304L 304 Stainless Steel Tube ASTM A312 Easy Processing φ 6.35mm-323.9mm for Automobile Exhaust 304 Stainless Steel Pipes

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, EN
• Model NO.: 304 stainless steel pipe
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Hot Rolled
• Surface Treatment: Pickling
• Thickness: 0.3mm-100mm
• Length: 2000mm-9000mm
• Surface: Pickling, Polishing, Ba
• Delivery State: Solution Annealing
• Transport Package: Wooden Box + Strapping
• Specification: OD 6.35mm-OD 1219mm
• Trademark: Daxun
• Origin: China
• Production Capacity: 10000ton

Product Description

Product Description

Product Parameters

 

304 Stainless Steel Seamless Pipes Standards	ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156
304 Seamless Aerospace Tubing	AMS 5564, AMS 5565, AMS 5567, AMS 5569, AMS 5695 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506)
WELDED & DRAWN 304 Stainless Steel Aerospace Tubing	AMS 5564, AMS 5565, AMS 5566, AMS 5567, AMS 5569 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506)
ASTM A312 Stainless Steel Pipe Typical Manufacturing Specifications	ASTM A213,ASTM A312,ASME B36.19,AMS 5647,AMS 5566,AMS 5569,AMS 6845,BS 10216 Pt 5,ASTM A269,BS 3605 Pt 1,ASTM A632,NFA 49-117,NFA 49-217,Mil-T 8504,Mil-T 8606,or as per customer specifications.
Austenitic Stainless Steel 304 Pipes Seamless Tube Size	3.35 mm OD To 630 mm OD
304 Stainless Steel Welded Tube Size	6.35 mm OD To 1219 mm OD
ASTM A312 TP 304 Stainless Steel Seamless Pipes Swg & Bwg	10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
SS 304 Pipe Schedule	SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Stainless Steel 304 Seamless Pipes Wall thickness	0.020″ -0.220″, (special wall thicknesses available)
SS 304 tube Length	Single Random, Double Random, Standard & Cut length
Stainless Steel UNS S30400 ERW Pipes Finish	Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Stainless Steel DIN 1.4301 Pipes Form	Round Pipes/ Tubes, Square Pipes/ Tubes, Rectangular Pipe/ Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes, Straight or 'U' bent Tubes, Hollow, LSAW Tubes Etc.
304 Stainless Steel Welded Pipe Type	Seamless, ERW, EFW, Welded, Fabricated
Electropolished	(EP) Electropolished for Ultra High Purity Systems
Non-Electropolished	(BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems
I.D. Surface Finish Options	5, 7 & 10 µin. Ra
304 Stainless Steel Round Pipe JIS	8A to 250A
304 Stainless Steel Square Pipe Tolerances	In accordance with: ASTM: A269 & A632, JIS: G 3459
304 stainless steel tubing End	Plain End, Beveled End, Treaded, Ends are suitable for orbital welding
ASTM A312 TP 304 Stainless Steel Marking	All 304 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.)
304 stainless steel tubing Application	Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger
Value Added Service	Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Specialize in	Stainless Steel 304 Capillary Tube & Other Odd Size
	Stainless Steel 304 Heat Exchanger & Condenser Tubes
	Stainless Steel 304 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition
	ASTM A312 TP304 tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition
Marking & Traceability	Each Stainless Steel 304 Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end.
Test Certificate	Manufacturer Test Certificate according to EN 10204 3.1 B
	Laboratory Test Certificate from Govt. Approved Lab.
	Under Third Party Inspection
Testing & Inspection	Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing
We can also cut, thread, and groove ASTM A312 TP304 erw to meet your specifications

 

Detailed Photos

Daxun Alloys proudly stands as a premier supplier of stainless steel tubing, adept at satisfying diverse pipe requirements. Our Type 304 stainless steel, an austenitic nickel alloy with ultra-low carbon content, is perfect for welding tasks. Known as '18/8' stainless steel due to its 18% chromium and 8% nickel composition, it showcases remarkable strength, oxidation resistance, superior formability, and moderate machinability. For those needing heightened resistance to intergranular corrosion, our 304L stainless steel is the ideal choice, offering superior resilience in harsh corrosive environments. Daxun Alloys offers 304 stainless steel pipes in both seamless and welded variants, available in various diameters. Additionally, we provide precision pipe cutting services to meet your exact length specifications. Specializing in stainless steel pipes, Daxun is your go-to source for all your piping needs. Contact us today!

