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Sihe Steel
Sihe Steel
Stainless steel Super Duplex 2507 is designed to handle highly corrosive conditions and situations where high strength is required. High molybdenum, chromium, and nitrogen content in Super Duplex 2507 help the material withstand pitting and crevice corrosion. The material is also resistant to chloride stress corrosion cracking, erosion corrosion, corrosion fatigue, and general corrosion in acids. This alloy has good weldability and very high mechanical strength.
| Element | Content (%) |
|---|---|
| Chromium, Cr | 24 – 26 |
| Nickel, Ni | 6 – 8 |
| Molybdenum, Mo | 3 – 5 |
| Manganese, Mn | 1.20 max |
| Silicon, Si | 0.80 max |
| Copper, Cu | 0.50 max |
| Nitrogen, N | 0.24 – 0.32 |
| Phosphorous, P | 0.035 max |
| Carbon, C | 0.030 max |
| Sulfur, S | 0.020 max |
| Iron, Fe | Balance |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.281 lb/in³ |
| Melting point | 1350°C | 2460°F |
| Item | Grade | Size (MM) | Pressure (Mpa) | Length (M) |
|---|---|---|---|---|
| 1 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 1/8″ × 0.025″ | 3200 | 500-2000 |
| 2 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 1/8″ × 0.035″ | 3200 | 500-2000 |
| 3 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 1/4″ × 0.035″ | 2000 | 500-2000 |
| 4 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 1/4″ × 0.049″ | 2000 | 500-2000 |
| 5 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 3/8″ × 0.035″ | 1500 | 500-2000 |
| 6 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 3/8″ × 0.049″ | 1500 | 500-2000 |
| 7 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 1/2″ × 0.049″ | 1000 | 500-2000 |
| 8 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | 1/2″ × 0.065″ | 1000 | 500-2000 |
| 9 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ3mm × 0.7mm | 3200 | 500-2000 |
| 10 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ3mm × 0.9mm | 3200 | 500-2000 |
| 11 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ4mm × 0.9mm | 3000 | 500-2000 |
| 12 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ4mm × 1.1mm | 3000 | 500-2000 |
| 13 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ6mm × 0.9mm | 2000 | 500-2000 |
| 14 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ6mm × 1.1mm | 2000 | 500-2000 |
| 15 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ8mm × 1mm | 1800 | 500-2000 |
| 16 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ8mm × 1.2mm | 1800 | 500-2000 |
| 17 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ10mm × 1mm | 1500 | 500-2000 |
| 18 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ10mm × 1.2mm | 1500 | 500-2000 |
| 19 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ10mm × 2mm | 500 | 500-2000 |
| 20 | 316L, 304L, 304, Alloy 625, 825, 2205, 2507 | φ12mm × 1.5mm | 500 | 500-2000 |
| Item | W.T (mm) | 3.0-4.0 mm | 4.01-6.00 mm | 6.01-8.00 mm | 8.01-10.0 mm | 10.01-12.7 mm | 12.71-19.05 mm | 19.05-25.4 mm |
|---|---|---|---|---|---|---|---|---|
| Coiled Tubing | 0.30-0.40 | √ | √ | √ | ||||
| Coiled Tubing | 0.41-0.50 | √ | √ | √ | √ | |||
| Coiled Tubing | 0.51-0.60 | √ | √ | √ | √ | √ | ||
| Coiled Tubing | 0.61-0.70 | √ | √ | √ | √ | √ | √ | |
| Coiled Tubing | 0.71-1.00 | √ | √ | √ | √ | √ | √ | √ |
| Coiled Tubing | 1.01-1.20 | √ | √ | √ | √ | √ | √ | |
