Stainless Steel 321H Pipes offered by A M Industries epitomize the perfect blend of excellent performance and reliability for several industrial applications. Due to their great strength and heat-resistant characteristics, these pipes and tubes are in great demand in challenging environments. From seamless to welded, A M Industries is one of the leading names considered by every buyer while looking for quality products among most Stainless Steel 321H Pipes Manufacturers, which assure international standards.

Close-up of Stainless Steel 321H Pipes showing smooth, seamless structure.

The alloy Stainless Steel 321H is titanium-stabilized; thus, it is very suitable for operations at high temperatures. This grade is particularly excellent in those conditions where carbide precipitation may be encountered and might adversely affect the corrosion-resistance characteristics of the material. Its ability to withstand temperatures ranging from 800 to 1500 degrees F makes it highly versatile.

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Being a high-carbon version, Stainless Steel 321H attains greater resistance to creep and strength and hence find their application in conditions encountered in the industrial environment at higher temperatures. Normally, tubes and pipes made of such alloy contain 0.04 to 0.10% carbon content with the addition of other mentioned elements to give the element strength and make it highly durable. These features have easily positioned A M Industries to be one of the largest worldwide Stainless Steel 321H Pipes Suppliers.

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Another unique factor about Stainless Steel 321H tubes is their dimensions. The outer diameter of the tubes ranges from 6mm to 250mm, while the thickness ranges from 0.3mm to 50mm. Such a wide range of sizes enables the industries to choose the exact dimensions for specific applications. They find application in petroleum refineries, boiler tubing, high-pressure steam lines, heavy-duty exhaust systems, and manifolds. A M Industries is one of the leading stockists that has been consistently availing a widely appreciated inventory of Stainless Steel 321H Pipes, which are demanded by various customers.

stainless steel 321H pipes are seamless and welded. Seamless pipes manufactured from a single piece of steel have higher tensile strength and yield strength than 515MPa and 205MPa, respectively.On the other hand, the welded ones are cost-effective and resistant to corrosion. The improved techniques of fusion welding in making UNS S32109 ERW pipes enhance the strength and capabilities of elongation, which ensure a very long service life. As a result of this, such welded pipes are in demand from industries all over the world, and hence, A M Industries becomes a name among the exporters of Stainless Steel 321H Pipes.

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The AISI 321H Schedule 40 Pipe is specially liked for its workability concerning weldability by standard techniques, hence able to meet all sorts of project demands. Cold-rolled polished pipes in this grade show a smooth surface finish that adds corrosion resistance and imparts a fine polished appearance to make them suitable even for visible installations. These pipes and tubes are customized according to each client's specifications by A M Industries in the best manner to function suitably in all application fields.

Stainless Steel 321H Pipes Specifications

Trade Name

Stainless Steel 321H Pipe & Tube

Stainless Steel 321H Seamless Pipe (OD)

21.3 - 660mm ( Inch 1/2” – 26”)

ASTM A312 TP 321H SAW

16" - 100" NB

Stainless Steel 1.4878 ERW and HFW

1/2” NB – 24” NB

321H Stainless Steel LSAW / DSAW

16’OD TO 54" OD (8 MM TO 50 MM THK)

Additional Services and Facility

Beveling, Threading, Sawing, Polishing, Laser/ Water Jet Cutting, Tapping, Cutting

Material Test Certificate (MTC) provided by Stainless Steel 321H Pipe suppliers

EN 10204 3.1, IBR, Radiographic Testing (RT), ISO 9001:2005, Ultrasonic Testing (UT), PED, ISO 14001:2015, NDE, EIL

Equivalent Standards

CSA, AWWA, UNI, NFA, GOST, JIS, ISO, SAE, AISI, ASTM, EN, GB, KS, BS, SS, IS, API, DIN, ANSI

SS 321H Pipe end

BOE-Beveled One End, POE -Plain One End, BLE -Bevel large end, PBE -Plain Both Ends, BBE -Bevel both ends, BE -Beveled end, BSE -Bevel small end, TOE -Treaded One End, TBE -Treaded Both Ends

UNS S32109 Pipe Length

3000mm, 2000mm, SRL, 6000mm, Double Random Length (DRL), 20FT, Custom Length, Single Random Length (SRL), DRL, 40FT, 12000mm

321H Wall Thickness

SCH-STD, SCH160, SCH-10, SCH-10S, SCH-XXS, SCH-5, SCH-5S, SCH-80S, SCH-80, SCH-40S, SCH-40, SCH-XS

Marking of Stainless Steel 321H Pipe suppliers

Specification of Stainless Steel 321H Pipe
Material Grade
Nominal Pipe Sizes (NPS)
Wall Thickness or Schedule No.
Manufacturing Process (Seamless/ EFW/ ERW/ Welded)
Heat Number
Dealer/ Supplier or Manufacturer’s Name or Custom Logo - as required

Bright Annealed, NO.1, NO.4, 2B, Mirror, Polished, Cold Drawn, BA, Annealed & Pickled, HL, 8K, 4K, Polish

Different methods used by Stainless Steel 321H Pipe manufacturers

Electric Resistance Welded (ERW), Horizontal Submerged Arc Welded (HSAW), CDW, Longitudinally Submerged Arc Welded (LSAW), Extrusion, Electro Fusion Seam Welded (EFSW), 100% X Ray/ Gamma Ray Welded, Submerged Arc Welded (SAW), Cold Drawn Seamless (CDS), Fabricated, Seamless, Hot Finish Seamless (HFS), Welded

Origin of ASTM A312 TP 321H Pipe material

USA, Japanese, European, American, Indian, Korean, Ukraine, Latin-American, Africa, UK, Japan, Gulf, Russian, Asian, Chinese

Certificate

SSC, EN-10204:3.2, HIC, NACE, EN-10204:3.1, Sour-Service, IBR

Dual certified supplier

Dual certified SS 321H Pipe suppliers in India, accordance to certify ASTM A312 TP321H and ASME SA 312 TP321H American specifications

Test

Ultrasonic Test, Creep, Ultrasonic, SSC- Sulfide Stress Corrosion Cracking, Surface Roughness Test, Fine Grain, Ferrite, Macro, Charpy V Impact Test, Stress , Chemical, HIC- Hydrogen-induced Cracking, Tensile, TM0177, Burst Test, Flux Leakage examination or Magnetic Flaw detection, Hydro test, Mechanical, NACE MR0175, Radiography, Hardness, Impact, TM0284, Bend TestBend test / Guided Bend, Salt Spray Test to test Phosphating, IGC- Intergranular Corrosion Test, Eddy current, Metallurgical & Stereo Microscopy, Micro, Hardness Test, H2 SERVICE, Non Destructive Testing , Positive Material Identification (PMI), Straightness, Charpy V-Notch Test, IBR

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 321H	1.4878	S32109	SUS 321H	X12CrNiTi18-9

Grade	C	Mn	Si	P	S	Cr	N	Ni	Ti
SS 321H	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 19.00	0.10 max	9.00 - 12.00	5(C+N) – 0.70 max

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1457 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

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