321 Stainless Steel Tube ASME SA213 Corrosion Resistant Od 6.35mm-508mm for Food Processing 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. Contact us for premium ASME SA312 321 Stainless Steel Pipe.

Type 321 stainless steel is an advanced austenitic steel that shares many of the desirable properties of Type 304, yet boasts increased titanium and carbon content. This enhancement equips Type 321 with superior corrosion and oxidation resistance, as well as remarkable toughness, even at cryogenic temperatures. With its high resistance to oxidation and corrosion, Type 321 stands out in demanding environments. The addition of titanium provides several notable advantages: it prevents harmful carbide precipitation in the heat-affected zone (HAZ) of the weld, offers partial protection against intergranular corrosion, and reduces embrittlement in high-risk welding areas. Type 321H stainless steel excels in applications where components are heated to carbide precipitation temperatures (800°F-1500°F) and exposed to corrosive atmospheres. While similar to 304 stainless steel, Type 321 contains more nickel and is stabilized with titanium, which preferentially interacts with carbon to prevent the formation of chromium carbides at the grain boundaries. This ensures corrosion resistance by minimizing chromium consumption near grain borders during critical temperature exposure. Type 321 stainless steel hardens efficiently with cold working, is easily weldable, and rarely requires post-weld annealing, maintaining its outstanding performance in various corrosive conditions.

Stainless Steel Welded Tubes

Our stainless steel tubular products, crafted from high-quality stainless steel strips, are roll-formed and fusion-welded along the longitudinal seam. Daxun's welding process is filler metal-free, ensuring seamless integration and high durability.

Quick response

• Exceptional formability and weldability
• Performs efficiently at temperatures up to 900°C
• 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

Our stainless steel tubular products undergo rolling and re-drawing to achieve the final size. This process is perfect for creating thick-walled, large-diameter tubes that cannot be rolled directly, while offering cost savings over seamless tubes. All our stainless steel drawn tubes are bright annealed for optimal performance.

Daxun Advantages

• Variety: From small to large diameter stainless steel pipes, we provide a vast range of sizes and grades, including 304L, 316L, 317L, 321, 310, 347, 2205, and more.
• Flexibility: Whether you require seamless or welded steel pipes, our stainless steel pipe lengths are tailored to meet your specific project needs.
  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: In search of special size stainless steel pipes? We offer a wide array of custom options at competitive prices with convenient online ordering.

 

Stainless Steel Seamless Tube

Our stainless steel tubular products are drawn from the hollow section of the tube, manufactured through piercing or hot extrusion processes. Stainless steel seamless tubes are ideal for applications requiring high diameter-to-wall thickness ratios and offer excellent external dimensional tolerances.

Quality, delivery, inspection

• Daxun conducts multiple quality assurance tests, including flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous tests confirm that the material is fit for the intended application.
• Throughout our meticulous production process, we rigorously measure the diameter, thickness, and surface quality of our products. Our standard delivery timeframe is an efficient 7-15 days. However, for certain special-sized products, this period extends to a maximum of 20 days to ensure top-notch quality.
  Our commitment to punctuality ensures that our delivery timelines strictly adhere to the contractual agreements, guaranteeing reliability and satisfaction.
• We fully support independent third-party agencies conducting thorough inspections at our factory, ensuring complete transparency and trust in our processes.
• We offer complimentary samples to our customers, allowing them to rigorously test and verify the superior quality of our products firsthand.
• We facilitate comprehensive factory inspections, whether on-site or via video, ensuring you can witness our meticulous manufacturing processes up close.

 

 

Unparalleled Manufacturing Excellence in Stainless Steel Pipe Production by Daxun

Our state-of-the-art forming capabilities include advanced extrusion and cold working technologies for tube and pipe production. We boast one of the world's largest pilger mills and utilize unique hydroforming processes for manufacturing high-quality fittings.