| Coiled Tubing | 1.21-1.50 | √ | √ | √ | √ | |||
| Coiled Tubing | 1.51-2.0 | √ | √ | √ |
| U.S.A. (AISI) | GERMANY (DIN) | GERMANY (W.N.) | FRANCE (AFNOR) | JAPAN (JIS) | ITALY (UNI) | SWEDEN (SIS) | U.K. (BSI) | E.U. (EN) |
|---|---|---|---|---|---|---|---|---|
| 201 | - | - | - | SUS 201 | - | - | - | - |
| 301 | X 12 CrNi 17 7 | 1.4310 | Z 12 CN 17-07 | SUS 301 | X 12 CrNi 1707 | 23 31 | 301S21 | X 12 CrNi 17 7 |
| 302 | X 5 CrNi 18 7 | 1.4319 | Z 10 CN 18-09 | SUS 302 | X 10 CrNi 1809 | 23 31 | 302S25 | X 10 CrNi 18 9 |
| 303 | X 10 CrNiS 18 9 | 1.4305 | Z 10 CNF 18-09 | SUS 303 | X 10 CrNiS 1809 | 23 46 | 303S21 | X 10 CrNiS 18 9 |
| 303 Se | - | - | Z 10 CNF 18-09 | SUS 303 Se | X 10 CrNiS 1809 | - | 303S41 | - |
| 304 | X 5 CrNi 18 10 | 1.4301 | Z 6 CN 18-09 | SUS 304 | X 5 CrNi 1810 | 23 32 | 304S15 | X 6 CrNi 18 10 |
| 304 N | - | - | - | SUS 304N1 | X 5 CrNiN 1810 | - | - | - |
| 304 H | - | - | - | SUS F 304H | X 8 CrNi 1910 | - | - | - |
| 304 L | X 2 CrNi 18 11 | 1.4306 | Z 2 CN 18-10 | SUS 304L | X 2 CrNi 1911 | 23 52 | 304S11 | X 3 CrNi 18 10 |
| - | X 2 CrNiN 18 10 | 1.4311 | Z 2 CN 18-10-Az | SUS 304LN | X 2 CrNiN 1811 | 23 71 | - | - |
| 305 | - | - | Z 8 CN 18-12 | SUS 305 | X 8 CrNi 1812 | 23 33 | 305S19 | X 8 CrNi 18 12 |
| - | - | - | Z 6 CNU 18-10 | SUS XM7 | - | - | - | X 6 CrNiCu 18 10 4 |
| 309 | X 15 CrNiS 20 12 | 1.4828 | Z 15 CN 24-13 | SUH 309 | X 16 CrNi 2314 | - | 309S24 | X 15 CrNi 23 13 |
| 309 S | - | - | - | SUS 309S | X 6 CrNi 2314 | - | - | X 6 CrNi 22 13 |
| 310 | X 12 CrNi 25 21 | 1.4845 | - | SUH 310 | X 22 CrNi 2520 | - | 310S24 | - |
| 310 S | X 12 CrNi 25 20 | 1.4842 | Z 12 CN 25-20 | SUS 310S | X 5 CrNi 2520 | 23 61 | - | X 6 CrNi 25 20 |
| 314 | X 15 CrNiSi 25 20 | 1.4841 | Z 12 CNS 25-20 | - | X 16 CrNiSi 2520 | - | - | X 15 CrNiSi 25 20 |
| 316 | X 5 CrNiMo 17 12 2 | 1.4401 | Z 6 CND 17-11 | SUS 316 | X 5 CrNiMo 1712 | 23 47 | 316S31 | X 6 CrNiMo 17 12 2 |
| 316 L | X 2 CrNiMo 17 13 2 | 1.4404 | Z 2 CND 17-12 | SUS 316L | X 2 CrNiMo 1712 | 23 48 | 316S11 | X 3 CrNiMo 17 12 2 |
| 317 L | X 2 CrNiMo 18 16 4 | 1.4438 | Z 2 CND 19-15 | SUS 317L | X 2 CrNiMo 1815 | 23 67 | 317S12 | X 3 CrNiMo 18 16 4 |
| 321 | X 6 CrNiTi 18 10 | 1.4541 | Z 6 CNT 18-10 | SUS 321 | X 6 CrNiTi 1811 | 23 37 | 321S31 | X 6 CrNiTi 18 10 |
| 347 | X 6 CrNiNb 18 10 | 1.4550 | Z 6 CNNb 18-10 | SUS 347 | X 6 CrNiNb 1811 | 23 38 | 347S31 | X 6 CrNiNb 18 10 |
| 904L | - | 1.4939 | Z 12 CNDV 12-02 | - | - | - | - | - |
| UNS31803 | X 2 CrNiMoN 22 5 | 1.4462 | - | - | - | - | - | - |
| UNS32760 | X 3 CrNiMoN 25 7 | 1.4501 | Z 3 CND 25-06Az | - | - | - | - | - |
| 410 S | X 6 Cr 13 | 1.4000 | Z 6 C 13 | SUS 410S | X 6 Cr 13 | 23 01 | 403S17 | X 6 Cr 13 |
| Schedule 9.52mm Type 304 Stainless Steel Pipe | Schedule 40 Type 304 Stainless Steel Pipe |
| ASTM 5564 1/8” Seamless Tubing coiled tubing | Polished 304 Stainless Steel Tubing |
| 304 Stainless Steel Threaded Pipe | Susd 30304 Stainless Steel Rectangular Tube |
| JIS SUS304 Seamless Tubes | 304 SS Round Tube |
| SS 304 Welded Tubes for oil and Gas | AMTM 5560 Seamless Tube |
| ASTM A312 TP304 Coiled Tubing | Stainless Steel Inox 304 Capillary Tubing |
| ASTM A312 Gr TP 304 Aerospace tubes | AMS 5566 High Pressure Tube |
| SA213 TP 304 Sighting Tube | Type 304 Stainless Steel Polished Pipes |
