321 Stainless Steel Tube ASTM A312 Easy Processing Od 6.35mm-323.9mm for Automobile Exhaust Systems 321 Stainless Steel Pipe

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, EN
• Model NO.: 321 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

 

WERKSTOFF NR.1.4541 SS 321 Specification	Stainless Steel 321, ASTM A312 TP 321 SS
DIN 1.4541 SS 321 Pipe	321 Stainless Steel Pipe
SS 321 Seamless Pipe Size	4 to 630mm W. T.: 0.5 to 50mm
321L Stainless Steel Welded Pipe Size	5.0 mm - 1219.2 mm
SS UNS S32103 EFW Pipe size	5.0 mm - 1219.2 mm
ASTM A312 Stainless Steel Pipe Swg & Bwg	10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
SA312 TP321 Pipe Schedule	SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
DIN 1.4541 SS 321 Swg & Bwg	10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
321l Stainless Steel Tube wall thickness	0.020″ -0.220″, (special wall thicknesses available)
321 Steel Length	Single Random, Double Random, Standard & Cut length Pipe & Tube
ASTM A312 TP 321 Stainless Steel Finish	Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
UNS S32100 Form	Round, Hydraulic, 'U' bent or Hollow,LSAW, Boiler, Straight Pipe, Clad Pipe, Rectangular, Square Pipe Etc
Stainless Steel 321 Type	Welded, Seamless, ERW, EFW, Fabricated Pipe, 'U' bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Tube etc
321 Steel End	Plain End, Beveled End, Treaded Pipe
SS 321 Marking	All 321l Stainless Steel Pipe are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.)
ASTM A 358 SS 321 Application	Oil Pipe & Tube, Gas Pipe & Tube, Fluid Pipe & Tube, Boiler Pipe & Tube, Heat exchanger Tube
ASTM A312 TP 321 SS Value Added Service	Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
ASTM A 312 SS 321 Specialize in	Alloy 321 Large Diameter Pipe
	WERKSTOFF NR.1.4541 SS 321 Capillary Tube
	SS TP321 Heat Exchanger &
	TP321 SS Condenser Tube
SS TP321 Test Certificate	Manufacturer Test Certificate
	Laboratory Test Certificate from Govt. Approved Lab.
	Under Third Party Inspection
Manufacturers of 321 Stainless Steel Pipe	Baosteel Stainless Steel
	Taigang Stainless Steel
	Qingshan Stainless Steel
	ATI of the United States
	Nippon Steel
	Posco of South Korea
Marking	All 321 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.)
321/321H stainless steel tubing 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

 

Detailed Photos

ASTM A312 / A358 Stainless Steel 321 Pipe Supplier; 321 / 321H Stainless Steel Seamless Pipe. Reach out to us for ASME SA312 321 Stainless Steel Pipe inquiries.

Type 321 stainless steel, an austenitic marvel, shares numerous qualities with Type 304 but boasts increased levels of titanium and carbon. This grade offers unparalleled corrosion and oxidation resistance, with remarkable toughness even in cryogenic conditions. The titanium in 321 stainless steel provides exceptional benefits: it prevents detrimental carbide precipitation in the heat affected zone (HAZ) of welds, offers some protection against intergranular corrosion, and reduces embrittlement in high-risk weld areas. 321H stainless steel is ideal for applications where parts are exposed to carbide precipitation temperatures (800°F-1500°F) and corrosive environments. Compared to 304 stainless steel, 321 contains more nickel and is stabilized with titanium, which preferentially binds with carbon, preventing chromium carbide formation at grain boundaries. This feature preserves corrosion resistance by minimizing chromium depletion near the grain borders during high-temperature exposure. This grade excels in cold working, is easily weldable, and typically does not require post-weld annealing to sustain its impressive performance in various corrosive settings.

Exquisite Stainless Steel Welded Tubes

Our stainless steel tubular products, crafted from premium stainless steel strips, are roll-formed and precision fusion-welded along the longitudinal seam. Daxun's superior welding process stands out as it excludes the use of any filler metal, ensuring top-notch weld integrity.

Rapid and Reliable Responses

• Exceptional Formability and Weldability
• Efficient Performance at Temperatures Up to 900°C
• Resilient Against Acids, Alkalis, and Low Temperatures
• Excellent Response to Cold Work Hardening
• Outstanding Welding Characteristics
• Superior Corrosion Resistance
• High Creep and Stress Rupture Properties; Grade: AISI 321/321H-S32100

 

Premium Stainless Steel Drawn Tubes

Our stainless steel tubular products undergo rolling and re-drawing to achieve final sizing. This technique is perfect for creating thick-walled, large-diameter tubes that cannot be directly rolled to size, offering cost savings over seamless tubes. Each drawn tube is meticulously bright annealed for superior quality.

