Wuxi Zhongxin Special Steel Co.,Ltd.
Mission: to be the demonstrator of high quality development of steel industry and the leader of future steel industry
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Product Description
ASTM SS321 Seamless Stainless Pipe Steel Tube For Industry
Type 321 is an austenitic chromium-nickel stainless steel containing Titanium which is recommended for parts fabricated by welding which cannot subsequently be annealed. Type 321 is a stabilized austenitic stainless steel similar to type 304 but with a titanium addition. This titanium addition reduces or prevents carbide precipitation during welding and in 800 - 1500 °F (427 - 816 °C) service. It also improves the elevated temperature properties of the alloy. Type 321 provides excellent resistance to oxidation and corrosion and possesses good creep strength.
Specifications Sheet
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| Application | Furniture industry, petroleum liquefied gas industry, chemical industry, construction, machinery, medical treatment, aerospace industry etc |
| Material | stainless steel |
| Standards | *ASTM: A249,A269,A312,A358,A688,A778,A789,A790,A928; *EN10217-7 |
| Pipe ends shape | round, square, rectangle (customize) |
| Finish | normal, no.4, hl, mirror etc |
| Steel Grade
| 200 300 400 series. such as TP304, 304L, 304H, TP316, 316L, 316H, TP321/321H, TP347/347H, S31803, S32205, S31500, S32304, S32750,S32760,1.4301,1.4307,1.4401,1.4404,1.4541,1.446 etc |
| Dimension | *OD(outer diameter): 6mm-2500mm(customize 1/8",1/4",3/8".....48" ) *WT(wall thickness): 0.2mm-80mm(customize Sch 5s to SchXXS) *Length: 3m, 6m, 12m(customize) |
| Tolerance | Outer diameter: ±0.1mm Thickness: ±0.02mm Length: ±1cm |
| Production technique | *ss seamless pipe round steel preparation--heating--hot-rolled perforation--cut head--Pickling--grinding--lubricating--cold rolling--degreased-solution heat treatment--straightening --cut pipe--Pickling--Product testing. *ss weld pipe raw material(belt or plate)--slitting--welding pipe--repairing--polishing--inspection (printing)--packaging--shipping (warehousing) (decorative welded pipe). |
| Surface process | #180, 240, 320, 400, 500, 600, 700, 800 polished; brushed; colored |
| Sample | Free sample available |
| Test before shipment | *100% dimension inspection; *100% chemical composition inspection; *Hardness/Tension/Flaring/Hydrostatic etc test; *Third party inspection available |
| Stock | generally 10000-30000ton in stock |
| Delivery time | within 7 days; 10-25 days for large quantity |
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