Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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ASTM A270 SS 304 316L Round Tube Corrosion Resistance For Food / Beverage Industry
Stainless Steel Sanitary Tube, Stainless Steel Sanitary Tubing, Stainless Sanitary Pipe
Manufacture:
In order to comply with this specification welded stainless steel tube must be manufactured by an automatic welding process using no filler metal, or it must be a seamless pipe. If a welded stainless steel tube has a nominal pipe size greater than 14'' then it may be constructed from two longitudinal sections, and hence have two longitudinal welds. The pipe may be either hot finished or cold finished.
Standard: ASTM A270
Material: 304, 304L, 316L
Finish: OD. & ID. Polished
OD. 3/4'' - 4'' (19.05MM - 101.60MM)
Application: Food & Dairy industry.
Applications:
1. Heat Exchangers, Condensers & Pressure Vessels
2. Chemical & Petrochemical
3. Gas Industry
4. Power Generation
5. Pressure Vessels
6. Marine Equipments
7. Food & Beverage Processing
8. Automotive
9. Pulp & Paper
| Standards | ASTM A270,DIN11850 |
| Specification | OD:6mm-1219mm,WT:0.5-30mm, Length: Max. 20meters |
| Material | TP304,TP304L,TP316L |
| Process method | Welded |
| Surface finish | 320# Inside & Outside Polished |
| Applications | Food & Dairy,Sanitary,Beverage |
| Packing | Each Tube with Plastic bag and cap,then in Wooden Cases |
| Marking | All tubes are marked as follows: SPEZILLA. Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request. ) |
Grade: Austenite,Ferritic, Super-Ferritic, Duplex Stainless Steel
Standard:ASTM A249/A213/A269/A554/A270/A312/A268/A778/A789/A790
DIN11850/17456/17458/SMS/ISO2037/ISO1127/EN10217-7 EN10216
OD:3.175-1016mm,WT: 0.5-20mm,Length:1000-20000mm,Type: Seamless, Welded
Finish and repair:
The surface of the welded stainless steel tube must be clean and free of scale and contaminating iron particles. It can be bright annealed but may be pickled, blasted or can be passivated.
Repair by welding. Permitted on <−20% of the weld seam length of welded stainless steel tube if >−NPS 6 and having a wall thickness >−0.200 in (mm). Tungsten-arc welding process is used for repairs, with filler metal to a grade as specified in A 312 (not repeated here). Weld repairs must be identified on the pipe and in test certificate.
Mechnical Propertiies:
| Grade | UNS Designation | Tensile Strength, min ksi [Mpa] | Yield Strength, min ksi [Mpa] |
|---|---|---|---|
| TP304 | S30400 | 75 [515] | 30 [205] |
| TP304L | S30403 | 70 [485] | 25 [170] |
| TP304H | S30409 | 75 [515] | 30 [205] |
| TP316 | S31600 | 75 [515] | 30 [205] |
| TP316L | S31603 | 70 [485] | 25 [170] |
| TP316H | S31609 | 75 [515] | 30 [205] |
| TP310S | S31008 | 75 [515] | 30 [205] |
| TP310H | S31009 | 75 [515] | 30 [205] |
| TP321 | S32100 | 75 [515] | 30 [205] |
| TP321H | S32109 | 75 [515] | 30 [205] |
| TP347 | S34700 | 75 [515] | 30 [205] |
| TP347H | S34709 | 75 [515] | 30 [205] |
