321 Stainless Steel Tube AMS 5566 High Temperature Resistant Od 6.35mm-711mm 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; 321 / 321H Stainless Steel Seamless Pipe. Contact us today for your ASME SA312 321 Stainless Steel Pipe needs.

Type 321 stainless steel stands out as an austenitic steel, sharing many characteristics with Type 304 but enhanced with higher titanium and carbon content. This unique composition grants metal fabricators outstanding corrosion and oxidation resistance, as well as exceptional toughness, even at cryogenic temperatures. Titanium in 321 stainless steel offers several advantages: it prevents harmful carbide precipitation in the heat affected zone (HAZ) of the weld, provides partial protection against intergranular corrosion, and reduces embrittlement in high-risk weld zones. 321H stainless steel is particularly suitable for applications involving parts heated to carbide precipitation temperatures (800°F-1500°F) and exposed to corrosive atmospheres. By including more nickel and being stabilized with titanium, 321 stainless steel prevents the formation of chromium carbides at grain boundaries, thus maintaining its corrosion resistance during exposure to critical temperatures. This grade excels in cold working, is easily weldable, and rarely requires post-weld annealing, ensuring exceptional performance in various corrosive environments.

Stainless Steel Welded Tubes

Our stainless steel tubular products are meticulously crafted from stainless steel strips, roll-formed, and fusion-welded along the longitudinal seam. Daxun's expertise ensures a high-quality welding process without the need for any filler metal.

Quick Response

• Good Formability and Weldability
• Operates Efficiently at Temperatures Up to 900°C
• Resistant 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 first rolled and then re-drawn to the final size. This process, ideal for thick-walled, large-diameter tubes, provides cost savings over seamless tubes while maintaining high quality. All drawn tubes undergo bright annealing for superior finish.

Daxun Advantages

• Variety: Offering an extensive 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 you need seamless or welded steel pipes, our diverse range of stainless steel pipe lengths is tailored to meet your specific project requirements.
  Quality
• Standards: Our stainless steel pipes adhere to stringent standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring reliability and high performance.
• Custom Orders: Need special-size stainless steel pipes? We provide a variety of custom options at competitive prices, with the convenience of online ordering.

 

Stainless Steel Seamless Tube

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

Quality, Delivery, Inspection

• Daxun conducts rigorous quality assurance tests including flattening, pitting and resistance tests, mechanical, hardness, material positive identification, and expansion tests. These comprehensive tests ensure that our materials meet and exceed application requirements.
• During the meticulous production process, we ensure precision by measuring the diameter, thickness, and surface quality of each product. Our standard delivery time ranges from 7 to 15 days. However, for products with special dimensions, the delivery time may extend up to 20 days.
  Our delivery schedule is rigorously adhered to in strict accordance with the contract terms.
• We welcome third-party customer agencies to visit our factory for comprehensive inspections.
• We offer free samples to customers to facilitate thorough testing and evaluation.
• We support both on-site and video factory inspections to ensure transparency and build trust.

 

 

Daxun's Stainless Steel Pipe Manufacturing Capabilities

Our forming capabilities boast cutting-edge extrusion and cold working assets for manufacturing tube and pipe products. We also operate one of the world's largest pilger mills and employ unique hydroforming processes to produce superior fittings.

 

Daxun's Pipe Processing Capabilities

As a vertically integrated manufacturer, we provide a comprehensive one-stop solution. Our capabilities include handling entire projects or specific machining tasks such as straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and offering specialized services.

 

Bigger, Better Pipe Solutions

With vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the most comprehensive pipe extrusion capabilities globally. This enables us to manufacture the industry's longest lengths and largest diameter pipes.

 

Daxun is a trusted supplier for the power generation market, offering ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and other products for nuclear, coal-fired, renewable energy, and combined cycle applications.

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	-

 

321 Stainless Steel Pipe All Equivalent Materials

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

• The 321 Stainless Steel Pipe (UNS S32100) is a premium titanium-stabilized austenitic stainless steel, boasting exceptional overall corrosion resistance. It withstands intergranular corrosion following exposure to the critical chromium carbide precipitation temperature range of 800 - 1500°F (427 - 816°C). This alloy resists oxidation up to 1500°F (816°C), surpassing 304 and 304L steel pipes with superior creep and stress rupture properties. Additionally, it offers excellent low-temperature toughness.
• Stainless Steel Tube 321H (UNS S32109) features a higher carbon content (0.04 - 0.10), enhancing its creep resistance and strength at temperatures exceeding 1000°F (537°C). This elevated carbon content often allows for dual certification of the plate.
• Alloy 321 can be toughened exclusively through cold working, making it easily weldable and processable with 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.
• Optimized for use within the chromium carbide precipitation range of 1800 - 1500°F (427 - 816°C).
• Ideal for use in most diluted organic acids at moderate temperatures.
• Suitable for use in pure phosphoric acid at lower temperatures.
• Effective in up to 10% diluted solutions at elevated temperatures.
• Resistant to polythionic acid stress corrosion cracking in hydrocarbon service.
• Applicable in chloride or fluoride-free caustic solutions at moderate temperatures.
• Not recommended for chloride solutions, even in minimal concentrations, or sulfuric acid service.

Processing

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

Hot Forming

• Recommended working temperatures for forging, upsetting, and other hot processes are between 2100 - 2300°F (1149 - 1260°C).
• 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 weldable by most standard processes.
• Post-weld heat treatment is unnecessary.

Machining

• The hardening rate of 321 makes it less machinable than 410 stainless steel, yet 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 by Daxun?

• Short Lead Time - Experience unparalleled efficiency with our rapid delivery of premium 321/321H Stainless Steel Pipes and Tubes, ensuring you get the highest quality in record time.
• Customized Sizes: Tailored to perfection, we can fabricate Stainless Steel 321/321H Tubes in both standard and bespoke dimensions, meeting your precise specifications.
• Best Prices: Enjoy the best of both worlds with our 321/321H Stainless Steel Pipes, offering exceptional quality at the most competitive prices in the market.
  Quality Products: Our commitment to excellence guarantees that every SS 321/321H Pipe and Tube meets the highest standards of quality, no matter the cost.
  Full Certifications: Each product is accompanied by comprehensive certification, including Mill TC, Test Reports, and Hydrostatic Tests from NABL-approved laboratories.
• Fittings and Flanges: As a leading manufacturer, we provide an extensive range of 321 Forged Fittings, 321 Butt Weld Fittings, 321 Compression Ferrule Fittings, and 321/321H Flanges, offering you a one-stop solution for all your needs.

Features it possesses

• Crafted from pure stainless steel alloy, SS321/SS321H welded pipes boast a myriad of exceptional attributes including superior durability, flexibility, toughness, longevity, high tensile strength, precise dimensional accuracy, and a pristine surface finish. These pipes also exhibit outstanding resistance to pitting, general corrosion, oxidation, stress corrosion cracking, and crevice corrosion.

Testing

• Our rigorous testing protocol includes Positive Material Identification Test, Intergranular Corrosion Test, Pitting Resistance Test, Mechanical Test, Chemical Test, Macro/Micro Analysis, as well as Flattening/Flaring Tests, ensuring top-notch product reliability.

Documents provided-

• We supply essential documents such as the Heart Treatment Chart, Quality Assurance Plan, Commercial Invoice, Certificate of Origin, Raw Material Test Report, and Material Traceability Report. Additional documentation includes MTC as per EN 10204/3.1B, TC like Radiography Test Report, and Third Party Test Report, ensuring comprehensive compliance and traceability.