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Sihe Steel
Sihe Steel
| Elements | C | Mn | Mo | Cr | Ni | Cu | Ti | P | S | Si | V | Al |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | 8.000 | 20.000 | - | - | - | - | - | - | - | - |
| Max | 0.100 | 0.500 | 10.000 | 23.000 | 58.000 | - | 0.400 | 0.015 | 0.015 | - | - | 0.400 |
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Tensile Strength | 827 MPa min | 120,000 psi min |
| Yield Strength | 414 MPa min | - |
| Total Elongation Under Load | 20.000 % | - |
| Hardness | 35 Max HRC | - |
| Square Steel Tube (mm) | Rectangular Steel Tube (mm) | Round Steel Tube (mm) |
|---|---|---|
| 10×10×0.6~3.0 | 10×20×0.6~3.0 | 6x0.6~1.0 |
| 15×15×0.6~3.0 | 20×30×0.6~3.0 | 12x0.6~1.5 |
| 20×20×0.6~3.0 | 20×40×0.6~3.0 | 13x0.6~1.5 |
| 25×25×0.6~3.0 | 25×50×0.6~3.5 | 16x0.6~2.0 |
| 30×30×0.6~3.5 | 30×50×0.6~3.5 | 19x0.6~3.0 |
| 40×40×0.6~3.5 | 40×60×0.6~3.5 | 20x0.6~3.0 |
| 50×50×0.6~3.5 | 40×80×0.6~3.5 | 22x0.6~3.0 |
| 60×60×0.6~3.5 | 60×80×1.0~6.0 | 25x0.6~3.0 |
| 70×70×0.6~3.5 | 50×100×1.0~6.0 | 27x0.6~3.0 |
| 75×75×0.6~3.5 | 60×120×1.0~6.0 | 32x0.6~3.0 |
| 80×80×1.0~6.0 | 80×120×2.0~8.0 | 40x0.6~3.5 |
| 100×100×2.0~8.0 | 80×160×2.0~8.0 | 38x0.6~3.0 |
| 120×120×2.0~8.0 | 100×150×2.0~8.0 | 48x0.6~3.5 |
| 150×150×2.0~8.0 | 100×200×2.0~8.0 | 60x0.6~3.5 |
| 200×200×4.0~16.0 | 150×250×4.0~12.0 | 76x0.6~3.5 |
| 250×250×4.0~16.0 | 200×300×4.0~16.0 | 89x1.0~6.0 |
| 300×300×4.0~16.0 | 300×400×4.0~16.0 | 104x1.0~6.0 |
| 400×400×4.0~16.0 | 300×500×4.0~16.0 | 114x1.0~6.0 |
| Grade | Carbon, max | Manganese, max | Phosphorus, max | Sulfur, max | Silicon, max | Nickel | Chromium | Molybdenum | Titanium | Columbium + Tantalum |
|---|---|---|---|---|---|---|---|---|---|---|
| Austenitic | ||||||||||
| 301 | 0.15 | 2.00 | 0.040 | 0.030 | 1.00 | 6.0–8.0 | 16.0–18.0 | ... | ... | ... |
| 302 | 0.15 | 2.00 | 0.040 | 0.030 | 1.00 | 8.0–10.0 | 17.0–19.0 | ... | ... | ... |
| 304 | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 8.0–11.0 | 18.0–20.0 | ... | ... | ... |
| 304L | 0.035A | 2.00 | 0.040 | 0.030 | 1.00 | 8.0–13.0 | 18.0–20.0 | ... | ... | ... |
| 305 | 0.12 | 2.00 | 0.040 | 0.030 | 1.00 | 10.0–13.0 | 17.0–19.0 | ... | ... | ... |
| 309S | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 12.0–15.0 | 22.0–24.0 | ... | ... | . . . |
| 309S-Cb | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 12.0–15.0 | 22.0–24.0 | ... | ... | B |
| 310S | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 19.0–22.0 | 24.0–26.0 | ... | ... | ... |
| 316 | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 10.0–14.0 | 16.0–18.0 | 2.0–3.0 | ... | ... |
| 316L | 0.035A | 2.00 | 0.040 | 0.030 | 1.00 | 10.0–15.0 | 16.0–18.0 | 2.0–3.0 | ... | ... |
| 317 | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 11.0–14.0 | 18.0–20.0 | 3.0–4.0 | ... | ... |
| 321 | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 9.0–13.0 | 17.0–20.0 | ... | C | ... |
| 330 | 0.15 | 2.00 | 0.040 | 0.030 | 1.00 | 33.0–36.0 | 14.0–16.0 | ... | ... | ... |
| 347 | 0.08 | 2.00 | 0.040 | 0.030 | 1.00 | 9.0–13.0 | 17.0–20.0 | ... | ... | B |
