Stainless steel pipe is one of the more standardized materials in the building and engineering industries. Stainless Steel Seamless Pipes is a hollow steel bar, a large number of pipes used for conveying fluids, such as oil, gas, water, gas, steam, heat exchanger, mechanical machine.
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Specifications
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Standard
ASTM A-312, ASTM A-269, ASTM A-632, ASTM A-213, DIN 17458, DIN 17456, JIS G3463, JIS G3459, JIS G3448
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Material Grade
201 / 202 / 304 / 316
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Outer Diameter
0.1mm - 8mm
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Thickness
0.05mm - 2.1mm
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Length
2440mm, 3050mm, 5800mm, 6000mm, 6100mm, or custom
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Tolerance
OD: +/- 0.2mm | Thick: +/- 10% | Length: +/- 10mm
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Surface
Satin / Hairline (180#, 320#)
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Polish
400#, 600#, 800# or Mirror surface
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Application
Processed into railings, handrails, doors and windows
Packing:
Plastic bag / woven packing (Custom detail packing available upon request)
Chemical & Physical Properties (316 Stainless Steel Precision Pipe)
| 316 Stainless Steel Capillary Tube |
| Grade |
UNS |
C max |
Cr |
Ni |
Mo |
Others |
| 0.03 |
| TP 316L |
S31600 / S31603 |
0.03 |
17.5 |
13 |
2.1 |
0.1 |
| Grade |
Yield Strength, psi (MPa) |
Tensile Strength, psi (MPa) |
Elongation % |
| TP 316L |
32,000 (220) |
75,000 (515) |
35 |
| Grade |
UNS |
PRE1 |
CPT2 °F (°C) |
Max H2S3 psi |
CO24 |
| TP 316L |
S31600/S31603 |
24 |
95 (35) |
No limit |
+ |
Industrial Applications
Suitable for hydraulic pneumatic components, textile chemical fiber machinery, medical and chemical industries, food hygiene, instrumentation, boilers, pressure vessels, and other mechanical and electronic industries.
Steel Tube Dimensions Chart
| 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 |
Physical Properties of Stainless Steel Polishing Pipe
| Grade |
Composition, % |
| C, max |
Mn, max |
P, max |
S, max |
Si, max |
Ni |
Cr |
Mo |
Ti |
Cb + Ta |
| 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 | ... |
Stainless Steel Coiled Tubing / Coiled Tubes Material Grade Reference
| U.S.A. (AISI) |
GERMANY (DIN 17006) |
GERMANY (W.N.) |
FRANCE (AFNOR) |
JAPAN (JIS) |
ITALY (UNI) |
SWEDEN (SIS) |
U.K. (BSI) |
E.U. (EURONORM) |
| 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 |
| 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 |
| 304L | 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 |
| 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 |
| 316L | 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 |
| 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 |
Factory Overview
Quality Advantage
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:
✔
Non-destructive tests
✔
Hydrostatic tests
✔
Surface finish controls
✔
Dimensional accuracy measurements
✔
Flare and coning tests
✔
Mechanical and chemical property testing
Capillary Tube Applications
✦Medical device industry
✦Temperature-guided industrial control & sensor tubes
✦Pen industry core tubing
✦Micro-tube antennas & precision small-diameter tubes
✦Electronic small-diameter capillary tubes
✦Jewelry needle punch
✦Watch components & picture-frame instrumentation
✦Car and bar antennas using tubes
✦Laser engraving equipment structural tubes
✦Fishing gear & accessories
✦Dietary industry capillary pipes
✦Mobile phone and computer styluses
✦Heating pipe and oil industries
✦Printers & silent box needles
✦Double-melt window-coupled tubes
✦Industrial small-diameter precision tubes
✦Precision dispensing needles
✦Microphone, headphones, and microphone casing tubes
Product Gallery
Frequently Asked Questions (FAQ)
Q1: What standard specifications do the TP316L precision pipes comply with?
A1: Our stainless steel precision pipes conform to several international standards including ASTM A-312, ASTM A-269, ASTM A-632, ASTM A-213, DIN 17458, DIN 17456, JIS G3463, JIS G3459, and JIS G3448.
Q2: What is the maximum carbon composition of TP316L stainless steel?
A2: TP316L is a low-carbon version of 316 stainless steel, featuring a maximum carbon content of 0.03% to provide enhanced weldability and corrosion resistance.
Q3: What are the standard outer diameter and thickness dimensions available?
A3: The outer diameter of our precision pipes ranges from 0.1mm to 8mm, with wall thicknesses spanning from 0.05mm to 2.1mm. Custom lengths are also available upon request.
Q4: What surface finishes can be provided on these precision tubes?
A4: We offer satin/hairline finishes (180#, 320#) as well as polished finishes (400#, 600#, 800#) up to a full mirror surface.
Q5: What quality verification tests are conducted on the finished products?
A5: To guarantee quality, our pipes undergo various testing procedures, including hydrostatic testing, non-destructive testing, dimensional checking, surface finish control, and mechanical/chemical property verifications.
Q6: What options are available for product packaging?
A6: Standard packaging includes plastic bags and woven packing wraps. Customized packaging solutions can be implemented according to specific customer requirements.
Sihe Steel
