321 Stainless Steel Pipe High Corrosion Resistance Aerospace Grade Od 6.35mm-508mm

• 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

Your Premier ASTM A312 / A358 Stainless Steel 321 Pipe Supplier | Offering 321 / 321H Stainless Steel Seamless Pipes. Connect with us for ASME SA312 321 Stainless Steel Pipe inquiries today!

Type 321 stainless steel, an austenitic alloy, mirrors the exceptional qualities of Type 304 but surpasses it with increased titanium and carbon content. This advantage provides metal fabricators with ultimate corrosion and oxidation resistance, alongside superior toughness even in cryogenic conditions. How does titanium enhance 321 stainless steel? It prevents detrimental carbide precipitation in the weld's heat affected zone (HAZ), offers partial defense against intergranular corrosion, and reduces embrittlement in high-stress weld areas. The 321H variant is ideal for components subjected to carbide precipitation temperatures (800°F-1500°F) in corrosive environments. While sharing similarities with 304 stainless steel, 321 contains more nickel and is stabilized with titanium, which prefers carbon interaction, preventing chromium carbide formation at grain boundaries. This preservation of chromium maintains corrosion resistance, even under critical temperatures. Known for hardening well with cold working, 321 stainless steel is effortlessly weldable, often eliminating the need for post-weld annealing, ensuring its remarkable performance in various corrosive settings.

Finest Stainless Steel Welded Tubes

Daxun's stainless steel tubular products are expertly crafted from stainless steel strips, roll-formed, and fusion-welded along the longitudinal seam. Our superior welding process uses no filler metal, ensuring unparalleled quality and durability.

Swift and Efficient Response

• Exceptional Formability and Weldability
• Operational Excellence at Temperatures up to 900°C
• Superior Resistance to Acids, Alkalis, and Low Temperatures
• Outstanding Cold Work Hardening Response
• Remarkable Welding Characteristics
• Unmatched Corrosion Resistance
• High Creep and Stress Rupture Properties | Grade: AISI 321/321H-S32100

 

Precision Stainless Steel Drawn Tube

Our stainless steel tubular products are meticulously rolled and re-drawn to final sizes. This method is perfect for thick-walled, large-diameter tubes that can't be directly rolled to size, offering cost-effective alternatives to seamless tubes. Every drawn tube undergoes bright annealing for superior quality.

Why Choose Daxun? Our Unrivaled Advantages

• Diverse Options: From small to large diameter, our extensive range of stainless steel pipes includes grades such as 304L, 316L, 317L, 321, 310, 347, 2205, and more.
• Tailored Flexibility: Whether it's seamless or welded, our stainless steel pipe lengths adapt to meet your specific project needs.
  Uncompromised Quality
• Adherence to Standards: Our stainless steel pipes align with rigorous standards like ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unmatched reliability and performance.
• Bespoke Orders: In need of specially sized stainless steel pipes? We provide a plethora of custom options at competitive prices with the convenience of online ordering.

 

Premium Stainless Steel Seamless Tube

Our stainless steel tubular products originate from the tube's hollow section, crafted through piercing or hot extrusion processes. The seamless tubes are ideal for extensive diameter-to-wall thickness ratios, boasting exceptional external dimensional tolerances.

Excellence in Quality, Delivery, and Inspection

• Daxun conducts rigorous quality assurance tests, including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous evaluations guarantee that our materials are perfectly suited for your specific applications.
• Throughout production, we meticulously measure the diameter, thickness, and surface quality of each product. Our standard delivery timeframe is 7-15 days. For certain special-sized products, this period extends to 20 days, ensuring each piece meets our high standards.
  Our delivery timelines are meticulously adhered to, strictly following the contractual agreement.
• We offer full support for client third-party agencies to conduct factory inspections, ensuring transparency and quality assurance.
• We provide complimentary samples to customers for rigorous testing, reaffirming our confidence in product quality.
• We facilitate comprehensive inspections, whether on-site or via video, to showcase our manufacturing excellence.

 

 

Unveiling Daxun's unparalleled stainless steel pipe manufacturing prowess.

Our forming capabilities encompass cutting-edge extrusion and cold working assets, one of the globe's largest pilger mills, and innovative hydroforming processes for crafting exceptional tube and pipe products.