| ASTM A312 TP304 Elliptical and Oval Tubes | AMS 5567 Rectangular Tube |
| ASTM A213 TP304 Condenser Tube | AMS 5563 1/4” *0089” Seamless tubes |
| ASTM A269 TP304 straight tube boiler | AMS 5563 Welded furnace tube |
| ASTM A249 TP304 Mirror Tube | AMS 5564 1/8” Welded Tubing, High-Pressure Hydraulic |
| UNS S30400 Pitot Tube | Stainless Steel 304 Seamless Round Tubing |
| ASTM A358 TP304 Polished Tubing | 304 Stainless Steel Ornamental Tube |
| Stainless Steel 304 Exhaust Pipe | 304 Stainless Steel Spiral Pipe |
| ASME SA213 TP304 Perforated Tube | WERKSTOFF NR. 1.4301 Flexible Tube |
| SA 688 TP304 Finned Tube | SS 304 seamless steel coiled Tube |
| Din 1.4301 AISI 304 Perforated Exhaust Tube | Stainless Steel 304 Hypodermic Tubing |
| Din W.-Nr. 1.4301 Aisi 304 Corrugated Tube | SS 304 Honed Tube |
| Material 1.4301 Aisi 304 Slotted Handrail Tube | SS 304 Thin Wall Tube |
| ASTM 3/8”*0.035” stainless steel coiled tube | 304 Stainless Steel Threaded Pipe |
| Stainless Steel 304 Ornamental Pipe | Stainless Steel 304 Fin Tube / Finned Tube |
| S30400 Stainless Steel U Shaped Tube | 304 Stainless Steel Square Tube Mirror Finish |
| Din 1.4301 Material Vacuum Tube | ASTM 6.35*1.24 stainless steel coiled tubing |
| 304 Stainless Steel Rectangular Pipe | 304 Stainless Steel Hypodermic Tubing for Medical Needle |
| Ultra-High Purity Electropolished Stainless Steel 304 Tube | Thin Wall Stainless Steel 304 Tube |
| Din 1.4301 Stainless Steel Annealed Tubing | 304 Stainless Steel Coil Tubing Heat Exchanger |
| SAE J405 Uns S30400 Thin Wall Tubing | 304 Stainless Steel Metric Tubing |
| 304 Stainless Steel Seamless Square Tubing | Large Diameter 304 Stainless Steel Tube |
| 304 Stainless Steel Lined Pipe | Corrugated 304 Stainless Steel Tube for Gas and oil |
| ASTM A269 stainless steel coiled tubing | 304 Stainless Steel Instrumentation Tubing |
| 9.52*1.24MM Coiled Tubing | 304 Stainless Steel Square Tubing |
| High-pressure 304 Stainless Steel Water Pipe | Stainless Steel 304 Hexagonal Pipe |
| Jis 304 Stainless Steel Coil Tubing | Stainless Steel 304 Boiler Tube |
Super Duplex 2507 is designed for highly corrosive conditions and applications requiring high strength. With its high molybdenum, chromium, and nitrogen content, it provides exceptional resistance to pitting, crevice corrosion, chloride stress corrosion cracking, erosion corrosion, and acid attacks, alongside excellent weldability.
The coiled tubes conform to standard ASTM A269 and ASTM A249 specifications. They are available in various grades including TP304, TP316L, 304, 316, 310S, 2205, 825, 625, and Super Duplex 2507.
The common outer diameter (OD) range is between 6.52mm and 20mm, with wall thicknesses spanning from 0.2mm to 2mm. General tolerances are ±0.1mm for OD, ±10% for wall thickness, and length deviation around -0/+6mm.
Depending on customer specification and sizing needs, individual continuous coil lengths typically range from 300 meters up to 3500 meters per coil.
These coiled tubes are widely used in refrigeration systems, evaporators, condensers, liquid and gas transport lines, beverage processing machinery, oil & gas instrumentation, and water heating systems.
Coiled tubes are available in soft, half-hard, or soft bright annealed states. To ensure safe transport, they are packed on iron pallets, wooden pallets, or enclosed in poly bags.