Stainless Steel Welded Tubes

Daxun crafts stainless steel tubular products by roll-forming and fusion-welding stainless steel strips along the longitudinal seam. Our cutting-edge welding process ensures the highest integrity, as it utilizes no filler metal, maintaining the purity of the weld.

Daxun ensures swift and punctual delivery of 304 stainless steel pipe products, supported by an integrated system encompassing production capacity, information flow, and logistics. Our real-time data synchronization between order and logistics systems, strategic processing center locations near ports and rivers, and efficient storage, transportation, and loading processes guarantee timely task completion.

 

Stainless Steel Drawn Tube

Our stainless steel tubular products undergo a meticulous process of rolling and then re-drawing to achieve the final size. This technique is ideal for producing thick-walled, large-diameter tubes, offering cost benefits over seamless tubes. All our drawn tubes are bright annealed, ensuring superior quality.

Daxun Advantages

• Varieties: We provide an extensive range of sizes and grades, from small to large diameter stainless steel pipes, including 304L, 316L, and more.
• Flexibility: Whether your project demands seamless or welded steel pipes, our versatile stainless steel pipes cater to your precise requirements.
• Quality Standards: Our stainless steel pipes adhere to rigorous standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unparalleled reliability and performance.
• Custom Orders: Need unique sizes of stainless steel pipes? We offer a vast array of customization options at competitive prices, with convenient online ordering.

 

Stainless Steel Seamless Tube

Our stainless steel seamless tubes are meticulously drawn from hollow sections created through piercing or hot extrusion processes. These tubes are perfect for applications requiring high diameter-to-wall thickness ratios and boast excellent external dimensional tolerances.

Quality, Delivery, Inspection

• Daxun conducts comprehensive quality assurance tests, including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous tests ensure our materials meet all application requirements.
• Throughout production, we meticulously measure product diameter, thickness, and surface quality. Our standard delivery timeframe is 7-15 days, extending up to 20 days for special size products. We strictly adhere to contractually agreed delivery schedules.
  Our delivery timelines are rigorously maintained according to contract specifications.
• We welcome third-party inspections at our factory, offering full support to customer-appointed agencies.
• We provide free samples to customers for thorough testing.
• We facilitate comprehensive factory inspections, either on-site or via video.

 

 

Daxun Stainless Steel Pipe Manufacturing Capabilities

Our advanced forming capabilities are second to none, featuring state-of-the-art extrusion and cold working assets for the manufacturing of tube and pipe products. We proudly operate one of the world's largest pilger mills and employ unique hydroforming processes to produce superior fittings.

 

Daxun's Unmatched Pipe Processing Expertise

As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a seamless one-stop-shop experience, capable of handling anything from entire projects to specific machining jobs. Our comprehensive services include Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and Specialized Services.

 

Bigger, Better Pipe Solutions by Daxun

With vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the most extensive pipe extrusion capabilities globally. Our state-of-the-art technology allows us to manufacture the longest lengths and largest diameter pipes in the industry.

 

Jiangsu Daxun Alloy Co., Ltd. powers the generation market by supplying ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and various products for nuclear, coal-fired, renewable energy, and combined cycle applications.