 

Introducing Daxun's advanced pipe processing expertise.

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

 

Delivering bigger, better pipe solutions for diverse industrial needs.

Daxun boasts the most extensive pipe extrusion capabilities globally, with vertical and horizontal presses ranging from 12,000 to 35,000 tons. This allows us to produce the longest lengths and largest diameter pipes in the industry.

 

Daxun caters to the power generation sector, supplying ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and other essential products for nuclear, coal-fired, renewable energy, and combined cycle applications.

Packaging & Shipping

Company Profile

 

Chemical composition of 321 stainless steel pipe: The 321 stainless steel pipe boasts a superior chemical composition that brings together elements like chromium, nickel, and titanium, imparting exceptional durability and resistance to corrosion.

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: This premium stainless steel pipe demonstrates outstanding mechanical properties, including impressive tensile strength, remarkable yield strength, and notable elongation, making it an ideal choice for demanding aerospace applications.

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 pipes are designed to meet and exceed all equivalent standards, ensuring unparalleled performance, reliability, and compatibility across various industrial sectors.

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 renowned for its exceptional corrosion resistance. With high resistance to intergranular corrosion even after exposure to the chromium carbide precipitation range of 800 - 1500°F (427 - 816°C), this alloy can withstand oxidation up to 1500°F (816°C) and boasts superior creep and stress rupture properties compared to 304 and 304L steel. It also offers impressive low-temperature toughness.
• Stainless Steel Tube 321H (UNS S 32109) is a higher carbon content variant of 321, boasting a carbon range of 0.04 - 0.10. Designed for enhanced creep resistance and strength at temperatures exceeding 1000°F (537°C), its carbon content often permits dual certification.
• Alloy 321 enhances its toughness through cold working, not heat treatment. It is easily weldable and processable using common 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 800 - 1500°F (427 - 816°C).
• Suitable for most diluted organic acids at moderate temperatures.
• Effective in pure phosphoric acid at lower temperatures.
• Efficient 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 at low concentrations, or in sulfuric acid service.

PROCESSING

Alloy 321/H is easily weldable and processable by standard shop fabrication methods.

HOT FORMING

• Recommended working temperatures are 2100 - 2300°F (1149 - 1260°C) for forging, upsetting, and other hot working processes.
• Alloy is unsuitable for work 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 readily forms.

WELDING

• Easily welded using most standard processes.
• Post-weld heat treatment is unnecessary.

MACHINING

• 321's hardening rate reduces machinability compared to 410 stainless steel but is similar to 304.

Why Choose Our 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, and WNR 1.4878 Stainless Steel Pipes and Tubes? Discover the Daxun Difference.

• Short Lead Time - We pride ourselves on our exceptional speed in delivering top-tier 321/321H Stainless Steel Pipes and Tubes services to our esteemed clients.
• Customized Sizes: We specialize in processing Stainless Steel 321/321H Tubes, enabling us to produce and deliver both standard and non-standard stainless steel pipes tailored to our clients' specific needs.
• Best Prices: Our 321/321H Stainless Steel Pipes are offered at highly competitive prices, ensuring you receive the best value for your investment.
  Quality Products: We are unwavering in our commitment to ensuring the highest quality for our SS 321/321H Pipes and Tubes, no matter the cost.
  Full Certifications: Our products are accompanied by comprehensive certifications, including Mill TC, Test Reports, and Hydrostatic Tests from NABL approved labs, assuring their authenticity and quality.
• Fittings and Flanges: As a leading manufacturer, we provide an array of fittings and flanges including 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, offering our clients the convenience of sourcing all their requirements from a single vendor.

Features it possesses

• Since SS321/SS321H stainless steel welded pipes are crafted from pure stainless steel alloy, they boast numerous outstanding properties such as exceptional durability, flexibility, toughness, high tensile strength, long-lasting service life, precise dimensional accuracy, and a superior surface finish. Additionally, they exhibit enhanced resistance to pitting, corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Testing

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

Documents provided-

• We provide a comprehensive set of documents, including the Heat Treatment Chart, Quality Assurance Plan, Commercial Invoice, Certificate of Origin, Raw Material Test Report, and Material Traceability Report. Additionally, essential documents such as MTC as per EN 10204/3.1B, TC including Radiography Test Report, and Third Party Test Reports are also supplied.