321 Stainless Steel Tube ASTM A269 High Temperature Resistance Od 33.7mm-457mm Brushed for Boiler Pipes 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; Discover our range of 321 / 321H Stainless Steel Seamless Pipes. Contact us today for ASME SA312 321 Stainless Steel Pipes that excel in durability and performance.

Type 321 stainless steel is a premium austenitic steel, sharing many properties with Type 304 but with enhanced titanium and carbon content. This superior material offers exceptional corrosion and oxidation resistance, along with remarkable toughness, even in cryogenic conditions. Titanium in 321 stainless steel 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 areas of the weld. Type 321H is ideal for applications where parts are heated to carbide precipitation temperatures (800°F-1500°F) and exposed to corrosive atmospheres. Comparable to 304 stainless steel but with more nickel and titanium stabilization, 321 stainless steel ensures maintained corrosion resistance by preventing chromium carbide formation at grain boundaries. This grade responds excellently to cold working, is easily weldable, and rarely requires post-weld annealing, making it perfect for a variety of corrosive environments.

Stainless Steel Welded Tubes

Our stainless steel tubular products are crafted from high-grade stainless steel strip, roll-formed, and fusion-welded along the longitudinal seam. Daxun's state-of-the-art welding process ensures precision and quality, without the use of any filler metal.

Quick response

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

 

Stainless Steel Drawn Tube

Our stainless steel tubular products are meticulously rolled and re-drawn to achieve the final size. This process is perfect for producing thick-walled, large-diameter tubes that cannot be rolled directly to size, offering significant cost savings over seamless tubes. All drawn tubes undergo bright annealing for enhanced quality.

Daxun Advantages

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

 

Stainless Steel Seamless Tube

Our stainless steel tubular products are expertly drawn from the hollow section of the tube, created via piercing or hot extrusion processes. Ideal for large diameter-to-wall thickness ratios, our seamless tubes boast excellent external dimensional tolerances for consistent quality.

Quality, delivery, inspection

• At Daxun, we perform exhaustive quality assurance tests, including flattening, pitting, resistance, mechanical, hardness, material positive identification, and expansion tests. These thorough evaluations ensure that our materials are perfectly suited for your specific applications.
• Throughout our meticulous production process, we rigorously measure the diameter, thickness, and surface quality of each product. While our standard delivery time is exceptionally swift, ranging from 7-15 days, certain special-sized products may extend the delivery period to 20 days to ensure unparalleled quality.
  Our commitment to punctuality means our delivery times adhere strictly to contractual agreements, ensuring reliability and trust.
• We fully support third-party agencies conducting on-site inspections at our factory, providing transparency and quality assurance to our customers.
• We offer complimentary samples to our customers for rigorous testing, showcasing our confidence in the superior quality of our products.
• We facilitate comprehensive factory inspections, whether on-site or via video, to provide complete visibility into our manufacturing processes.

 

 

Discover Daxun's Superior Stainless Steel Pipe Manufacturing Capabilities

Our state-of-the-art forming capabilities include advanced extrusion and cold working techniques for producing impeccable tube and pipe products. We boast one of the world's largest pilger mills and utilize unique hydroforming processes to create precision fittings.

 

Explore Daxun's Comprehensive Pipe Processing Abilities

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

 

Bigger, Better Pipe Solutions for Your Needs

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

 

Daxun serves the power generation market with a wide array of products, including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and more. Our solutions cater to nuclear, coal-fired, renewable energy, and combined cycle applications.

Packaging & Shipping

Company Profile

 

Chemical Composition of 321 Stainless Steel Pipe: Our 321 Stainless Steel Welded Pipe, conforming to ASTM A312 standards, is meticulously crafted with a unique blend of chromium, nickel, and titanium. This specific composition ensures superior resistance against corrosion, making it ideal for demanding aerospace 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: Engineered for excellence, our 321 Stainless Steel Pipe exhibits outstanding mechanical properties. This includes impressive tensile strength, high yield strength, and remarkable durability, ensuring reliable performance in the most challenging environments.

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 Welded Pipe meets and exceeds industry standards, offering equivalent quality and performance to other leading brands. Trust in our expertise and rigorous manufacturing processes to deliver exceptional and consistent results.

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) is a titanium-stabilized austenitic stainless steel known for its exceptional overall corrosion resistance. This alloy demonstrates high resistance to intergranular corrosion after being exposed within the chromium carbide precipitation temperature range of 800 - 1500°F (427 - 816°C). It resists oxidation up to 1500°F (816°C) and offers superior creep and stress rupture properties compared to 304 and 304L stainless steel pipes. Additionally, it maintains good low-temperature toughness.
• 321H Stainless Steel Tube (UNS S 32109) features a higher carbon content (0.04 - 0.10), which is specifically designed to enhance creep resistance and strength at temperatures exceeding 1000°F (537°C). Typically, the carbon content allows for dual certification of the plate.
• Alloy 321 can only be toughened through cold working and not by heat treatment. It is easily welded and processed using conventional 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 within the chromium carbide precipitation range of 1800 - 1500°F (427 - 816°C).
• Suitable for use in most diluted organic acids at moderate temperatures.
• Applicable in pure phosphoric acid at lower temperatures.
• Usable in up to 10% diluted solutions at elevated temperatures.
• Resists 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

• Recommended working temperatures for forging, upsetting, and hot working processes are between 2100 - 2300°F (1149 - 1260°C).
• The alloy is not suitable 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

• 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 it is 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 - We pride ourselves on offering the fastest turnaround times in the industry for high-quality 321/321H Stainless Steel Pipes and Tubes, ensuring prompt and reliable service for our valued clients.
• Customized Sizes: Our expertise allows us to process Stainless Steel 321/321H Tubes to meet both standard and non-standard requirements, delivering bespoke stainless steel pipes tailored to your specific needs.
• Best Prices: We offer highly competitive pricing on our 321/321H Stainless Steel Pipes, ensuring exceptional value without compromising on quality.
  Quality Products: We are unwavering in our commitment to quality, guaranteeing the superior performance of our SS 321/321H Pipes and Tubes.
  Full Certifications: Each product is accompanied by comprehensive certification, including Mill TC, Test Reports, and Hydrostatic Tests from NABL approved laboratories, ensuring full compliance and traceability.
• Fittings and Flanges: As a manufacturer of 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, we provide a one-stop solution for all your pipeline needs, offering unmatched convenience and consistency.

Features it possesses

• Crafted from pure stainless steel alloy, SS321/SS321H stainless steel welded pipes offer an array of exceptional properties including outstanding durability, flexibility, toughness, and longevity. These pipes boast high tensile strength, precise dimensional accuracy, and a flawless surface finish. Additionally, they exhibit superior resistance to pitting, corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Testing

• Rigorous testing ensures the highest quality standards; our tests include positive material identification, intergranular corrosion, pitting resistance, mechanical and chemical analysis, macro/micro examination, and flattening/flaring assessment.

Documents provided-

• We provide a range of essential documents, including the heat treatment chart, quality assurance plan, commercial invoice, certificate of origin, raw material test report, and material traceability report. Additionally, we offer MTC as per EN 10204/3.1B, along with TC such as radiography test reports and third-party test reports, ensuring thorough documentation and compliance.