Stainless Steel 321H Pipes are a premium high-temperature austenitic alloy that is widely recognized for its exceptional strength, resistance to oxidation, and ability to function in environments where heat and stress are common. These pipes are an enhanced version of stainless steel 321, with a higher carbon content that improves high-temperature performance.
At Nascent Pipe & Tubes, we specialize in the manufacturing and export of top-quality Stainless Steel 321H Pipes, conforming to international standards and specifications such as ASTM A312, ASTM A358, and ASTM A213, and are identified by the UNS S32109 designation.
Stainless Steel 321H Pipes Manufacturers, Stainless Steel 321H Pipes Suppliers, Stainless Steel 321H Pipes Stockists, Stainless Steel 321H Pipes Exporters
Stainless Steel 321H Pipes Manufacturers in India, Stainless Steel 321H Pipes Suppliers in India, Stainless Steel 321H Pipes Stockists in India, Stainless Steel 321H Pipes Exporters in India
Stainless Steel 321H is a high-temperature alloy that does well in elevated temperature environments. The "H" in 321H designates a higher carbon content than regular 321 stainless steel, which provides added strength and stability at higher temperatures. This makes stainless steel 321H pipes adequate for aerospace and chemical applications where petrochemical resistance to oxidation and corrosion becomes very vital.
Stainless Steel 321H Pipes Manufacturers In Mumbai, Stainless Steel 321H Pipes Suppliers In Mumbai, Stainless Steel 321H Pipes Stockists In Mumbai, Stainless Steel 321H Pipes Exporters In Mumbai
Being one of the prime suppliers of Stainless Steel 321H pipes, Nascent Pipe & Tubes takes all measures to ensure quality. The pipes are produced using modern techniques using superior raw materials so that they meet rigid industry specifications. This assurance shows in the consistent performance and reliability of our products, which have made them the favourite of engineers and contractors worldwide.
Specification of Stainless Steel 321H Seamless Pipes
Stainless Steel Pipe Specification : ASTM A312, A358 / ASME SA312, SA358
SS Tube Specification : ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Pipe Size :1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube Size :1/2" OD to 8" OD.
Thickness Range :0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type :Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length :Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
End Protection : Plastic Caps
Outside Finish :2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports :Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing :Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials :Sizes and Specifications other than above can be manufactured on request
Chemical Composition of Stainless Steel 321H Seamless Pipes
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 321H | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
Mechanical Properties Of Stainless Steel 321H Seamless Pipes
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 321H | 75 | 30 | 40 | 201 | 92 |
Physical Properties of Stainless Steel 321H Seamless Pipes
| SS 316 | ||||||
|---|---|---|---|---|---|---|
| Density lbm/in3 | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10-6) | Modulus of Elasticity (psi x 106 | Coefficient of Thermal Expansion (in/in)/ °F x 10-6 | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
| at 68°F: 0.285 | 9.4 at 212°F | 28.3 at 68°F | 28 | 9.4 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500 to 2590 |
Equivalent Grades Stainless Steel 321H Seamless Pipes
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 321H | 1.4438 | S31703 | SUS 321H | X2CrNiMo18-15-4 |
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