Stainless Steel 321/321H Pipe Manufacturer in India
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Table of Content
- Standard Specification
- Chemical Composition
- Mechanical Properties
- Stainless Steel 321 / 321H Pipes Standard Specifications
- Equivalent Grades for 304 Stainless Steel Pipe
- ASTM A312 / A358 Stainless Steel 321 / 321H Pipes Forms & Availability
- Outside Diameter, OD (in mm) & Wall Thickness, WT (in mm) of Stainless Steel 321 / 321H Pipes
Manufacturer & Supplier of Stainless Steel 321/321H Pipe
These SS 321 / 321H Pipes are manufactured, supplied, and exported by Mahavir Metals India, one of the leading manufacturers, suppliers, and exporters in India. We are a certified corporation that has received accreditation from a variety of organizations all over the world. Our Stainless Steel 321 / 321H Pipes come in a variety of shapes and diameters. Also, depending on the shape, size, length, and other specifications specified by the customer. We also adhere to all quality requirements when producing these Pipes.
These SS 321 / 321H Pipes are made of austenitic-ferritic stainless steel and are mostly utilized in harsh conditions. Localized corrosion, such as pitting, crevice corrosion, and stress corrosion cracking, can be avoided. The chemical composition of austenitic-ferritic alloys results in mechanical qualities that can withstand high-stress scenarios. These pipes are made entirely of pure alloys. Titanium, Carbon, and Nickel are employed in the production of these stainless steel pipes. It has high corrosion resistance qualities in most settings because of the inclusion of these components. It also has excellent pitting and crevice corrosion resistance, even in oxidizing and acidic conditions. Mahavir Metals India manufactures these SS 321 / 321H Pipes using superior quality raw materials that are carefully analyzed and selected using cutting-edge technology in order to give the highest quality Stainless Steel Pipes to our valued customers. We have a group of experts on our side. Our team members are highly qualified and have extensive industry expertise.
Mahavir Metals India manufactures the best SS 321 / 321H Pipes that would provide exceptional solutions for both industrial and commercial applications. To preserve the quality and quantity of these pipes, we always resort to international and national quality standards and set manufacturing methods. On the final Pipes, we additionally run several destructive and non-destructive testing. We manufacture these outstanding SS 321 / 321H Pipes in bulk using the most up-to-date technologies and procedures, which will aid in any emergency or urgent delivery conditions. Following that, we pack these Pipes using the correct packaging materials. And ensuring that our buyers receive a smooth, convenient, on-time, and damage-free delivery. We are always accessible to provide our customers with the highest quality and featured Pipes for a variety of applications.
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Stainless Steel 321 / 321H Pipes Specification
| 321 / 321H Pipes Specifications | ASTM A312, A358 / ASME SA312, SA358 |
| Dimensional specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| ASTM A312 TP 321 / 321H Seamless Pipe Size | 1 / 2″ NB – 16″ NB |
| ASTM A312 TP 321 / 321H Welded Pipe Size | 1 / 2″ NB – 24″ NB |
| ASTM A358 TP 321 / 321H EFW Pipe Size | 6″ NB – 24″ NB |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| SS 321 / 321H Pipes Manufacturing Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
| SS 321 / 321H Pipe Manufacturing Techniques | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Stainless Steel 321 / 321H Pipe Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| SS 321 / 321H Pipes End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Delivery Condition of SS 321 / 321H Pipe | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
| Marking | Specification Grade Nominal Pipe Sizes Pipe Schedule or Wall Thickness Manufacturing Method (Seamless / Welded) Heat Number Manufacturer’s Name or Custom Logo – on request Marked Pipe Sample: ANSI B36.19 ASTM A 312 TP 321 12″ NB SCH 40S SEAMLESS HEAT NO. XXXX |
| 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 |
| Packing of SS 321 / 321H Pipes | Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
