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Sihe Steel
Sihe Steel
We produce high-quality stainless steel coiled tubing, including Inconel 625 Tubing, which represents premium high-performance alloy tubing options. Alloy 625 Tubing offers exceptional resistance to pitting, crevice corrosion, and stress cracking.
Nickel 625 tubing demonstrates high resistance to a wide range of organic and mineral acids, maintaining good strength at high temperatures. These tubes provide outstanding oxidation resistance up to 1050°C. Known for their resilience against acids—such as nitric, phosphoric, sulfuric, and hydrochloric—as well as alkalis, they facilitate the construction of thin structural components requiring high heat transfer rates. These Alloy 625 Seamless Tubings are primarily applied in oil and gas production processes.
We offer a comprehensive range of dimensions and wall thicknesses in Inconel 625 Seamless Tubing for the aerospace, chemical, and pharmaceutical sectors. For extreme corrosion resistance applications, Alloy 625 Welded tubing is highly suitable and extensively used in aircraft components. Alloy 625 exhaust tubing is also a valuable resource for producing high-quality tubes for oil & gas, food processing, and power generation industries.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
|---|---|---|---|---|---|---|---|---|
| Inconel 625 | 0.10 max | 0.50 max | 0.50 max | 0.015 max | – | 5.0 max | 58.0 min | 20.0 – 23.0 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|---|---|
| Inconel 625 | 8.4 g/cm³ | 1350 °C (2460 °F) | Psi – 135,000, MPa – 930 | Psi – 75,000, MPa – 517 | 42.5 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NA 21 | ХН75МБТЮ | NC22DNB4M | NiCr22Mo9Nb |
| 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 | 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 |
|---|---|---|---|---|---|---|---|---|
| W.T (mm) | ||||||||
| 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 | √ | √ | √ |
Serving demands for reliable stainless steel coiled tubing / coil tubes across the following regions:
| China | Taiwan |
| United States | Canada |
| UK | Bangladesh |
| Japan / South Korea | Mexico / South Africa |
| Iran | Saudi Arabia |
| Indonesia | Kuwait |
| Singapore | Brazil |
| Colombia | Netherlands |
| Germany | Tanzania |
| Malaysia | Israel |
| Nigeria | Spain |
| Iraq | Qatar |
| Turkey | Thailand |
| Oman | Australia |
| Venezuela | UAE |
| U.S.A. (AISI) | GERMANY (DIN) | GERMANY (W.N.) | FRANCE (AFNOR) | JAPAN (JIS) | ITALY (UNI) | SWEDEN (SIS) | U.K. (BSI) | E.U. (EN) | RUSSIA (GOST) |
|---|---|---|---|---|---|---|---|---|---|
| 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 F | X 12 CrNiMoS 18 11 | 1.4427 | - | - | - | - | - | - | - |
| 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 |
| - | X 2 CrNiMoN 17 12 2 | 1.4406 | Z 2 CND 17-12-Az | SUS 316LN | X 2 CrNiMoN 1712 | - | - | - | - |
| 317 | - | - | - | SUS 317 | X 5 CrNiMo 1815 | 23 66 | 317S16 | - | - |
| 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 | - |
| 330 | X 12 NiCrSi 36 16 | 1.4864 | Z 12NCS 35-16 | SUH 330 | - | - | - | - | - |
| 321 | X 6 CrNiTi 18 10 X 12 CrNiTi 18 9 | 1.4541 1.4878 | Z 6 CNT 18-10 | SUS 321 | X 6 CrNiTi 1811 | 23 37 | 321S31 | X 6 CrNiTi 18 10 | 08KH18N10T |
| 329 | X 8 CrNiMo 27 5 | 1.4460 | - | SUS 329J1 | - | 23 24 | - | - | - |
| 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 | 08KH18N12B |
| 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 | - | - | - | - | - | - |
| 403 | X 6 Cr 13 | 1.4000 | Z 12 C 13 | SUS 403 | X 12 Cr 13 | 23 02 | 403S17 | X 10 Cr 13 | 12Kh13 |
| 405 | X 6 CrAl 13 | 1.4002 | Z 6 CA 13 | SUS 405 | X 6 CrAl 13 | - | 405S17 | X 6 CrAl 13 | - |
| 409 | X 6 CrTi 12 | 1.4512 | Z 6 CT 12 | SUH 409 | X 6 CrTi 12 | - | 409S19 | X 5 CrTi 12 | - |
| 410 | X 6 Cr 13 | 1.4000 | Z 10 C 13 | SUS 410 | X 12 Cr 13 | 23 02 | 410S21 | X 12 Cr 13 | 12Kh13 |
| 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 |
✓ Complete quality control integrated directly into the manufacturing process.
✓ Extended continuous tube lengths reaching over 3500M per Coil.
✓ Production technology includes advanced bright annealing for online pipe softening.
