acids. In some applications, this grade can be used as a replacement for austenitic grade 304. Type 430 is often found in interior appliances, including washing machine drums, kitchen sinks, cutlery, indoor panels, dishwashers, and other cooking utensils.

Type 430 is a ferritic stainless steel alloy which offers good corrosion resistance and is particularly resistant to nitric acid, making it a very useful material in chemical applications.

The corrosion resistance qualities are good, but they are not as good as the austenitic grades 301, 302 and 304. The alloy benefits from good formability and is readily weldable although not suitable for rigorous service. Machinability is also good although there is a possibility of galling. Type 430 stainless steel is commonly used in the production of domestic appliances and is also used in the automotive sector for trim parts.

TP430 is a typical martensitic chromium-alloy steel grade. It does not have the nickel content and owns the following characteristic:

- Harding by heat treatment
- High hardness with good ductility
- Good corrosion resistance capability
- Good wear corrosion resistance
- High cold-deformation property

Typical applications for 430 grade include:

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

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.

Welding

Pre-heat at 150-200°C if welding is necessary.
Embrittlement in the weld metal and heat affected zone can be relieved by a post-weld anneal at 790-815°C
Grain refinement will not occur.

Machining

Easier to machine than the standard austenitic grades such as 304.
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

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

Item Code:	TP430
Tube OD.:	1/4'' - 2''
Wall:	0.028'' - 0.120''
Length:	20FT
Material:	430
Standard:	ASTM A268 ASME SA268
Finish:	Annealed & Pickled.
Type:	Seamless Cold Drawn
Certification:	ISO9001:2015
Mill Test Certificate:	EN10204 3.1
Packing:	Sleeved, Wooden Boxed

5% Test Solution at 120°F (49°C)	Corrosion Rate in Mils per Year and Millimeters per Year (mm/a)
5% Test Solution at 120°F (49°C)	Alloy 409	Alloy 410S	Alloy 420	Alloy 425 Mod	Alloy 440A	Alloy 430
Acetic Acid	0.88 (0.022)	0.079 (0.002)	1.11 (0.028)	4.79 (0.122)	2.31 (0.0586)	0.025 (0.0006)
Phosphoric Acid	0.59 (0.002)	0.062 (0.002)	0.068 (0.002)	0.593 (0.015)	0.350 (0.009)	0.029 (0.001)

ASTM A268 Tp410 tube composition:

Grade:	TP405	TP410	TP249	TP430	TP443	TP446-1	TP446-2	…	TP409
UNS	S40500	S41000	S42900	S43000	S44300	S44600	S44600	S40800	S40900
C, max	0.08	0.15	0.12	0.12	0.20	0.20	0.12	0.08	0.08
Mn,max	1.00	1.00	1.00	1.00	1.00	1.50	1.50	1.00	1.00
P, max	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.045	0.045
S, max	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.045	0.045
Si, max	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Ni	0.50max	…	…	…	0.75max	0.75max	0.50max	0.80max	0.50max
Cr	11.5-14.5	11.5-13.5	14.0-16.0	16.0-18.0	18.0-23.0	23.0-27.0	23.0-27.0	11.5-13.0	10.5-11.7
Mo	…	…	…	…	…	…	…	…	…
Al	0.10-0.30	…	…	…	…	…	…	…	…
Cu	…	…	…	…	0.90-1.25	…	…	…	…
N	…	…	…	…	…	0.25	0.25	12xCmin	6xCmin
Ti	…	…	…	…	…	…	…	1.10max	0.75max

Chemical Composition
	Min. %	Max %
Carbon	0.09	0.15
Silicon	0	1.00
Manganese	0	1.00
*Nickel	0	1.00
Chromium	11.50	13.50
Phosphorous	0	0.04
Sulphur	0	0.03
*Nickel additional option

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