321 Stainless Steel Tube ASTM A249 High Temperature Resistance Easy to Process Od 8mm-406mm Bright Used in Heat Exchangers 321 Stainless Steel Pipe

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, EN
• Model NO.: 321 Stainless Steel pipe
• Grade: Ss321 S32100 321
• 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

Premium ASTM A312 / A358 Stainless Steel 321 Pipe Supplier; Offering 321 / 321H Stainless Steel Seamless Pipes. Reach out to us for high-quality ASME SA312 321 Stainless Steel Pipes.

Type 321 stainless steel is a top-tier austenitic alloy. It shares the robust properties of Type 304, enhanced with added titanium and carbon. Type 321 offers fabricators unparalleled corrosion and oxidation resistance, along with remarkable toughness even at cryogenic extremes. Its resilience to oxidation and corrosion is exceptional. Titanium in 321 stainless steel imparts numerous advantageous traits: Prevents harmful carbide precipitation in the weld heat-affected zone (HAZ). Provides partial protection against intergranular corrosion. Mitigates embrittlement in high-risk weld areas. 321H stainless steel is ideal for applications where components are exposed to carbide precipitation temperatures (800°F-1500°F) and corrosive environments. Type 321 mirrors 304 stainless steel but boasts higher nickel content and titanium stabilization. Titanium bonds with carbon, averting chromium carbide formation at grain boundaries, thereby preserving corrosion resistance by minimizing chromium depletion near the grain borders during critical temperature exposure. This grade hardens effectively with cold working, is easily weldable, and seldom requires post-weld annealing, ensuring superior performance in diverse corrosive conditions.

Precision-Crafted Stainless Steel Welded Tubes

Daxun's stainless steel tubular products, crafted from stainless steel strip, are roll-formed and fusion-welded along the longitudinal seam. Our advanced welding process excludes the use of any filler metal, ensuring purity and strength.

Swift and Efficient Responses

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

 

Highly Durable Stainless Steel Drawn Tube

Stainless steel tubular products undergo rolling and re-drawing to achieve final dimensions. This process is perfect for producing thick-walled, large-diameter tubes that can't be rolled directly to size, offering cost savings over seamless tubes. All drawn tubes are bright annealed for premium quality.

Daxun Advantages

• Extensive Variety: From small to large diameter stainless steel pipes, we provide an expansive range of sizes and grades, including 304L, 316L, 317L, 321, 310, 347, 2205, and more.
• Tailored Flexibility: Whether for seamless or welded steel pipes, our lengths are customizable to meet your precise project requirements.
  Unyielding Quality
• Stringent Standards: Our stainless steel pipes adhere to rigorous standards like ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unparalleled reliability and performance.
• Custom Orders: Seeking unique sizes in stainless steel pipes? We offer a plethora of custom options at competitive prices with easy online ordering.

 

Precision Stainless Steel Seamless Tube

Our stainless steel tubular products are meticulously drawn from the hollow section of the tube, crafted via piercing or hot extrusion processes. Stainless steel seamless tubes excel in large diameter-to-wall thickness ratios and exhibit excellent external dimensional tolerances.

Quality, Prompt Delivery, Thorough Inspection

• Daxun conducts a series of stringent quality assurance tests, including flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These ensure the material's suitability for its intended application, guaranteeing top-notch performance.
• During our meticulous production process, we precisely measure the diameter, thickness, and surface finish of each product. Our standard delivery timeframe is a swift 7-15 days. For some uniquely sized products, this period extends seamlessly to 20 days, ensuring impeccable quality.
  Our delivery schedule adheres strictly to contractual agreements, guaranteeing punctuality and reliability every time.
• We wholeheartedly support customer-commissioned third-party agencies to conduct thorough factory inspections, ensuring transparency and trust.
• We are pleased to offer complimentary samples to customers for rigorous testing and validation.
• We facilitate comprehensive inspections, be it on-site or via detailed video tours of our factory, to assure you of our quality and processes.

 

 

Expertise in Stainless Steel Pipe Manufacturing by Daxun

Our forming capabilities are unparalleled, featuring cutting-edge extrusion and cold working technologies for tube and pipe products. We boast one of the world's largest pilger mills and unique hydroforming processes for advanced fittings manufacturing.

 

Advanced Processing Capabilities at Daxun

As a vertically integrated manufacturer, we provide a comprehensive one-stop solution for all your needs, whether it's a full-scale project or a singular machining task. Our extensive services include Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and Specialized Services.

 

Bigger, Better Pipe Solutions by Daxun

Featuring vertical and horizontal presses with capacities ranging from 12,000 tons to an immense 35,000 tons, Daxun offers the most extensive pipe extrusion capabilities globally. This enables us to manufacture the industry's longest lengths and largest diameter pipes, pushing the boundaries of excellence.

