321 Stainless Steel Tube ASME SA269 High Temperature Resistant Corrosion Resistant Od 33.7mm-219.1mm for Nuclear Power 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: Offering 321 / 321H Stainless Steel Seamless Pipes. Contact us to acquire ASME SA312 321 Stainless Steel Pipes for your requirements.

Type 321 stainless steel is an advanced austenitic steel, mirroring many qualities of Type 304 but augmented with higher titanium and carbon content. It provides superior corrosion and oxidation resistance, with exceptional toughness even in cryogenic temperatures. The titanium addition offers multiple benefits: it prevents harmful carbide precipitation in the heat-affected zone (HAZ) during welding, provides partial protection against intergranular corrosion, and mitigates embrittlement in high-risk weld areas. Commonly used in high-temperature applications where parts are heated to 800°F-1500°F and exposed to corrosive conditions, 321 stainless steel remains robust. It is similar to 304 stainless steel but with more nickel and stabilized with titanium, which combines with carbon to prevent chromium carbide formation, maintaining corrosion resistance even at critical temperatures. It hardens well with cold working, is easily weldable, and rarely requires post-weld annealing, ensuring unmatched performance in diverse corrosive environments.

Stainless Steel Welded Tubes

Our stainless steel tubular products are precision roll-formed and fusion-welded from stainless steel strips along the longitudinal seam. Daxun employs a unique welding process that uses no filler metal, ensuring purity and strength.

Quick response

• Outstanding formability and weldability
• Operates efficiently at temperatures up to 900°C
• Resistant to acids, alkalis, and low temperatures
• Responds excellently to cold work hardening
• Superior welding characteristics
• Exceptional corrosion resistance
• High creep and stress rupture properties. Grade: AISI 321/321H-S32100

 

Stainless Steel Drawn Tube

Produced by rolling and re-drawing, our stainless steel tubular products are perfect for thick-walled, large-diameter tubes that cannot be rolled directly to size. This method offers cost savings over seamless tubes while maintaining high quality, with all tubes bright annealed.

Daxun Advantages

• Diverse Range: From small to large diameter, we offer a comprehensive selection of stainless steel pipes in grades including 304L, 316L, 317L, 321, 310, 347, 2205, and more.
• Versatility: Whether you need seamless or welded steel pipes, our products are tailored to meet your specific project requirements.
  Quality
• Standards: Our stainless steel pipes adhere to rigorous standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, guaranteeing reliability and superior performance.
• Custom Orders: Need stainless steel pipes in special sizes? We offer customizable options at competitive prices, with easy online ordering.

 

Stainless Steel Seamless Tube

Our stainless steel seamless tubes are drawn from hollow sections made by piercing or hot extrusion processes, ideal for large diameter-to-wall thickness ratios and ensuring excellent external dimensional tolerances.

Quality, delivery, inspection

• Daxun conducts extensive quality assurance tests including flattening, pitting resistance, mechanical, hardness, material identification, and expansion tests, ensuring our materials meet the highest standards for their intended applications.
• During our meticulous production process, we ensure precision by measuring the diameter, thickness, and surface quality of each product. Our standard delivery time is a swift 7-15 days. For those uniquely sized products, the delivery time extends to a maximum of 20 days to guarantee our high standards.
  Our delivery timelines are strictly adhered to as per the contract agreements, ensuring reliability and trust in our commitments.
• We fully support and encourage third-party inspections at our factory, providing transparency and assurance to our customers.
• We offer complimentary samples to our customers for rigorous testing, allowing firsthand evaluation of our product quality.
• We provide comprehensive on-site or video factory inspections, enabling our clients to witness our production processes and quality control measures in real-time.

 

 

Daxun's Premier Stainless Steel Pipe Manufacturing Capabilities

Our advanced forming capabilities include cutting-edge extrusion and cold working assets for producing superior tube and pipe products. Boasting one of the world's largest pilger mills and unique hydroforming processes, we excel in manufacturing high-quality fittings.

 

Unmatched Pipe Processing Capabilities at Daxun

As a fully vertically integrated manufacturer, Daxun offers a comprehensive one-stop solution for all project needs, be it an entire project or specific machining tasks. Our extensive services include Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and Specialized Services.

 

Superior and Expansive Pipe Solutions

Equipped with both vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun possesses the industry's most extensive pipe extrusion capabilities. This enables us to produce the longest lengths and largest diameter pipes available.

