China ASTM A312 304 stainless steel welded pipe Manufacturers, Quotes

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China ASTM A312 304 stainless steel welded pipe Manufacturers, Quotes

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

ASTM A312 Stainless Steel 304 Welded Pipe

ASTM A312 welded pipes, Stainless Steel Welded Pipes, Stainless Steel ERW Pipes, and SS ERW Pipes. ERW Pipes are being found in a widespread range of applications such as in Petrochemical, Chemical, Oil & Gas, Refinery, Fertilizer, Automotive, Bearing, Power, and Structural Mechanical applications. These welded pipes are provided in different grades, thicknesses, and sizes as per tailored needs.

Stainless Steel Coil Products

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

Types of Stainless Steel Welded Pipes

304 Stainless steel welded pipe
304 AISI SS Welded Pipes
304 DIN Stainless Steel Welded Pipe
304 ASME SS ERW Pipes
304 Stainless Steel ERW Pipes
304 Steel Welded Pipes
304 SS ERW Pipes
304 ASTM A312 Stainless Steel Welded pipe

ASTM A312 Stainless Steel 304 Welded Pipe Specification

Item:

stainless steel welded polishing pipe

Type:

Welded, EFW, ERW

Standard:

ASTM A312 / ASTM SA312

Grade:

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

Size:

Round pipe: OD 8-219mm
Square Pipe: OD 10x10mm - 150x150mm
Rectangle Pipe: 10x20mm to 120x180mm

Thickness:

0.2 - 12.7.0mm

Pipe Surface:

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

Pipe Length:

5.8m, 6M, 11.85M, 12m

End:

Plain End, Beveled End

General 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)

Dimensions & Physical Properties

Steel Tube Sizes 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.	GERMANY	GERMANY	FRANCE	JAPAN	ITALY	SWEDEN	U.K.	E.U.	SPAIN	RUSSIA
AISI	DIN 17006	W.N. 17007	AFNOR	JIS	UNI	SIS	BSI	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	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 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	X 6 CrNi 19-10	08KH18N10 06KH18N11
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
	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
			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	X 5 CrNiMo 17 13 3	1.4436	Z 6 CND 17-12	SUS 316	X 5 CrNiMo 1713	23 43	316S33	X 6 CrNiMo 17 13 3	X 6 CrNiMo 17-12-03
316 F	X 12 CrNiMoS 18 11	1.4427
316 N				SUS 316N
316 H				SUS F 316H	X 8 CrNiMo 1712				X 5 CrNiMo 17-12
316 H					X 8 CrNiMo 1713				X 6 CrNiMo 17-12-03
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	X 2 CrNiMo 17-12-03	03KH17N14M2
	X 2 CrNiMoN 17 12 2	1.4406	Z 2 CND 17-12-Az	SUS 316LN	X 2 CrNiMoN 1712
316 L	X 2 CrNiMo 18 14 3	1.4435	Z 2 CND 17-13		X 2 CrNiMo 1713	23 53	316S13	X 3 CrNiMo 17 13 3	X 2 CrNiMo 17-12-03	03KH16N15M3
	X 2 CrNiMoN 17 13 3	1.4429	Z 2 CND 17-13-Az		X 2 CrNiMoN 1713	23 75
	X 6 CrNiMoTi 17 12 2	1.4571	Z6 CNDT 17-12		X 6 CrNiMoTi 1712	23 50	320S31	X 6 CrNiMoTi 17 12 2	X 6 CrNiMoTi 17-12-03	08KH17N13M2T 10KH17N13M2T
	X 10 CrNiMoTi 18 12	1.4573			X 6 CrNiMoTi 1713		320S33	X 6 CrNiMoTI 17 13 3	X 6 CrNiMoTi 17-12-03	08KH17N13M2T 10KH17N13M2T
	X 6 CrNiMoNb 17 12 2	1.4580	Z 6 CNDNb 17-12		X 6 CrNiMoNb 1712			X 6 CrNiMoNb 17 12 2		08KH16N13M2B
	X 10 CrNiMoNb 18 12	1.4583			X 6 CrNiMoNb 1713			X 6 CrNiMoNb 17 13 3		09KH16N15M3B
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	X 6 CrNiTi 18-11	08KH18N10T
321 H				SUS 321H	X 8 CrNiTi 1811		321S20		X 7 CrNiTi 18-11	12KH18N10T
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
347 H				SUS F 347H	X 8 CrNiNb 1811				X 7 CrNiNb 18-11
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 X 10 Cr 13 X 15 Cr 13	1.4000 1.4006 1.4024	Z 12 C 13	SUS 403	X 12 Cr 13	23 02	403S17	X 10 Cr 13 X 12 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
	X 10 CrAl 7	1.4713	Z 8 CA 7					X 10 CrAl 7
	X 10 CrAl 13	1.4724			X 10 CrAl 12					10Kh13SYu
	X 10 CrAl 18	1.4742						X 10 CrSiAl 18		15Kh18SYu
409	X 6 CrTi 12	1.4512	Z 6 CT 12	SUH 409	X 6 CrTi 12		409S19	X 5 CrTi 12
					X 2 CrTi 12
410	X 6 Cr 13 X 10 Cr 13 X 15 Cr 13	1.4000 1.4006 1.4024	Z 10 C 13 Z 12 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

