321 Stainless Steel Tube ASME SA269 Corrosion Resistant Od 60.3mm-355.6mm for Natural Gas Transportation 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

ASTM A312 / A358 Stainless Steel 321 Pipe Supplier; 321 / 321H Stainless Steel Seamless Pipe. Connect with us for the premium ASME SA312 321 Stainless Steel Pipe.

Type 321 stainless steel is an exemplary austenitic steel. It shares many of the hallmark properties of Type 304, but with enhanced titanium and carbon content. This results in superior resistance to corrosion and oxidation, coupled with exceptional toughness even in cryogenic environments. The titanium in 321 stainless steel confers numerous benefits: it prevents harmful carbide precipitation in the heat affected zone (HAZ) of welds, offers partial protection against intergranular corrosion, and reduces embrittlement in high-risk welding areas. 321H stainless steel is particularly suited for applications involving exposure to carbide precipitation temperatures (800°F-1500°F) and corrosive atmospheres. Like 304 stainless steel, 321 contains more nickel and is stabilized with titanium, which interacts preferentially with carbon, preventing chromium carbides at grain boundaries and maintaining corrosion resistance during critical temperature exposure. This grade is also highly responsive to cold working, weldable with minimal need for post-weld annealing, and performs outstandingly in various corrosive conditions.

Stainless Steel Welded Tubes

Our stainless steel tubular products, crafted from premium stainless steel strips, are roll-formed and fusion-welded along the longitudinal seam. The advanced welding process employed by Jiangsu Daxun Alloy Co., Ltd. utilizes no filler metal, ensuring the purity and integrity of the final product.

Quick response

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

 

Stainless Steel Drawn Tube

Crafted from rolled stainless steel, our tubular products are then re-drawn to the final size, ideal for producing thick-walled, large diameter tubes not feasible to roll directly. This process offers significant cost savings over seamless tubes, and all drawn tubes are bright annealed for a superior finish.

Daxun Advantages

• Variety: Offering a wide range of sizes and grades from small to large diameter stainless steel pipes, including 304L, 316L, 317L, 321, 310, 347, 2205, and more.
• Flexibility: Whether seamless or welded, our stainless steel pipes are designed to meet your unique project specifications.
  Quality
• Standards: Our stainless steel pipes conform to stringent standards like ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unmatched reliability and performance.
• Custom Orders: In search of special size stainless steel pipes? We offer a variety of custom options at competitive prices and easy online ordering.

 

Stainless Steel Seamless Tube

Our stainless steel seamless tubes, drawn from hollow sections made via piercing or hot extrusion, are perfect for large diameter-to-wall thickness ratios, boasting excellent external dimensional tolerances.

Quality, delivery, inspection

• At Daxun, we subject our products to stringent quality assurance tests, including flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous evaluations ensure that our materials meet the highest standards for your specific applications.
• During the meticulous production process at Jiangsu Daxun Alloy Co., Ltd., we precisely measure the diameter, thickness, and surface of each product to ensure top-notch quality. Our standard delivery time ranges from 7-15 days for most items, with a slight extension up to 20 days for special-sized products.
  Our delivery timelines strictly adhere to the contract, ensuring punctual and reliable service.
• We support the involvement of third-party agencies for factory inspections, providing transparency and confidence in our manufacturing process.
• We offer free samples to customers for thorough testing, enabling them to verify the superior quality of our products firsthand.
• We provide flexible inspection options, including on-site or video factory inspections, to meet our customers' needs.

 

 

Discover Daxun's unparalleled stainless steel pipe manufacturing capabilities.

Our forming capabilities encompass state-of-the-art extrusion and cold working assets, one of the world's largest pilger mills, and unique hydroforming processes to manufacture fittings, ensuring precision and excellence in every product.

 

Explore Daxun's advanced pipe processing capabilities.

As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive one-stop shop. Our full spectrum of services includes straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and other specialized services, handling everything from entire projects to individual machining jobs with expertise.

 

Experience Bigger, Better Pipe Solutions with Daxun.

Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the most expansive pipe extrusion capabilities in the world. This enables us to manufacture pipes with the longest lengths and largest diameters in the industry.

 

Daxun provides the power generation market with an array of products, including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. We cater to nuclear, coal-fired, renewable energy, and combined cycle applications with precision and reliability.

Packaging & Shipping

Company Profile

 

Chemical Composition of 321 Stainless Steel Pipe: Delve into the premium chemical makeup of our 321 stainless steel pipe. Crafted to perfection, this alloy features an optimized balance of elements to ensure unparalleled durability, resistance to extreme conditions, and superior performance across various high-demand environments.