 

Daxun serves the power generation market by supplying an array of products including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our products cater to nuclear, coal-fired, renewable energy, and combined cycle applications, meeting diverse energy sector needs.

Packaging & Shipping

Company Profile

 

Chemical composition of 321 stainless steel pipe: Our 321 Steel Pipe is meticulously crafted, showcasing an outstanding chemical composition that ensures superior performance and high corrosion resistance. This alloy is engineered to meet the most rigorous standards, making it a reliable choice for various demanding applications.

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: The 321 Steel Pipe from Jiangsu Daxun Alloy Co., Ltd. offers exceptional mechanical properties that guarantee durability and dependability. With a robust structure that maintains integrity under extreme conditions, it's ideal for aerospace pipelines and more.

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: Our 321 stainless steel pipe matches or exceeds the quality and performance of equivalent piping solutions. Made to comply with ASTM A312 standards, it ensures optimal functionality and longevity in all applications.

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 Stainless Steel Tube and Pipe Suppliers in China

GENERAL PROPERTIES

• 321 Stainless Steel Pipe (UNS S32100): A titanium-stabilized austenitic stainless steel offering exceptional overall corrosion resistance. With high resilience to intergranular corrosion after exposure to the chromium carbide precipitation range of 800 - 1500°F (427 - 816°C), this alloy resists oxidation up to 1500°F (816°C). It surpasses 304 and 304L steel pipes in creep and stress rupture properties and also boasts impressive low temperature toughness.
• Stainless Steel Tube 321H (UNS S 32109): This variant features a higher carbon content (0.04 - 0.10) designed to enhance creep resistance and strength at temperatures exceeding 1000°F (537°C). The plate's carbon content facilitates dual certification in most scenarios.
• Alloy 321: This alloy can only be strengthened through cold working, not heat treatment, and can be easily welded and processed using standard fabrication techniques.

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

PROCESSING

Alloy 321/H: Easily welded and processed by standard shop fabrication practices.

HOT FORMING

• Recommended working temperatures for forging, upsetting, and other hot working processes are 2100 - 2300°F (1149 - 1260°C).
• This alloy is not suitable for work at temperatures below 1700°F (927°C).
• Water quenching or full annealing after working is essential to regain maximum corrosion resistance.

COLD FORMING

• Highly ductile and forms easily.

WELDING

• Easily welded by most standard processes.
• Post-weld heat treatment is not necessary.

MACHINING

• The hardening rate of 321 makes it 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 our rapid delivery of immaculate 321/321H Stainless Steel Pipes and Tubes, ensuring your projects never face delays.
• Customized Sizes - Tailored to Your Needs: Whether you require standard dimensions or bespoke sizes, our processing capabilities for Stainless Steel 321/321H Tubes cater to your specific requirements effortlessly.
• Best Prices - Exceptional Value: Our competitively priced 321/321H Stainless Steel Pipes offer you outstanding value without compromising on quality.
  Quality Products - Uncompromised Excellence: We guarantee premium quality in every SS 321/321H Pipe and Tube, ensuring consistent performance and reliability.
  Full Certifications - Verified Credibility: Our products are accompanied by complete certification, including Mill TC, Test Reports, and Hydrostatic Tests from NABL approved labs, ensuring you receive verified and reliable materials.
• Fittings and Flanges - Comprehensive Solutions: As manufacturers of 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, we provide the convenience of sourcing all your requirements from a single, trusted vendor.

Features it possesses

• Unmatched Excellence: SS321/SS321H stainless steel welded pipes, crafted from pure stainless steel alloy, boast remarkable features such as durability, flexibility, toughness, and an impressive lifespan. They exhibit high tensile strength, superb dimensional accuracy, and a flawless surface finish. Moreover, they offer exceptional resistance to pitting, corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Testing

• Comprehensive Testing: Our rigorous testing regime includes Positive Material Identification, Intergranular Corrosion Test, Pitting Resistance Test, Mechanical Test, Chemical Test, Macro/Micro Test, and Flattening/Flaring Test, ensuring each pipe meets the highest standards.

Documents provided-

• Essential Documentation: Buyers receive a suite of vital documents, including the Heart Treatment Chart, Quality Assurance Plan, Commercial Invoice, Certificate of Origin, Raw Material Test Report, and Material Traceability Report. Additional documents like MTC as per EN 10204/3.1B, TC including Radiography Test Report, and Third-Party Test Reports are also provided.