Factory Display

Quality Control & Capillary Tube Applications

Quality Advantage: The quality of 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 Quality Control Tests Include

1. Non-destructive tests

2. Hydrostatic tests

3. Surface finish controls

4. Dimensional accuracy measurements

5. Flare and coning tests

6. Mechanical and chemical property testing

Application Capillary Tube Areas

1) Medical device industry

2) Temperature-guided industrial temperature control, sensors used pipe, tube thermometer

3) Pens care industry core tube

4) Micro-tube antenna, various types of small precision stainless steel antenna

5) With a variety of electronic small-diameter Stainless steel capillary

6) Jewelry needle punch

7) Watches, picture

8) Car antenna tube, bar antennas using tubes, antenna tube

9) Laser engraving equipment to use stainless steel tube

10) Fishing gear, accessories, Yugan out with possession of

11) Diet with stainless steel capillary

12) All types of mobile phone stylus, a computer stylus

13) Heating pipe industry, oil industry

14) Printers, silent box needle

15) Pull a double-melt stainless steel tube used in window-coupled

16) A variety of industrial small diameter Precision stainless steel tubes

17) Precision dispensing with stainless steel needles

18) Microphone, headphones, and microphone to use stainless steel tube, and so on

Product Gallery

Frequently Asked Questions (FAQ)

Q1: What is the manufacturing standard for ASTM A312 Stainless Steel 304 Welded Pipes?

These pipes are manufactured strictly conforming to the ASTM A312 / ASTM SA312 standard specifications, which govern seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipes.

Q2: In which industries are ERW and welded stainless steel pipes typically utilized?

They are widely applied across various demanding sectors including petrochemical processing, chemical, oil and gas, refinery operations, fertilizer production, automotive manufacturing, bearings, power generation, and structural mechanical systems.

Q3: What surface finish types are available for the ASTM A312 welded polishing pipe?

We offer multiple surface treatments, including 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, and 8K, to fulfill specific aesthetic and corrosion-resistant industrial requirements.

Q4: What quality control tests are executed to ensure product integrity?

Our typical quality assurance regime comprises non-destructive testing (NDT), hydrostatic tests, surface finish verification, dimensional accuracy measurements, flare & coning tests, as well as rigorous mechanical and chemical properties assessments.

Q5: What are the common application areas for precision stainless steel capillary tubes?

Capillary tubes are essential in medical devices, industrial temperature sensors, instrumentation thermometers, micro-antenna electronics, jewelry needle manufacturing, automobile stylus components, printing devices, and various precision structural systems.

Q6: What configuration sizes and shape types are supported for stainless steel welded pipes?

We support round steel pipes (OD 8-219mm), square pipes (OD 10x10mm - 150x150mm), and rectangular pipes (10x20mm to 120x180mm), with wall thicknesses ranging from 0.2mm to 12.7mm.