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 robust mechanical properties of our 321 stainless steel pipe. Engineered for excellence, it boasts remarkable tensile strength, exceptional toughness, and an impressive ability to withstand high temperatures, making it the material of choice for the most demanding industrial and aerospace projects.

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: Explore the versatility of our 321 stainless steel pipe and its equivalents. Whether for aerospace pipelines or other high-stress applications, our product's equivalence across various standards guarantees compatibility and reliability, ensuring that you always have the optimal solution for your specific needs.

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

Leading Stainless Steel Tube and Pipe Suppliers in China

GENERAL PROPERTIES

• 321 Stainless Steel Pipe (UNS S32100) is a titanium-stabilized austenitic stainless steel renowned for its outstanding overall corrosion resistance. It stands out with high resistance to intergranular corrosion even after exposure to the chromium carbide precipitation temperature range of 800 - 1500°F (427 - 816°C). The alloy can withstand oxidation up to 1500°F (816°C) and exhibits superior creep and stress rupture properties compared to 304 and 304L steel pipes. Additionally, it maintains impressive low-temperature toughness.
• Stainless Steel Tube 321H (UNS S 32109) is an enhanced version of this alloy, featuring a higher carbon content (0.04 - 0.10). This modification is specifically designed to provide increased creep resistance and strength at temperatures exceeding 1000°F (537°C). Often, the carbon content allows for dual certification of the plate.
• Alloy 321 achieves toughness exclusively through cold working, as it is not amenable to heat treatment. It is readily weldable and can be 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 excellent general corrosion resistance that is comparable to 304 stainless steel.
• Developed for optimal performance within the chromium carbide precipitation range of 1800 - 1500°F (427 - 816°C).
• Effective in most diluted organic acids at moderate temperatures.
• Suitable for use in pure phosphoric acid at low temperatures.
• Operable in up to 10% diluted solutions at elevated temperatures.
• Resistant to polythionic acid stress corrosion cracking in hydrocarbon service.
• Effective 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 can be easily welded and processed using standard shop fabrication practices.

HOT FORMING

• Working temperatures of 2100 - 2300°F (1149 - 1260°C) are ideal for forging, upsetting, and other hot working processes.
• Not suitable for operations at temperatures below 1700°F (927°C).
• Material must be water-quenched or fully annealed post-working to restore maximum corrosion resistance.

COLD FORMING

• Highly ductile and easily formable.

WELDING

• Readily weldable using most standard processes.
• Post-weld heat treatment is unnecessary.

MACHINING

• The hardening rate of 321 makes it less machinable than 410 stainless steel but comparable 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?

• Rapid Delivery: We pride ourselves on delivering top-notch 321/321H Stainless Steel Pipes and Tubes with unparalleled speed, ensuring our clients receive the highest quality services promptly.
• Tailored Dimensions: Our expertise allows us to process Stainless Steel 321/321H Tubes to meet both standard and custom specifications, providing versatile solutions for every requirement.
• Competitive Pricing: Experience the perfect blend of quality and affordability with our 321/321H Stainless Steel Pipes, offered at highly competitive prices.
  Premium Quality: Our unwavering commitment guarantees top-tier SS 321/321H Pipes and Tubes, meticulously crafted to meet the highest standards of excellence.
  Comprehensive Certifications: Our products are backed by complete certification, including Mill TC, Test Reports, and Hydrostatic Tests from NABL accredited labs, assuring utmost reliability.
• Extensive Range of Fittings and Flanges: As a leading manufacturer, we offer a wide array of 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, providing a one-stop solution for all your needs.

Outstanding Features

• The SS321/SS321H stainless steel welded pipe, crafted from pure stainless steel alloy, boasts exceptional attributes such as remarkable durability, flexibility, toughness, and a long lifespan. It offers high tensile strength, precise dimensional accuracy, and a superior surface finish. Additionally, it excels in resistance to pitting, corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Comprehensive Testing

• Our rigorous testing protocols include Positive Material Identification, Intergranular Corrosion Test, Pitting Resistance Test, Mechanical Test, Chemical Test, Macro/Micro Test, and Flattening/Flaring Test, ensuring unparalleled quality and reliability.

Thorough Documentation Provided

• We provide extensive documentation for our products, including heat treatment charts, quality assurance plans, commercial invoices, certificates of origin, raw material test reports, and material traceability reports. Additional documents such as MTC as per EN 10204/3.1B, TC including radiography test reports, and third-party test reports are also available.