Three processing lines dedicated to stainless steel coiled tubing and piping operate to serve global specifications. Supported by over a decade of export operations, processing setups handle specialized bending, stretching, saw cutting, stamping, and polishing. These products are distributed for installations including bathroom fixtures, hanger accessories, hardware, condensation heating arrays, and hot water systems.
With two complete continuous welded tube manufacturing lines using bright annealing technology, testing configurations cover flattening, flaring, bending, hardness checks, tensile testing, and high-pressure air-tightness examinations.
Seamless coiled tubing is highly recommended for critical industrial functions. It removes vulnerability to structural impurities often found in welded seam products.
| Schedule 9.52mm Type 625 Stainless Steel Pipe | Schedule 9.52*1.24mm 625 Stainless Steel coiled Pipe |
| ASTM 5564 1/8” 625 Seamless Tubing coiled tubing | Polished alloy625 Stainless Steel coiled Tubing |
| 625 Stainless Steel Threaded Pipe | SUS alloy625 Stainless Steel Rectangular Tube |
| JIS SUS 625 Seamless Coiled Tubes | alloy625 SS Round Tube suppliers |
| SS 625 Welded Tubes for Oil and Gas | AMTM alloy625 Seamless Tube suppliers |
| ASTM A312 TP625 Coiled Tubing | Stainless Steel Inox alloy625 Capillary Tubing |
| ASTM A312 Gr TP 625 Aerospace tubes | AMS 5566 alloy625 High Pressure Tube |
| SA213 TP 625 Sighting Tube | Type alloy625 Stainless Steel Polished Pipes |
| ASTM A312 TP625 Elliptical and Oval Tubes | AMS 5567 alloy625 seamless steel coiled Tube |
| ASTM A213 TP625 Condenser Tube | AMS 5563 alloy625 1/4” *0.089” Seamless steel tubes |
| ASTM A269 TP625 straight tube boiler | AMS 5563 alloy625 Welded furnace tube |
| ASTM A249 TP625 Mirror Tube | AMS 5564 alloy625 1/8” Welded Tubing, High-Pressure Hydraulic |
| UNS 625 Pitot Tube stockist | Stainless Steel alloy625 Seamless Round Tubing |
| ASTM A358 alloy625 Polished Tubing | alloy625 Stainless Steel Ornamental Tube |
| Stainless Steel alloy625 Exhaust Pipe | alloy625 Stainless Steel Spiral Pipe |
| ASME SA213 alloy625 Perforated Tube | WERKSTOFF NR. 1.4301 625 Flexible Tube |
| SA 688 alloy625 Finned Tube | SS alloy625 seamless steel coiled Tube |
| Din 1.4301 AISI alloy625 Perforated Exhaust Tube | Stainless Steel alloy625 Hypodermic Tubing |
| Din W.-Nr. 1.4301 Aisi alloy625 Corrugated Tube | SS alloy625 Honed Tube |
| Material 1.4301 Aisi alloy625 Slotted Handrail Tube | SS alloy625 Thin Wall Tube |
| ASTM alloy625 3/8”*0.035” stainless steel coiled tube | alloy625 Stainless Steel Threaded Pipe |
| Stainless Steel alloy625 Ornamental Pipe | Stainless Steel alloy625 Fin Tube / Finned Tube |
| Salloy 625 Stainless Steel U Shaped Tube | alloy625 Stainless Steel Square Tube Mirror Finish |
| Din 1.4301 625 Material Vacuum Tube | ASTM alloy625 6.35*1.24 stainless steel coiled tubing |
| alloy625 Stainless Steel Rectangular Pipe | alloy625 Stainless Steel Hypodermic Tubing for Medical Needle |
| Ultra-High Purity Electropolished Stainless Steel alloy2625 Tube | Thin Wall Stainless Steel alloy625 Tube |
| Din 1.4301 alloy625 Stainless Steel Annealed Tubing | alloy625 Stainless Steel Coil Tubing Heat Exchanger |
| SAE J405 Uns alloy625 Thin Wall Tubing | alloy625 Stainless Steel Metric Tubing |
| alloy625 Stainless Steel Seamless Square Tubing | Large Diameter alloy625 Stainless Steel Tube |
| alloy625 Stainless Steel Lined Pipe | Corrugated alloy625 Stainless Steel Tube for Gas and Oil |
| ASTM A269 alloy625 stainless steel coiled tubing | alloy625 Stainless Steel Instrumentation Tubing |
| alloy625 9.52*1.24MM Coiled Tubing | alloy625 Stainless Steel Square Tubing |
| High-pressure alloy625 Stainless Steel Water Pipe | Stainless Steel alloy625 Hexagonal Pipe |
| Jis alloy625 stainless Steel Coil Tubing | Stainless Steel alloy625 Boiler Tube |