304/304L/304LN/304H Pipe and Tubing
Sizes				Standard Tolerances
Products	OD	Wall	Lengths and/or coils	Grades	OD	Wall	Lengths
Welded Austenitic Steel Boiler, Super Heater, Heat-Exchangers & Condenser Tubes	3/16″ (4.76 mm) to 4″ (101.6 mm)	0.020″ (0.51 mm) to 0.220″ (5.59 mm)	Random or cut lengths up to 90′ (27.4 m) Coils to 1-1/2″ OD	304/304L/	Under 1″ (25.4 mm) ±0.004″ (0.10 mm) 1″ (25.4 mm) to	±10%	Randoms up to +2″ (50.8 mm) Cuts +1/8″ (3 mm) -0″ Coils to 80,000′ (24,384 m)
Specifications: ASTM-A249, ASME-SA249, ASTM-A688, ASME-SA688	Metric sizes available			304LN/304H	1-1/2″ (38.1 mm) ±0.006″ (0.15 mm)
					>1-1/2″ (38.1 mm) to 2″ (50.8 mm) ±0.008″ (0.20 mm)
					>2″ (50.8 mm) to 2-1/2″ (63.5 mm) ±0.010″ (0.25 mm)
					>2-1/2″ (63.5 mm) to 3″ (76.2 mm) ±0.012″ (0.30 mm)
					3″ (76.2 mm) to 4″ (101.6 mm) ±0.015″ (0.38 mm)
Pressure & Corrosion Tubing	1/16″ (1.59 mm) to 4″ (101.6 mm)	0.010″ (0.25 mm) to 0.220″ (5.59 mm)	Random or cut lengths up to 90′ (27.4 m) Coils to 1-1/2″ OD	304/304L/	<1-1/2″ (38.1 mm) ±0.005″ (0.13 mm) 1-1/2″ (38.1 mm) to 3″ (76.2 mm) ±0.010″ (0.25 mm)	±10%	Randoms up to +2″ (50.8 mm) Cuts +1/8″ (3 mm) -0″ Coils to 80,000′ (24,384 m)
Meets or exceeds requirements for welded	Metric sizes available			304H	3-1/2″ (88.9 mm) to 4″ (101.6 mm) ±0.015″ (0.38 mm)
Specifications: ASTM-A269, ASTM-A1016, and ASTM-A632
Beverage Tubing	1/4″(6.35 mm) 5/16″ (7.94 mm) 3/8″ (9.53 mm) 1/2″ (12.7 mm)	0.020″ (0.51 mm) to 0.028″ (0.71 mm)	Random or cut lengths up to 40′ (12.2 m)	304/304L/	±0.005″ (0.13 mm)	±10%	Randoms up to +2″ (50.8 mm) Cuts +1/8″ (3 mm) -0″ Coils to 15,000′ (4,572 m)
	Metric sizes available			304H
Instrumentation Tubing	1/16″ (1.59 mm) to 1/2″ (12.7 mm)	0.010″ (0.25 mm) to 0.065″ (1.65 mm)	Random or cut lengths up to 40′ (12.2 m)	304/304L/	±0.005″ (0.13 mm)	±10%	Randoms up to +2″ (50.8 mm) Cuts +1/8″ (3 mm) -0″
Specifications: ASTM-A269 and ASTM-A632	Metric sizes available			304H
Food/Dairy Tubing, Pharmaceutical/ BioPharmaceutical Tubing, High Purity Tubing, Ultra High Purity Tubing	1/2″ (12.7 mm) to 8″ (203.2 mm)	0.049″ (1.24 mm) to 0.109″ (2.77 mm)	20′ (6.1 m) stock lengths. Other lengths available upon request.	304/304L	1/2″ (12.7 mm) ±0.005″ (0.13 mm)	±10%	+1/8″ (3 mm) -0″
					3/4″ (19.1 mm) ±0.005″ (0.13 mm)	±10%	+1/8″ (3 mm) -0″
					1″ (25.4 mm) ±0.005″ (0.13 mm)	±10%	+1/8″ (3 mm) -0″
					1-1/2″ (38.1 mm) ±0.008″ (0.20 mm)	±10%	+1/8″ (3 mm) -0″
					2″ (50.8 mm) ±0.008″ (0.20 mm)	±10%	+1/8″ (3 mm) -0″
					2-1/2″ (63.5 mm) ±0.010″ (0.25 mm)	±10%	+1/8″ (3 mm) -0″
					3″ (76.2 mm) ±0.010″ (0.25 mm)	±10%	+1/8″ (3 mm) -0″
					4″ (101.6 mm) ±0.015″ (0.38 mm)	±10%	+1/8″ (3 mm) -0″
					6″ (152.4 mm) ±0.030″ (0.76 mm)	±10%	+1″ (25.4 mm) -0″
					8″ (203.2 mm) +0.061″ (1.55 mm), -0.031″ (0.79 mm)	±10%	+1″ (25.4 mm) -0″