| 429 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50 max | 14.0–16.0 | ... | ... | ... |
| 430 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50 max | 16.0–18.0 | ... | ... | ... |
| 430-Ti | 0.10 | 1.00 | 0.040 | 0.030 | 1.00 | 0.075 max | 16.0–19.5 | ... | 5 × C min | ... |
| 0.75 max | ||||||||||
| U.S.A. | GERMANY (DIN) | GERMANY (W.N.) | FRANCE | JAPAN | ITALY | SWEDEN | U.K. | E.U. | SPAIN | 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 | X 12 CrNi 17-07 | - |
| 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 | X 10 CrNi 18-09 | 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 | X 10 CrNiS 18-09 | - |
| 303 Se | - | - | Z 10 CNF 18-09 | SUS 303 Se | X 10 CrNiS 1809 | - | 303S41 | - | X 10 CrNiS 18-09 | 12KH18N10E |
| 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 | X 6 CrNi 19-10 | 08KH18N10 |
| 304 N | - | - | - | SUS 304N1 | X 5 CrNiN 1810 | - | - | - | - | - |
| 304 H | - | - | - | SUS F 304H | X 8 CrNi 1910 | - | - | - | X 6 CrNi 19-10 | - |
| 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 CrNi 19-10 | 03KH18N11 |
| 304 LN | 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 | X 8 CrNi 18-12 | - |
| XM7 | - | - | 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 | X 6 CrNiMo 17-12-03 | - |
| 316 LN | 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 | 1.4541 | Z 6 CNT 18-10 | SUS 321 | X 6 CrNiTi 1811 | 23 37 | 321S31 | X 6 CrNiTi 18 10 | X 6 CrNiTi 18-11 | 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 | X 6 CrNiNb 18-11 | 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 | X 6 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 | 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 | 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 |
Quality Advantage System:
The quality of our products for the control line in the oil and gas sector is assured not just during the controlled manufacturing process but also by way of finished product testing. Typical tests include:
Our precision stainless steel coil tubes are manufactured to comply with various international standards, including ASTM A-312, ASTM A-269, ASTM A-632, ASTM A-213, DIN 17458, DIN17456, JIS G3463, JIS G3459, and JIS G3448.
The Alloy 625 precision pipe offers a minimum Tensile Strength of 827 MPa (120,000 psi min), a minimum Yield Strength of 414 MPa, an elongation of 20%, and a maximum hardness of 35 HRC.
We supply tubes in Satin/Hairline finishes (180#, 320#) as well as polished finishes (400#, 600#, 800#) up to a Mirror surface finish, depending on application needs.
We offer outer diameters from 0.1mm to 8mm and thicknesses from 0.05mm to 2.1mm. Typical tolerances are +/- 0.2mm for outer diameter, +/- 10% for thickness, and +/- 10mm for length (or customized based on customer request).
Products undergo rigorous quality testing, including non-destructive tests, hydrostatic testing, surface finish controls, dimensional accuracy measurements, flare/coning tests, and mechanical/chemical property validation.
Capillary tubes are widely used in medical devices, industrial temperature sensors, precision instrumentation, electronics, automotive antennas, chemical fiber machinery, boilers, and pressure vessels.
