China 202 stainless steel polishing tube Suppliers, Quotes

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China 202 stainless steel polishing tube Suppliers, Quotes

Stianless Steel Pipe /TUBE: 1. : Grade :201 202 304 304l 316 316l 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

202 Stainless Steel Polishing Tube

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Product Specification

Item: Stainless steel polishing pipe
Type: Welded or seamless
Standard: ASTM A554, JIS, DIN
Grade: 201, 202, 304, 304L, 316, 316L, 409, 430, etc.

Size (Round): OD 8-219mm
Size (Square): OD 10x10mm - 150x150mm
Size (Rectangle): 10x20mm to 120x180mm
Thickness: 0.2-4.0mm

Pipe Surface: 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, 8K
Pipe Length: 5.8m, 6M, 11.85M, 12m

Primary Applications

1. Decoration usage (road, bridge handrail, railing, bus stop, airport and gym)

2. Construction and ornament

3. Industry area (petroleum, food, chemical, paper, fertilizer, fabric, aviation and nuclear)

Standard Dimensional Ranges

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

Chemical Composition & Physical Properties

The physical properties and chemical analysis of stainless steel polishing pipe across standard grades:

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 Equivalents

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
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 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
305	-	-	Z 8 CN 18-12	SUS 305	X 8 CrNi 1812	23 33	305S19	X 8 CrNi 18 12
309 S	-	-	-	SUS 309S	X 6 CrNi 2314	-	-	X 6 CrNi 22 13
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
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
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
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

Manufacturing Facility

Quality Advantage & Finished Product Testing

Our control line products for the oil and gas sector undergo a strictly monitored manufacturing process alongside robust testing criteria to ensure maximum reliability:

Non-destructive tests: Complete structural scanning to identify internal flaws.
Hydrostatic tests: High-pressure safety and leak assessments.
Surface finish controls: Ensuring optimal roughness and polish levels.
Dimensional accuracy measurements: Exact outer diameter and wall thickness validation.
Flare and coning tests: Verifying expansion and connection capabilities under mechanical stress.
Mechanical and chemical property testing: Validating tensile strength, elongation, and precise chemical composition.

Capillary Tube Applications

Medical device industry components

Temperature sensors, thermometers & control lines

Core tubes for the pen care industry

Micro-tube antennas & precision signal receivers

Small-diameter electronic capillary systems

Jewelry needles & specialized hole punches

Watch components and high-precision visual parts

Automotive bar & telescopic antenna tubes

Laser engraving and printing equipment parts

High-end fishing gear and accessories

Dietary and food-grade capillary lines

Stylus pens for mobile devices and computers

Industrial heating and oil extraction components

Silent box needle mechanisms in modern printers

Double-melt window-coupled structures

Various industrial small diameter precision tubes

Precision fluid dispensing needles

Microphone, headphone and audio structural tubing

Frequently Asked Questions (FAQ)

What are the size options for 202 stainless steel polishing tubes?

Round pipes are available in outer diameters (OD) from 8mm to 219mm. Square pipes range from 10x10mm to 150x150mm, and rectangular pipes are supplied from 10x20mm up to 120x180mm. Standard wall thicknesses range between 0.2mm and 4.0mm.

Which surface finishes are available for these stainless steel pipes?

We offer various surface treatment options, including 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, and 8K finishes, ensuring compliance with both decorative and industrial demands.

What types of tests are performed to verify the quality of the tubes?

Our products undergo comprehensive evaluation protocols, including non-destructive testing, hydrostatic testing, surface finish profiling, dimensional accuracy verification, flare/coning mechanical testing, and chemical/mechanical property analysis.

Are your products compatible with international standard grades?

Yes, our coiled tubing and polishing pipes comply with major international specifications such as ASTM A554, JIS, and DIN. We provide equivalent material grades matching standards from the USA, Germany, France, Japan, Italy, Sweden, the UK, and the EU.

What are the main application fields for your stainless steel capillary tubes?

Capillary tubes are widely used in medical devices, precision temperature sensors, signal antennas, electronic components, writing tools, jewelry needles, industrial heating systems, printing devices, and audio equipment.