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321 347 STS321
Shanqi
Product Description
300 Series Stainless Steel, the most widely used austenite steel is the 304, also known as 18/8 for its composition of 18% chromium and 8% nickel. 304 may be referred to as A2 stainless (not to be confused with AISI grade A2 air hardening alloy tool steel containing about 5% chromium). The second most common austenite steel is the 316 grade, also referred to as A4 stainless and called marine grade stainless, used primarily for its increased resistance to corrosion. A typical composition of 18% chromium and 10% nickel, commonly known as 18/10 stainless, is often used in cutlery and high-quality cookware. 18/0 is also available.
The austenitic type is non-magnetic or weakly magnetic, and the martensite or ferrite is magnetic.
As mentioned above, austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Due to component segregation or improper heat treatment during smelting, a small amount of martensite or ferrite in austenitic 304 stainless steel will be caused. body tissue. In this way, 304 stainless steel will have weak magnetism.
In addition, after cold working of 304 stainless steel, the structure will also be transformed to martensite. The greater the cold working deformation, the more martensite transformation, and the greater the magnetic properties of the steel. Like a batch of steel strips, Φ76 tubes are produced without obvious magnetic induction, and Φ9.5 tubes are produced. The magnetic induction is more obvious due to the large deformation of the bending and bending. The deformation of the square rectangular tube is larger than that of the round tube, especially the corner part, the deformation is more intense and the magnetic force is more obvious.
In order to completely eliminate the magnetic properties of 304 steel caused by the above reasons, high temperature solution treatment can be used to restore the stable austenite structure, thereby eliminating the magnetic properties.
In particular, it should be pointed out that the magnetic properties of 304 stainless steel caused by the above reasons are completely different from those of other materials such as 430 and carbon steel, which means that the magnetic properties of 304 steel always show weak magnetic properties.
Product Description
| Product | 321 347 STS321 Stainless Steel tube |
| Surface Finish | BA, 2B, 2D, 4K, 6K, 8K, NO.4, HL, Embossed |
| Technique | Hot Rolled / Cold Rolled |
| Standard | GB JIS ASTM ASME EN |
| Steel Grade | 200 series: 201 202 300 series: 301 304 304L 309 310 310s 316 316L 321 400 series: 409 410 410S 420 430 |
| Color | Standard RAL color: red, bule, white, grey, brick, etc. |
| Stock Dimension | 0.5mm-4mm x 1220mm/1500mm x 2440mm/2500mm; 5mm-25mm x 1220mm/1500mm x 2440mm/2500mm/6000mm; 8mm-80mm x 1500/1800/2000mm/2500 x 6000mm; Cut to size according to customers' demands |
| Service | OEM, customized processing service, customized fabrication by drawings |
| Processing Type | Cutting, bending, stamping, welding, cnc machining |
| Cutting Type | Laser cutting; water-jet cutting; flame cutting |
| Protection | 1. Inter paper available 2. PVC protecting film available |
| Application | Costruction Industry/Kichten Products/Fabrication Industry/Home Decoration |
FAQ
Q: What kind of work does your company do?
A: We are a business steel industry and trade. We mainly produces stainless steel plate/pipe/coil/round bars etc.
Q: What are the advantages of your company?
A: (1): Prime quality and Competitive price.
(2): Excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Samples can be provided as your requirements.
Q: What is your terms of payment ?
A: Can be negotiated by both parties. If you have another question, pls feel free to contact us as below.
Q: What about your price?
A: Our price is very competitive.
Pls feel free to contact us if you are interested in our products.
Q: How long is your delivery time?
A: Stock steel/Steel for simple cutting/Small amount of general standard steel: about 5-20 days for delivery; Custom steel/bulk steel: about 15-30 days for delivery. Contact us for specific delivery times.