Packaging & Shipping

Company Profile

 

Chemical Composition of 304 Stainless Steel Pipe: Our 304 stainless steel pipes boast an impeccable chemical makeup, featuring a perfect blend of Chromium and Nickel, ensuring optimal corrosion resistance and durability. Each pipe is meticulously crafted to maintain consistency in quality.

Composition of 304/304L/304LN/304H tubing and pipe
Grade	304	304L	304LN	304H
UNS Designation	S30400	S30403	S30453	S30409
Carbon (C) Max.	0.08	0.030*	0.03	0.04 - 0.10
Manganese (Mn) Max.	2	2	2	2
Phosphorous (P) Max.	0.045	0.045	0.045	0.045
*** (S) Max.	0.03	0.03	0.03	0.03
Silicon (Si) Max.	1	1	1	1
Chromium (Cr)	18.0-20.0	18.0-20.0	18.0-20.0	18.0-20.0
Nickel (Ni)	8.0-11.0	8.0-11.0	8.0-11.0	8.0-11.0
Molybdenum (Mo)	-	-	-	-
Nitrogen (N)	-	-	0.10-0.15	-
Iron (Fe)	Bal.	Bal.	Bal.	Bal.
Other Elements	-	-	-	-

 

Mechanical Properties of 304 Stainless Steel Pipe: Renowned for their exceptional mechanical properties, our 304 stainless steel pipes offer superior tensile strength, flexibility, and resilience. Engineered to withstand rigorous applications, they provide reliable performance in diverse environments.

	Tensile Strength			Yield Strength
Alloy	UNS Designation	Spec.	psi	MPa	ksi	psi	MPa	ksi	Elongation in 2 inches (min.) %	Grain Size Req.	Max. Hardness	Modulus of Elasticity (x106 psi)	Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)	Thermal Conductivity (BTU-in/ft2-h-°F)
304	S30400	A249, A312	75,000	515	75	30,000	205	30	35	-	90 Rb	28	9.2	116
304L	S30403	A270 A312	70,000	485	70	25,000	170	25	35	-	90 Rb	28	9.2	116
304LN	S30453	A249, A688	75,000	515	75	30,000	205	30	35	-	90 Rb	28	9.2	116
304H	A30409	A249, A312	75,000	515	75	30,000	205	30	35	7 or coarser	90 Rb	28	9.2	116

 

304 Stainless Steel Pipe - All Equivalents: Discover the versatility of our 304 stainless steel pipes, compatible with various international equivalents. Whether domestic or global, our pipes align with stringent standards, ensuring seamless integration into your projects.

Alloy	UNS Designation	Werkstoff NR.	Specifications*
304	S30400	1.4301	A269, A/SA249, A/SA312, A632, A/SA688, A270
304L	S30403	1.4306	A269, A/SA249, A/SA312, A629, A632, A/SA688, A270
304LN	S30453	1.4311	A/SA249, A/SA688
304H	S30409	1.4948	A269, A/SA249, A/SA312, A/SA688
*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.

