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Sihe Steel
Sihe Steel
Super alloys have the ability to function at very high temperatures and mechanical stress, and also where high surface stability is required. They have good creep and oxidation resistance, and can be produced in a variety of shapes. They can be strengthened by solid-solution hardening, work hardening, and precipitation hardening.
Super alloys consist of a number of elements in a variety of combinations to achieve the desired result. They are further classified into three groups such as cobalt-based, nickel-based, and iron-based alloys.
Incoloy(r) alloy 825 is an austenitic nickel-iron-chromium alloy which is added with other alloying elements in order to improve its chemical corrosion resistant property. The following datasheet will provide more details about Incoloy(r) alloy 825.
| 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 \ O.D (mm) | 3.0-4.0 | 4.01-6.00 | 6.01-8.00 | 8.01-10.0 | 10.01-12.7 | 12.71-19.05 | 19.05-25.4 |
|---|---|---|---|---|---|---|---|---|
| Stainless Steel Coiled Tubes/ Coil Tubing | 0.30 - 0.40 | √ | √ | √ | ||||
| Stainless Steel Coiled Tubes/ Coil Tubing | 0.41 - 0.50 | √ | √ | √ | √ | |||
| Stainless Steel Coiled Tubes/ Coil Tubing | 0.51 - 0.60 | √ | √ | √ | √ | √ | ||
| Stainless Steel Coiled Tubes/ Coil Tubing | 0.61 - 0.70 | √ | √ | √ | √ | √ | √ | |
| Stainless Steel Coiled Tubes/ Coil Tubing | 0.71 - 1.00 | √ | √ | √ | √ | √ | √ | √ |
| Stainless Steel Coiled Tubes/ Coil Tubing | 1.01 - 1.20 | √ | √ | √ | √ | √ | √ | |
| Stainless Steel Coiled Tubes/ Coil Tubing | 1.21 - 1.50 | √ | √ | √ | √ | |||
| Stainless Steel Coiled Tubes/ Coil Tubing | 1.51 - 2.0 | √ | √ | √ |
| Element | Content (%) |
|---|---|
| Nickel, Ni | 38 - 46 |
| Iron, Fe | 22 |
| Chromium, Cr | 19.5 - 23.5 |
| Molybdenum, Mo | 2.50 - 3.50 |
| Copper, Cu | 1.50 - 3.0 |
| Manganese, Mn | 1 |
| Titanium, Ti | 0.60 - 1.20 |
| Silicon, Si | 0.50 |
| Aluminum, Al | 0.20 |
| Carbon, C | 0.050 |
| Sulfur, S | 0.030 |
The physical properties of Incoloy(r) alloy 825 are given in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.14 g/cm³ | 0.294 lb/in³ |
| Melting point | 1385°C | 2525°F |
The mechanical properties of Incoloy(r) alloy 825 are highlighted in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (annealed) | 690 MPa | 100000 psi |
| Yield strength (annealed) | 310 MPa | 45000 psi |
| Elongation at break (annealed prior to test) | 45% | 45% |
The thermal properties of Incoloy(r) alloy 825 are outlined in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (at 20-100°C/68-212°F) | 14 µm/m°C | 7.78 µin/in°F |
| Thermal conductivity | 11.1 W/mK | 77 BTU in/hr.ft².°F |
| U.S.A. AISI | GERMANY DIN 17006 | GERMANY W.N. 17007 | FRANCE AFNOR | JAPAN JIS | ITALY UNI | SWEDEN SIS | U.K. BSI | E.U. EURONORM | RUSSIA |
|---|---|---|---|---|---|---|---|---|---|
| 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 | 12KH18N9 |
| 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 | - | 12KH18N10E |
| 304 | X 5 CrNi 18 10 / X 5 CrNi 18 12 | 1.4301 / 1.4303 | Z 6 CN 18-09 | SUS 304 | X 5 CrNi 1810 | 23 32 | 304S15 / 304S16 | X 6 CrNi 18 10 | 08KH18N10 / 06KH18N11 |
| 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 | 03KH18N11 |
| - | 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 Kd | - |
| 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 | - | 20KH23N18 |
| 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 | 10KH23N18 |
| 314 | X 15 CrNiSi 25 20 | 1.4841 | Z 12 CNS 25-20 | - | X 16 CrNiSi 2520 | - | - | X 15 CrNiSi 25 20 | 20KH25N20S2 |
| 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 | 03KH17N14M2 |
| 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 | 08KH18N10T |
| 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 | 08Kh13 |
Production of stainless steel coiled tube and stainless steel pipe features processing capabilities including bending, stretching, saw cutting, stamping, and polishing. These products are widely used in bathroom pendants, hanger accessories, hardware, condensation water heating equipment, and hotel supplies. The production line utilizes advanced bright annealing technology for online softening treatment. In addition, compression testing, flaring, bending tests, 100% hardness tests, stretching tests, and air tightness tests are performed to ensure reliable quality.