The Daxun Edge

• Variety: From small to large diameter, we provide an extensive range of stainless steel pipes, including grades like 304L, 316L, 317L, 321, 310, 347, 2205, and beyond.
• Flexibility: Whether you require seamless or welded steel pipes, our offerings are tailored to meet your specific project needs.
  Uncompromising Quality
• Standards: Our stainless steel pipes adhere to rigorous standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unmatched reliability and performance.
• Custom Orders: Need stainless steel pipes in unique sizes? We offer a myriad of custom options at competitive prices, with the convenience of online ordering.

 

Remarkable Stainless Steel Seamless Tubes

Our stainless steel tubular products are meticulously drawn from hollow sections created via piercing or hot extrusion processes. The seamless tubes are ideal for applications requiring large diameter-to-wall thickness ratios and boast excellent external dimensional tolerances.

Quality, Delivery, and Inspection Excellence

• Daxun conducts a series of stringent quality assurance tests, including flattening, pitting, resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous evaluations ensure the material's suitability for its intended applications.
• During our meticulous production process, we ensure precision in measuring the diameter, thickness, and surface quality of each product. Standard delivery times span 7-15 days, but for specialty sizes, this period may extend to 20 days.
  Our delivery schedule strictly adheres to the agreed contract terms.
• We welcome customer-approved third-party agencies to conduct factory inspections.
• We offer complimentary samples to customers for thorough testing.
• We support both on-site and video factory inspections for our customers.

 

 

Exceptional stainless steel pipe manufacturing capabilities by Daxun.

Our cutting-edge forming capabilities include advanced extrusion, cold working processes, one of the world's largest pilger mills, and unique hydroforming techniques to manufacture high-quality fittings.

 

Daxun's comprehensive pipe processing capabilities.

As a vertically integrated manufacturer, we provide a one-stop shop capable of handling entire projects or specific machining tasks. Our services include Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and Specialized Services.

 

Superior Pipe Solutions for a Better Future.

With vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun offers unparalleled pipe extrusion capabilities, allowing us to produce the longest lengths and largest diameters in the industry.

 

Daxun provides the power generation sector with essential products such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units, serving nuclear, coal-fired, renewable energy, and combined cycle applications.

Packaging & Shipping

Company Profile

 

Chemical Composition of 321 Stainless Steel Pipe: Discover the superior chemical integrity of our 321 stainless steel pipes, meticulously crafted to deliver unparalleled performance. The balanced composition of chromium, nickel, and titanium reinforces its remarkable resistance to corrosion and oxidation, making it an ideal choice for a wide range of demanding applications. Our stringent quality control measures ensure that each pipe offers consistent properties for reliable and long-lasting service.

Composition 321/321H Pipe and Tubing
Grade	321	321H
UNS Designation	S32100	S32109
Carbon (C) Max.	0.08	0.04-0.10
Manganese (Mn) Max.	2	2
Phosphorous (P) Max.	0.04	0.04
*** (S) Max.	0.03	0.03
Silicon (Si) Max.	0.75	0.75
Chromium (Cr)	17.0-20.0	17.0-20.0
Nickel (Ni)	9.0-12.0	9.0-12.0
Molybdenum (Mo)	-	-
Nitrogen (N)	0.1 Max.	0.1 Max.
Iron (Fe)	Bal.	Bal.
Other Elements	Ti=5(C) to 0.70%	Ti=4(C) to 0.60%

 

Mechanical Properties of 321 Stainless Steel Pipe: Experience the exceptional strength and resilience of our 321 stainless steel pipes, engineered to endure the toughest conditions. These pipes boast impressive tensile strength, remarkable yield strength, and outstanding elongation capabilities, ensuring optimal performance in high-stress environments. Jiangsu Daxun Alloy Co., Ltd. guarantees that each pipe meets rigorous mechanical property standards, offering you unmatched reliability and efficiency.

Physical Properties of 321/321H Alloys in the Annealed Condition at -20°F to +100°F
			Tensile Strength			Yield Strength
Alloy	UNS Designation	Spec.	psi	MPa	ksi	psi	MPa	ksi	Elongation in 2 inches (min.) %	Grain Size Req.	Maximum Harndess	Modulus of Elasticity (x106 psi)	Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)	Thermal Conductivity (BTU-in/ft2-h-°F)
321	S32100	-	75,000	515	-	30,000	205	-	35	-	-	29	9.2	-
321H	S32109	-	75,000	515	-	30,000	205	-	35	7 or coarser	-	29	9.2	-

 

321 Stainless Steel Pipe ALL EQUIVALENT: At Jiangsu Daxun Alloy Co., Ltd., we offer a comprehensive range of 321 stainless steel pipe equivalents, tailored to meet diverse industrial requirements. Our products are designed to seamlessly integrate into your existing systems, providing consistent and superior performance. With a focus on quality and precision, our equivalent pipes ensure compatibility and durability, fortifying your operations with the best in class.

