304L Square Stainless Steel Welded Pipe Large Size Stainless Steel Pipe Astm manufacturer from Turkey Mittel Steel

304L Square Stainless Steel Welded Pipe Large Size Stainless Steel Pipe Astm


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304L Square Stainless Steel Welded Pipe Large Size Stainless Steel Pipe Astm

***Product Description***

Product	304L Square Pipe Stainless Steel Welded Pipe Have Large Size in Stock
Material Grade	201 202 304 304L 309S 310S 316 316L 317L 321 347 904L .etc
Standard	ASTM,AISI, ASME ,SUS,JIS,EN,DIN,BS,GB .etc
Certification	ISO,SGS, BV
Brand	JISCO, LISCO, TISCO ,BAO STEEL POSCO/ ZPSS .etc
Shape	Round, Square, Rectangular, Oval, Slotted, Embossed, etc.
SIZE	OD : 6-159 mm
	Wall Thickness : 0.15-3.0mm
	Length: 6m or as your requirement
Tolerance	a) Outer Diameter: +/- 0.2mm
	b) Thickness: +/- 0.02mm
	c) Length: +/- 5mm
Ends	1) Plain 2) Beveled 3) Thread with Coupling or cap
End protector	1) Plastic pipe cap 2) Iron protector
Surface	Polished
Technique	Electronic Resistance Welded (ERW ) Electronic Fusion Welded (EFW) Double Submerged Arc Welded (DSAW)
Payment terms	L/C TT
Application	Decoration, construction & building, such as handrail, railing, window, furniture, etc.
Package	Standard export packing or as per customer's request.
Deliver time	5-10 days according to quantity

Round Sizes:
9.5, 12.7, 16, 17, 17.5, 18, 19, 20, 21, 22, 25.4, 28, 31.8, 36, 38, 42, 42.4, 48, 50.8, 60, 63, 63.5, 76, 76.2, 89, 101.6, 114, 133 .etc
Square Sizes:
10*10, 12.7*12.7, 15*15, 17*17, 18*18, 19*19, 20*20, 22*22, 23*23, 24*24, 25*25, 28*28, 30*30, 35*35, 36*36, 38*38, 40*40, 50*50, 60*60, 80*80 .etc
Rectangular Sizes:
20*10, 23*11, 24*12, 25*13, 30*15, 13*38, 30*20, 40*20, 34*22, 36*23, 38*25, 50*25, 60*30, 60*40, 75*45, 80*40, 95*45 .etc

The difference between 304 and 304L

The steel 304L is 304 to reduce the carbon content to 0.03% or less of the obtained steel, which is generally characteristic 304 is almost the same, but this steel can be suppressed due to the precipitation of chromium carbides caused sensitization between 500 ~ 900oC of improving welding susceptibility to intergranular corrosion caused by, and therefore suitable for large welded structure to be welded directly to use timber and timber fittings.
Forming process of almost 304 species of the same, but the aging cracking sensitivity is minimal.
In general corrosion, stress corrosion cracking, pitting resistance characteristics and the same 304.
Benxi Iron and species characteristics is to improve the intergranular corrosion susceptibility, will reduce the carbon content to not produce thermal welding parts of the practical problem. Between austenitic stainless steel to intergranular corrosion due to the grain boundary chromium carbide (Cr23C6) precipitation, 18 C solid solubility of Cr-8Ni steel last 0.02% at 800 ℃, C content than the solid solubility, the was heated to 600 ~ 900 ℃, chromium carbides will precipitate in the grain boundaries short time, reducing the amount of Cr within the austenite, decreased corrosion resistance. Thus, by reducing the carbon content in order to reduce the amount of precipitation of chromium carbides, improved thermal sensitivity of purpose. Since the phenomenon of intergranular corrosion in the heat affected zone of welding is the most welding is heated to a temperature range of 600 ~ 900 ℃ when it will occur, and the higher the C content of the steel, the more significant, but less than 0.03% when the C content will be sensitized to mitigate does not affect the degree.

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