| Specials | Sizes and Specifications other than above can be on request |
Chemical Composition of Stainless Steel 321 / 321H Seamless, Welded Pipes
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 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 |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Mechanical Properties of Stainless Steel A312 / A358 TP 321 / 321H Piping
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 321 / SS 321H | 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Stainless Steel 321 / 321H Pipes Standard Specifications
| Sainless Steel 321 / 321H Pipe Specifications | |
| ASTM A312 TP321 / 321H | Seamless and straight-seam welded austenitic pipe intended for high temperature and general corrosive service. Filler metal not permitted during welding. |
| ASTM A358 TP321 / 321H | Electric fusion welded austenitic pipe for corrosive and/or high temperature service. Typically only pipe up to 8 inch is produced to this specification. Addition of filler metal is permitted during welding. |
| ASTM A790 TP321 / 321H | Seamless and straight-seam welded ferritic/austenitic (duplex) pipe intended for general corrosive service, with a particular emphasis on resistance to stress corrosion cracking. |
| ASTM A409 TP321 / 321H | Straight-seam or spiral-seam electric fusion welded large diameter austenitic light-wall pipe in sizes 14” to 30” with walls Sch5S and Sch 10S for corrosive and/or high |
| ASTM A376 TP321 / 321H | Seamless austenitic pipe for high temperature applications. |
| ASTM A813 TP321 / 321H | Single-seam, single- or double- welded austenitic pipe for high temperature and general corrosive applications. |
| ASTM A814 TP321 / 321H | Cold-worked welded austenitic pipe for high temperature and general corrosive service. |
| EN 10216 / EN 10216-5 | Stainless Steel 321 / 321H Seamless Steel Pipes for pressure purposes |
| EN 10217 / EN 10217-7 | 321 / 321H Stainless Steel Welded Pipes for pressure purposes |
Equivalent Grades Stainless Steel 321 / 321H Pipes
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
ASTM A312 / A358 Stainless Steel 321 / 321H Pipes Forms & Availability
| Products | Size | |
| ASTM A312 TP321 / 321H SS Square Pipe | ASTM A312 321 / 321H SS Dairy Pipe | Sizes 1/8″NB TO 30″NB IN |
| ASTM A312 TP321 / 321H SS Exhaust Pipe | ASTM A312 TP321 / 321H Stainless Steel Flexible Pipe | |
| ASTM A312 TP321 / 321H Stainless Hollow Pipe | ASTM A312 TP321 / 321H SS Rectangular Pipe | |
| ASTM A312 TP321 / 321H SS Round Pipe | ASTM A312 TP321 / 321H SS Schedule 40 Pipe | |
| ASTM A312 TP321 / 321H Stainless Sch 10 Pipe | ASTM A312 TP321 / 321H Stainless Schedule 5 Pipe | |
| ASTM A312 TP321 / 321H SS Schedule 80 Pipe | ASTM A312 TP321 / 321H Stainless Threaded Pipe | |
| ASTM A312 TP321 / 321H Stainless Seamless Pipe | ASTM A358 TP321 / 321H Stainless EFW Pipes | |
| ASTM A312 TP321 / 321H SS EP Pipes | ASTM A312 TP321 / 321H SS Electric Resistance Welded Pipe | |
| ASTM A358 TP321 / 321H SS Electric Fusion Welded Pipes | ASTM A312 TP321 / 321H SS Structural Steel Pipe | |
Outside Diameter, OD (in mm) & Wall Thickness, WT (in mm) of Stainless Steel 321 / 321H Pipes
| Product Description | Outside Diamter, OD (in mm) | Wall Thickness, WT (in mm)> |
| 321 / 321H Stainless Steel Round Pipe | 6mm – 630mm | 0.5mm-30mm |
| 321 / 321H Stainless Steel Square Pipe | 12.7mm* 12.7mm to 300mm* 300mm | 0.5mm-30mm |
| 321 / 321H Stainless Steel Rectangular Pipe | 10*20mm to 100*200mm | 0.5mm-30mm |
| 321 / 321H Stainless Steel Colour Coated Pipe | 6mm to 630mm | 0.5mm-30mm |
| 321 / 321H Stainless Steel Ornamental Pipes | 12.7mm to 76.2mm | 0.5mm-2.0mm |
| 321 / 321H Stainless Steel Electropolished Pipes | 12.7mm to 250mm | 0.5mm-30mm |
| 321 / 321H Stainless Steel Slot Round Pipe | 12.7mm to 76.2mm | 0.5mm-2.0mm |
| 321 / 321H Stainless Steel Triangle Pipe | 16mm to 85mm | 0.5mm-3.0mm |
| 321 / 321H Stainless Steel Hexagonal Pipes | 13mm to 85mm | 0.5mm-2.0mm |
| 321 / 321H Thin-Wall Stainless Steel Pipes | 22mm*0.7mm to 108mm*2.0mm | 0.5mm-2.0mm |
| 321 / 321H Inner/Outside Polished Stainless Steel Pipes | 12.5mm to 203.2mm | 1.0mm – 5mm |
| 321 / 321H Stainless Steel Seamless Pipes | 6mm to 430mm | 0.8mm – 30mm |
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