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
321	S32100	321S31	58B, 58C	1.4541	X6CrNiTi18-10	2337	SUS 321
321H	S32109	321S51	-	1.4878	X10CrNiTi18-10	-	SUS 321H

 

Certifications

Premier Suppliers of Stainless Steel Tubes and Pipes in China

GENERAL PROPERTIES

• The 321 Stainless Steel Pipe (UNS S32100) is a titanium-stabilized austenitic stainless steel known for its excellent overall corrosion resistance. It stands out with its high resistance to intergranular corrosion following exposure to the chromium carbide precipitation temperature range of 800 - 1500°F (427 - 816°C). This alloy resists oxidation up to 1500°F (816°C) and boasts superior creep and stress rupture properties compared to 304 and 304L steel pipes. Additionally, it demonstrates impressive low-temperature toughness.
• The Stainless Steel Tube 321H (UNS S 32109) showcases a higher carbon content (0.04 - 0.10), designed to enhance creep resistance and strength at temperatures exceeding 1000°F (537°C). Typically, the carbon content supports dual certification.
• Alloy 321's strengthening relies solely on cold working, as it is not amenable to heat treatment. It can be efficiently welded and processed using conventional shop fabrication methods.

COMMON APPLICATIONS

• Aerospace - Piston Engine Manifolds
• Chemical Processing
• Expansion Joints
• Food Processing - Equipment and Storage
• Petroleum Refining - Polythionic Acid Service
• Waste Treatment - Thermal Oxidizers

ASTM/ASTE : UNS S32100

CORROSION RESISTANCE

• Exhibits commendable general corrosion resistance, comparable to 304.
• Engineered for applications within the chromium carbide precipitation range of 1800 - 1500°F (427 - 816°C).
• Suitable for use in most diluted organic acids at moderate temperatures.
• Effective in pure phosphoric acid at lower temperatures.
• Can handle up to 10% diluted solutions at elevated temperatures.
• Resists polythionic acid stress corrosion cracking in hydrocarbon services.
• Effective in chloride or fluoride-free caustic solutions at moderate temperatures.
• Not recommended for use in chloride solutions, even in minimal concentrations, or in sulfuric acid service.

PROCESSING

Easily welded and processed by standard shop fabrication practices.

HOT FORMING

• Recommended working temperatures are between 2100 - 2300°F (1149 - 1260°C) for forging, upsetting, and other hot working processes.
• Not suitable for working at temperatures below 1700°F (927°C).
• Material must undergo water quenching or full annealing post-working to restore maximum corrosion resistance.

COLD FORMING

• Very ductile and forms with ease.

WELDING

• Compatible with most standard welding processes.
• Post-weld heat treatment is generally unnecessary.

MACHINING

• While the hardening rate of 321 makes it less machinable than 410 stainless steel, it remains similar to 304 in machinability.

Why Choose Stainless Steel Pipe 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, WNR 1.4878 Manufactured by Daxun?

• Short Lead Time - Experience unparalleled efficiency with Jiangsu Daxun Alloy Co., Ltd. We pride ourselves on our rapid delivery of premium quality 321/321H Stainless Steel Pipes and Tubes, ensuring that our clients receive their orders at lightning speed.
• Customized Sizes: Tailor your requirements with Jiangsu Daxun Alloy Co., Ltd. We specialize in processing Stainless Steel 321/321H Tubes, providing both standard and non-standard stainless steel pipes to meet your unique specifications.
• Best Prices: Discover exceptional value with our competitively priced 321/321H Stainless Steel Pipes. Jiangsu Daxun Alloy Co., Ltd. ensures that you receive the best rates without compromising on quality.
  Quality Products: At Jiangsu Daxun Alloy Co., Ltd., quality is paramount. We guarantee the excellence of our SS 321/321H Pipes and Tubes, upholding the highest standards at all times.
  Full Certifications: Rest assured with our certified products. Our offerings come with comprehensive certification including Mill TC, Test Reports, and Hydrostatic Tests conducted by NABL approved labs for your complete peace of mind.
• Fittings and Flanges: Simplify your procurement process with Jiangsu Daxun Alloy Co., Ltd. We manufacture an extensive range of 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, allowing you to source all your requirements from a single, reliable vendor.

Features it possesses

• Our SS321/SS321H stainless steel welded pipes boast exceptional attributes due to their pure stainless steel alloy composition. They exhibit remarkable durability, flexibility, toughness, and a long service life. With high tensile strength, dimensional accuracy, and a superior surface finish, they also offer enhanced resistance to pitting, corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Testing

• Comprehensive testing ensures reliability: Positive material identification test, intergranular corrosion test, pitting resistance test, mechanical test, chemical test, macro/micro test, and flattening/flaring test are meticulously conducted to uphold our quality standards.

Documents provided-

• Essential documents supplied: We provide a heart treatment chart, quality assurance plan, commercial invoice, certificate of origin, raw material test report, material traceability report, and more. Additional documents such as MTC as per EN 10204/3.1B, TC including radiography test report, and third-party test reports are also included for thorough validation.