 

Certifications

Leading Stainless Steel Tube and Pipe Suppliers in China

GENERAL PROPERTIES

• The 304/304L stainless steel pipe by Jiangsu Daxun Alloy Co., Ltd. epitomizes excellence, engineered for superior machinability and uniformity. This exceptional product boasts outstanding corrosion resistance, prolonged lifespan, unparalleled quality, and cost-efficiency. When annealed, the DAXUN 304/304L is non-magnetic, though it may exhibit slight magnetism post cold-working or welding. We deliver it in a solution annealed state, ensuring maximum performance.
• Specifications UNS S30400, UNS S30403 UNS S30400, UNS S30403

APPLICATIONS:

Our DAXUN 304/304L Stainless Steel pipes find versatile applications in both residential and commercial settings, such as:

• Chemical Process Equipment
• Food and Beverage Industry

STANDARDS:

• ASTM/ASME: UNS S30400 / S30403
• EURONORM: 1.4301 / 1.4307

CORROSION RESISTANCE:

• Daxun's 304/304L stainless steel is a universally adaptable material, known for its robust resistance to atmospheric corrosion and various organic and inorganic chemicals. It's also ideal for food and beverages, ensuring safety and longevity.
• This versatile stainless steel has proven indispensable in vacuum processing equipment and specialized instruments where top-notch integrity is crucial.

HEAT RESISTANCE:

• Exhibits impressive oxidation resistance, withstanding intermittent service up to 1600°F and continuous service up to 1690°F.
• However, continuous exposure between 800-1580°F is not recommended if subsequent aqueous corrosion resistance is necessary.

WELDING CHARACTERISTICS:

• Easily weldable using conventional methods, except for oxyacetylene welding.
• For optimal results, AWS E308L/ER308L filler metal should be used with Prodec 304/304L steel.

MACHINABILITY:

• Ensures faster machining speeds, extended tool life, superior part quality, and reduced overall machining costs.

Find the Stainless Steel Tube You Need Right Here

• Daxun Alloy, a foremost stainless steel pipe supplier in China, is the go-to choice for countless domestic and international clients. We pride ourselves on delivering high-quality products, swift delivery across China, and complimentary unlimited cutting services. Order online or via phone to receive your tailored stainless steel pipes promptly.

304 Grade Stainless Steel Pipe

• At Daxun Alloys, we offer a comprehensive range of 304 and 304L grade stainless steel pipes, including specialized plumbing solutions. Our selection ensures you find the perfect fit for your needs.
• Stainless steel pipe is indispensable in both commercial and industrial domains, encompassing fluid piping, automotive manufacturing, construction, and building applications.
• Grade 304 and 304L stainless steel are celebrated for their exceptional properties. Grade 304, the most prevalent, is renowned for its excellent weldability, superior formability, and strong corrosion resistance. Available in bright or satin finishes, our 304-grade pipes cater to varied aesthetic and functional needs.
• Although grade 304L presents more machining challenges compared to grade 304, its heightened corrosion resistance renders it ideal for tough environments, including marine, coastal, and highly industrialized areas.

Wide Choice of Dimensions and Free Cutting

• Whatever your needs, Daxun Alloys has the perfect stainless steel tube tailored specifically for you. Our offerings include versatile lengths of 3 meters and 6 meters, with diameters ranging from 3mm to an impressive 2000mm (Grade 304) and ¾" to 20″ (Grade 304L). Whether you're looking for a small or large diameter, our extensive selection ensures you find the ideal solution for any application.
• If you require a specific length, our complimentary unlimited cutting service, included with every purchase, is at your disposal. Utilizing the latest in bandsaw technology, our precision cutting service guarantees that your stainless steel tube is cut to the exact length you specify. Just provide us with your requirements at the time of ordering. This exceptional service further cements our status as a leading supplier of stainless steel tubes, catering to both domestic and international markets with unmatched quality and precision.