There is no risk of impurities often associated with welded coiled tubing. Advantages include:
| Schedule 9.52mm Type alloy 825 Stainless Steel Pipe | Schedule 9.52*1.24mm alloy 825 Stainless Steel coiled Pipe |
| ASTM 5564 1/8” alloy 825 Seamless Tubing coiled tubing | Polished alloy 825 Stainless Steel coiled Tubing |
| alloy 825 Stainless Steel Threaded Pipe | SUS alloy 825 Stainless Steel Rectangular Tube |
| JIS SUS alloy 825 Seamless Coiled Tubes | alloy 825 SS Round Tube suppliers |
| alloy 825 Welded Tubes for oil and Gas | AMTM alloy 825 Seamless Tube suppliers |
| ASTM A312 alloy 825 Coiled Tubing | Stainless Steel Inox alloy 825 Capillary Tubing |
| ASTM A312 Gr alloy 825 Aerospace tubes | AMS 5566 alloy 825 High Pressure Tube |
| SA213 alloy 825 Sighting Tube | alloy 825 Stainless Steel Polished Pipes |
| ASTM A312 alloy 825 Elliptical and Oval Tubes | AMS 5567 alloy 825 seamless steel coiled Tube |
| ASTM A213 alloy 825 Condenser Tube | AMS 5563 alloy 825 1/4” *0089” Seamless seamless steel tubes |
| ASTM A269 alloy 825 straight tube boiler | AMS 5563 alloy 825 Welded furnace tube |
| ASTM A249 alloy 825 Mirror Tube | AMS 5564 alloy 825 1/8” Welded Tubing, High-Pressure Hydraulic |
| UNS alloy 825 Pitot Tube stockist | Stainless Steel alloy 825 Seamless Round Tubing |
| ASTM A358 alloy825 Polished Tubing | alloy 825 Stainless Steel Ornamental Tube |
| Stainless Steel alloy825 Exhaust Pipe | alloy 825 Stainless Steel Spiral Pipe |
| ASME SA213 alloy825 Perforated Tube | WERKSTOFF NR. 1.4301 alloy 825 Flexible Tube |
| SA 688 alloy825 Finned Tube | SS alloy825 seamless steel coiled Tube |
| Din 1.4301 AISI alloy825 Perforated Exhaust Tube | Stainless Steel alloy825 Hypodermic Tubing |
| Din W.-Nr. 1.4301 Aisi alloy825 Corrugated Tube | SS alloy825 Honed Tube |
| Material 1.4301 Aisi alloy825 Slotted Handrail Tube | SS alloy825 Thin Wall Tube |
| ASTM alloy825 3/8”*0.035” stainless steel coiled tube | Alloy825 Stainless Steel Threaded Pipe |
| Stainless Steel alloy825 Ornamental Pipe | Stainless Steel alloy825 Fin Tube / Finned Tube |
| Salloy 825 Stainless Steel U Shaped Tube | Alloy825 Stainless Steel Square Tube Mirror Finish |
| Din 1.4301 825 Material Vacuum Tube | ASTM alloy825 6.35*1.24 stainless steel coiled tubing |
| Alloy825 Stainless Steel Rectangular Pipe | Alloy825 Stainless Steel Hypodermic Tubing for Medical Needle |
| Ultra-High Purity Electropolished Stainless Steel alloy825 Tube | Thin Wall Stainless Steel alloy825 Tube |
| Din 1.4301 alloy825 Stainless Steel Annealed Tubing | Alloy825 Stainless Steel Coil Tubing Heat Exchanger |
| SAE J405 Uns alloy825 Thin Wall Tubing | Alloy825 Stainless Steel Metric Tubing |
| Alloy825 Stainless Steel Seamless Square Tubing | Large Diameter alloy825 Stainless Steel Tube |
| Alloy825 Stainless Steel Lined Pipe | Corrugated alloy825 Stainless Steel Tube for Gas and oil |
| ASTM A269 alloy825 stainless steel coiled tubing | Alloy825 Stainless Steel Instrumentation Tubing |
| Alloy825 9.52*1.24MM Coiled Tubing | Alloy825 Stainless Steel Square Tubing |
| High-pressure alloy825 Stainless Steel Water Pipe | Stainless Steel alloy825 Hexagonal Pipe |
| Jis alloy825 stainless Steel Coil Tubing | Stainless Steel alloy825 Boiler Tube |
Seamless coiled tubing is highly preferred in critical applications because it eliminates the risk of impurities often associated with welded tubing. It improves system safety and reliability, offers greater corrosion resistance, reduces the number of fittings required (preventing leaks), and lowers installation costs due to simpler setups.
The coiled tubes comply with standard specifications including ASTM A269 and ASTM A249. Available material grades cover a wide spectrum including TP304, TP316L, 304, 316, 310S, 2205, alloy 825, and alloy 625.
Alloy 825 is an austenitic nickel-iron-chromium alloy. It contains approximately 38-46% Nickel (Ni), 22% Iron (Fe), 19.5-23.5% Chromium (Cr), 2.50-3.50% Molybdenum (Mo), 1.50-3.0% Copper (Cu), and 0.60-1.20% Titanium (Ti), along with trace elements of Manganese, Silicon, Aluminum, Carbon, and Sulfur.
Coiled tubing is available in outer diameters ranging from 6.52mm to 25.4mm with wall thicknesses between 0.2mm and 2mm. Dimensional tolerances are precisely controlled: OD tolerance is ±0.1mm, wall thickness tolerance is ±10%, and coil lengths range from 300 to 3500 meters per coil.
These coiled tubes are widely used in critical instrumentation, petrochemical systems, boilers, heat exchangers, food and beverage processing, refrigeration equipment, CNG piping, desalination and geothermal plants, as well as oil and gas extraction equipment.
Incoloy alloy 825 features a density of 8.14 g/cm³ and a melting point of 1385°C (2525°F). In its annealed state, it delivers a tensile strength of 690 MPa, a yield strength of 310 MPa, and an elongation at break of 45%, making it exceptionally strong and stable under high thermal and mechanical stress.