 

Cutting-Edge Pipe Processing Excellence by Daxun

As a fully vertically integrated manufacturer, Daxun offers a comprehensive one-stop shop for all your needs. Whether it's an entire project or a specific machining task, we excel in straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.

 

Superior, Expanded Pipe Solutions

With our industry-leading vertical and horizontal presses ranging from 12,000 tons to an impressive 35,000 tons, Daxun provides the most extensive pipe extrusion capabilities globally. This enables us to produce the longest lengths and largest diameter pipes available.

 

Daxun caters to the power generation sector with an array of products including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our offerings support nuclear, coal-fired, renewable energy, and combined cycle applications, ensuring robust and efficient solutions.

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	-

 

Equivalent Grades of 321 Stainless Steel Pipe

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 known for its exceptional corrosion resistance. This steel excels in resisting intergranular corrosion after exposure to the chromium carbide precipitation temperature range of 800 - 1500°F (427 - 816°C). It withstands oxidation up to 1500°F (816°C) and boasts superior creep and stress rupture properties compared to 304 and 304L steel pipes. Additionally, it maintains excellent toughness even at low temperatures.
• Stainless Steel Tube 321H (UNS S 32109) is a higher carbon version of this alloy (0.04 - 0.10), designed to enhance creep resistance and strength at temperatures exceeding 1000oF (537°C). The carbon content typically allows for dual certification.
• Alloy 321 can be toughened exclusively through cold working, not by heat treatment. It is easily welded and processed using standard shop 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.
• Developed for use in the chromium carbide precipitation range of 1800 - 1500°F (427 - 816°C).
• Suitable for use in most diluted organic acids at moderate temperatures.
• Compatible with pure phosphoric acid at lower temperatures.
• Effective in up to 10% diluted solutions at elevated temperatures.
• Resists polythionic acid stress corrosion cracking in hydrocarbon services.
• Utilized in chloride or fluoride-free caustic solutions at moderate temperatures.
• Not recommended for chloride solutions, even in small concentrations, or sulfuric acid service.

Processing

Alloy 321/H can be easily welded and processed using standard shop fabrication practices.

Hot Forming

• Recommended working temperatures for forging, upsetting, and other hot working processes are 2100 - 2300°F (1149 - 1260°C).
• Not suitable for work at temperatures below 1700°F (927°C).
• Must be water quenched or fully annealed after working to regain maximum corrosion resistance.

Cold Forming

• Quite ductile and easily formed.

Welding

• Readily 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 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?

• Short Lead Time - We pride ourselves on delivering top-notch 321/321H Stainless Steel Pipes and Tubes with unmatched speed, ensuring our clients receive the best services in the shortest time possible.
• Customized Sizes: Tailored to perfection, we process Stainless Steel 321/321H Tubes to meet both standard and unique specifications, offering unparalleled flexibility in stainless steel pipe dimensions.
• Best Prices: Our 321/321H Stainless Steel Pipes are offered at the most competitive prices, providing unbeatable value for superior quality.
  Quality Products: We are unwavering in our commitment to quality, ensuring that every SS 321/321H Pipe and Tube meets the highest standards of excellence.
  Full Certifications: Our products are backed by comprehensive certifications, including Mill TC, Test Reports, and Hydrostatic Tests from NABL-approved labs, guaranteeing peace of mind.
• Fittings and Flanges: As a premier manufacturer, we supply a complete range of 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, simplifying procurement by offering a one-stop solution.

Features it possesses

• Crafted from pure stainless steel alloy, SS321/SS321H stainless steel welded pipes boast a range of remarkable properties. These include exceptional durability, flexibility, strength, long service life, high tensile strength, precise dimensions, and a smooth surface finish. Moreover, they offer enhanced resistance to pitting, general corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Testing

• We conduct a variety of rigorous tests, including positive material identification, intergranular corrosion, pitting resistance, mechanical, chemical, macro/micro, and flattening/flaring tests, ensuring the utmost reliability.

Documents provided-

• We supply essential documents such as the 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, ensuring full transparency and traceability.