 

Daxun is a trusted supplier to the power generation market, providing ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and more, catering to nuclear, coal-fired, renewable energy, and combined cycle applications.

Packaging & Shipping

Company Profile

 

Chemical Composition of 321 Stainless Steel Pipe

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

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 Equivalents

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

Pioneering Stainless Steel Tube and Pipe Suppliers in China

GENERAL PROPERTIES

• 321 Stainless Steel Pipe (UNS S32100) is a titanium-stabilized austenitic stainless steel known for its superior corrosion resistance. It offers exceptional resistance to intergranular corrosion after exposure to chromium carbide precipitation temperatures between 800 - 1500°F (427 - 816°C). The alloy can withstand oxidation up to 1500°F (816°C) and exhibits better creep and stress rupture properties compared to 304 and 304L steel pipes. Additionally, it maintains good low-temperature toughness.
• Stainless Steel Tube 321H (UNS S 32109) is the higher carbon variant (0.04 - 0.10) of this alloy, designed to enhance creep resistance and strength at temperatures exceeding 1000°F (537°C). Typically, the carbon content ensures dual certification.
• Alloy 321 achieves toughness exclusively through cold working and not via heat treatment. It is easily weldable and can be processed using standard shop fabrication techniques.

COMMON APPLICATIONS

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

ASTM/ASTE : UNS S32100

CORROSION RESISTANCE

• demonstrates excellent general corrosion resistance, comparable to 304.
• engineered for use within the chromium carbide precipitation range of 427 - 816°C (800 - 1500°F).
• suitable for use in most diluted organic acids at moderate temperatures.
• effective in pure phosphoric acid at lower temperatures.
• can be applied in up to 10% diluted solutions at elevated temperatures.
• resistant to polythionic acid stress corrosion cracking in hydrocarbon services.
• functional in chloride or fluoride-free caustic solutions at moderate temperatures.
• not advisable for use in chloride solutions, even in minimal concentrations, or in sulfuric acid environments.

PROCESSING

Alloy 321/H can be effortlessly welded and processed using standard shop fabrication methods.

HOT FORMING

• For forging, upsetting, and other hot working processes, recommended working temperatures are between 2100 - 2300°F (1149 - 1260°C).
• The alloy is unsuitable for work at temperatures below 1700°F (927°C).
• Material must be water-quenched or fully annealed post-working to regain maximum corrosion resistance.

COLD FORMING

• Highly ductile and easily formable.

WELDING

• Easily weldable by most standard processes.
• Post-weld heat treatment is typically unnecessary.

MACHINING

• Due to its hardening rate, 321 is less machinable than 410 stainless steel but similar to 304.

Why choose Stainless Steel Pipe 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, WNR 1.4878 stainless steel pipes and tubes manufactured by Daxun?

• Short Lead Time - Experience unparalleled efficiency with Jiangsu Daxun Alloy Co., Ltd., where we pride ourselves on delivering top-tier 321/321H Stainless Steel Pipes and Tubes promptly to our esteemed clients.
• Customized Sizes: Tailor-made solutions are our specialty. We expertly process Stainless Steel 321/321H Tubes to supply both standard and non-standard stainless steel pipes, meeting your precise specifications.
• Best Prices: Enjoy unbeatable value with our competitively priced 321/321H Stainless Steel Pipes, ensuring you receive premium quality without the premium cost.
  Quality Products: We are unwavering in our commitment to excellence, guaranteeing the superior quality of our SS 321/321H Pipes and Tubes at every step.
  Full Certifications: Confidence in every purchase. Our products are accompanied by comprehensive certifications including Mill TC, Test Reports, and Hydrostatic Tests from NABL approved laboratories.
• Fittings and Flanges: Simplify your procurement process with Jiangsu Daxun Alloy Co., Ltd. We manufacture 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, offering a one-stop solution for all your needs.

Features it possesses

• Crafted from pure stainless steel alloy, our SS321/SS321H stainless steel welded pipes boast a myriad of exceptional properties including outstanding durability, flexibility, toughness, high tensile strength, and dimensional accuracy. They feature an excellent surface finish and exhibit formidable resistance to pitting, corrosion, oxidation, stress corrosion cracking, and crevice corrosion, ensuring long-lasting performance.

Testing

• We conduct a comprehensive range of tests including positive material identification, intergranular corrosion, pitting resistance, mechanical, chemical, macro/micro examination, and flattening/flaring tests to ensure unparalleled quality.

Documents provided-

• A suite of essential documents accompanies our products, including a heat treatment chart, quality assurance plan, commercial invoice, certificate of origin, raw material test report, and material traceability report. Additionally, buyers receive MTC as per EN 10204/3.1B, radiography test reports, and third-party test reports for complete transparency and assurance.