Wholesale 304 stainless steel welded pipe Suppliers, Factories

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Wholesale 304 stainless steel welded pipe Suppliers, Factories

Stianless Steel Pipe /TUBE 1. : Grade :201 202 304 304l 316 316l 409 409H 410 430 etc 2. Standard:ASTM DIN JIS AISI GB 3.Surface: 2B BA NO.4 Mirror 320# 380# 400#600# 800# 4.Length :6M 11.5 M 12M or As Per your requirment. 5.OD :Round Tube 9.52-219MM Retangle :10*10-150-150 6.Inner packing :Plastic Bag 7.Outer Packing: Carton /Woven/Wooden Packaging 8.Od:+/- 0.2mm, Thickness: +/- 0.02mm

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Product Description

304 stainless steel welded pipe stainless steel coil tube stainless steel tube coil stainless steel coil tubing stainless steel coil pipe stainless steel coil tube suppliers stainless steel coil tube manufacturers stainless steel pipe coil

Specification: stainless steel welded polishing pipe

Basic Parameter

Type: Welded

Standard: ASTM A554 JIS, DIN

Grade: 201, 202, 304, 304L, 316, 316L, 409, 430, etc.

Sizing & Thickness

Round pipe: OD 8-219mm

Square Pipe: OD 10x10mm - 150x150mm

Rectangle Pipe: 10x20mm to 120x180mm

Thickness: 0.2-4.0mm

Surface & Length

Pipe surface: 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, 8K

Pipe length: 5.8m, 6M, 11.85M, 12m

Application Fields

1. Decoration Usage

Road, bridge handrail, railing, bus stop, airport and gym.

2. Construction and Ornament

Structural elements, interior design, and exterior architectural applications.

3. Industry Area

Petroleum, food, chemical, paper, fertilizer, fabric, aviation and nuclear industries.

Dimensions Table

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, %
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

▼ Stainless Steel Coiled Tubing / Coiled Tubes Material Grade Cross Reference

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)
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 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
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
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				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
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
403	X 6 Cr 13	1.4000	Z 12 C 13	SUS 403	X 12 Cr 13	23 02	403S17	X 10 Cr 13
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
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

Factory Overview

Quality Advantage

The quality of our products for the control line in 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 & chemical testing

Application Capillary Tube

➤1) Medical device industry

➤2) Temperature-guided industrial temperature control, sensors, thermometer tubes

➤3) Pens care industry core tube

➤4) Micro-tube antennas, small precision stainless steel antennas

➤5) Various electronic small-diameter stainless steel capillaries

➤6) Jewelry needle punches

➤7) Watch component tubes

➤8) Car antenna tubes, bar antennas

➤9) Laser engraving equipment tubes

➤10) Fishing gear, accessories, and Yugan extensions

➤11) Food/diet industry capillary tubing

➤12) Mobile phone and computer stylus components

➤13) Heating pipes, oil industry applications

➤14) Printers, silent box needle tubing

➤15) Double-melt stainless steel tubes in window-coupling

➤16) Various industrial small-diameter precision stainless steel tubes

➤17) Precision dispensing needles

➤18) Microphone, headphones and communication tube components

Product Showcase

Frequently Asked Questions (FAQ)

What steel grades do you provide for welded polishing pipes?

We supply various stainless steel grades including 201, 202, 304, 304L, 316, 316L, 409, and 430, matching different specifications and international standard codes.

What dimensional options are available for square, rectangular, and round tubes?

Round pipes are available in OD 8-219mm; square pipes in OD 10x10mm to 150x150mm; and rectangular pipes in 10x20mm to 120x180mm. The wall thickness ranges from 0.2mm to 4.0mm.

What surface finish variations can be requested?

We offer a wide range of surfaces, including 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, and 8K.

In which industries are these stainless steel tubes typically used?

They are highly utilized in structural decoration (railings, handrails, transport stations), heavy construction, and core industrial areas like petroleum, chemical, nuclear, and aviation.

How is the quality of the control line and coiled tubing tested?

Every product undergoes extensive testing including non-destructive testing, hydrostatic testing, surface finish inspections, dimensional accuracy checks, flare/coning tests, and mechanical/chemical analysis.

What are the primary applications of stainless steel capillary tubes?

Precision capillary tubes are essential for medical devices, temperature control sensors, electronic stylus pens, laser engraving setups, communication devices, and various precision industrial equipment.