With in-house quality testing and certification, you can count on quality materials delivered with proper documentation.
Stainless Steel 321/321h Boiler Tubes Manufacturer.
SEAMLESS: DIN 1.4541 Boiler Tubes | UNS S32100 Boiler Tubes | JIS SUS 321 Boiler Tubes | ASTM A213 TP321h Boiler Tubes | A269 TP321 Boiler Tubes | BS 321S31 Boiler Tubes | EN X6CrNiTi18-10 Boiler Tubes | DIN 1.4878 Boiler Tubes
SS S32100 Boiler Tubes, ASTM A213 TP321 SS Boiler Tubes, Stainless Steel 321h Seamless Boiler Tubes, Stainless Steel 1.4541 Boiler Tubes, ASME SA268 SS 321 Boiler Tubes, 321h SS Boiler Tubes Manufacturer in India, SS 321 Boiler Tubes Supplier in Qatar, Steel 321h Boiler Tubes Exporter in Australia, ASTM A269 TP321 Stainless Steel Boiler Tubes, Stainless Steel 321h Welded Boiler Tubes.
MPJ Tubing Solutions LLP stands at the forefront of the stainless steel industry as a trusted exporter of high-quality Stainless Steel 321/321H Boiler Tubes to customers in the United States and beyond. These boiler tubes are engineered to meet stringent industry standards, including ASTM A213, ASTM A269, and ASTM A268, ensuring their compatibility with a wide range of applications across various industries.
The Stainless Steel 321/321H Boiler Tubes offered by MPJ Tubing Solutions LLP are renowned for their exceptional performance and durability. With an extensive outer diameter range of 9.52 mm to 101.40 mm and wall thickness options spanning from 0.50 mm to 8.00 mm, these tubes provide versatility and adaptability for various industrial requirements. Additionally, they can be customized to lengths of up to 30 meters, ensuring they meet the specific needs of individual projects.
MPJ Tubing Solutions LLP has earned a stellar reputation as a leading manufacturer and exporter in the stainless steel industry. Their commitment to innovation, rigorous quality control, and unwavering dedication to customer satisfaction have solidified their position as a trusted supplier in the global market. Whether for domestic or international applications, MPJ Tubing Solutions LLP delivers precision-engineered solutions that consistently meet or exceed industry standards.
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Stainless Steel 321/321h Boiler Tubes Chemical Composition
| Grade | Range | Ni | Cr | P | Fe | C | Mn | N | Si | S | Ti |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 321 | Min. | 9.0 | 17.0 | 0 | 65.045 | – | – | – | – | – | – |
| Max. | 12.0 | 19.0 | 0.045 | – | 0.08 | 2.0 | 0.10 | 1.0 | 0.030 | 5(C+N) -0.70 | |
| 321H | Min. | 9.0 | 17.0 | – | 65.25 | 0.04 | – | – | – | – | – |
| Max. | 12.0 | 19.0 | 0.045 | 0.010 | 2.00 | 0.10 | 1.00 | 0.030 | 4(C+N) -0.70 |
SS 321/321h Boiler Tubes Mechanical Properties
| Grade | Tensile Strength min (MPa) | Yield Strength 0.2% Proof min (MPa) | Hardness | Elongation (% in 50mm) min | |
|---|---|---|---|---|---|
| Brinell max (HB) | Rockwell B max (HR B) | ||||
| 321/321h | 515 | 205 | 217 | 95 | 40% |
SS ASTM A213 TP321h Boiler Tubes Equivalent Grades
| Grade | UNS No | Old British | Euronorm | Japanese JIS | Swedish SS | GOST | ||
|---|---|---|---|---|---|---|---|---|
| BS | En | No | Name | |||||
| 321 | S32100 | 321S31 | X6CrNiTi18-10 | 1.4541 | – | SUS 321 | 2337 | – |
| 321h | S32109 | 321S51 | X10CrNiTi18-10 | 1.4878 | – | SUS 321h | – | – |
321/321h Stainless Steel Boiler Tubes Standard Specifications
Spec. No.
Title
Scope
ASTM A213
Seamless Ferritic Stainless Steel and Austenitic Stainless Steel Tubes.
Pressure tubes, made from 16 grades of austenitic stainless steel and from 12 grades of ferritic Cr-Mo Alloy Steel.
ASTM A269
Austenitic Stainless Steel Boiler Tubing for General Service.
13 grades of austenitic stainless steel tubing for general corrosion-resisting and high-temperature service. (Types 304, 304L, 316, 316L, 317, 321, 347, 348 and XM grades).
ASTM A268
ASTM A268 Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service.
Covers standard specification for a number of grades of nominal wal thickness, welded ferritic and martensitic stainless steel tubing for general corrosion-resisting and high-temperature service.
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Size Range
- Outer Diameter: 9.52 mm to 101.40 mm
- Wall Thickness: 0.50 mm to 8.00 mm
- Length: Upto 30 Meter
- Specifications: ASTM, ASME, DIN EN (GERMAN), NF (AFNOR), JIS (JAPAN)
Supply Condition
- Bright Annealed / Solution Annealed & Passivated
Features
- Ability to supply tubes with stringent NDT Testing, Special Chemistry, Lower Residual Stress values.
- OD Polishing : Grit Polish from 120 to 600.
- Closer Dimensional Tolerance & higher Corrosion Resistance etc.
- We offer customized cut Length to save time of our customers.
321/321h SS Boiler Tubes Quality Control
To ensure a quality product, MPJ is holding certificate ISO 9001:2015, ISO 45001, OHSAS 14001, & CE-PED. We are also members of various renowned agencies and Chambers of Commerce including MASSMA, EEPC, FICCI, FIEO, Indian Merchants Chamber, etc. With state-of-the-art manufacturing processes, contemporary technologies, and proficient services, we consider: offering the finest quality, best in class products. Compliance with specifications as per standards, Outer Diameter, Thickness, Inside Diameter, Inside Finish, Marking, Ends, and Finishing. This ensures that we never face a rejection of the Stainless Steel 321h Boiler Tubes supplied.
Brand – 
SS 321 Boiler Tubes are marked in requirement of the international standards.
Format: ” BRAND-SIZE-SPECIFICATION-GRADE-HEAT NUMBER-LOT NUMBER “
This marking helps for the identification of the Boiler Tubes and supported with the Material Test Report. It is 100% traceable to our mill.
Available Stainless Steel Boiler Tubes Grades
Stainless Steel 321 Boiler Tubes Packing & Documentation
ASTM A269 TP321h Boiler Tubes are surface wash and clean to remove all impurities and stock in the warehouse. Then it is wrapped in thin plastic and also it ends are protected by plastic caps to avoid any damage in transit. Stainless Steel 321 Boiler Tubes is bundled in bubble wrap followed by assorting them in colored plastic bundles. An outer rope is tied to protect the tubing and they are packed in wooden box or container.
MPJ Provide Stainless Steel 321 Boiler Tubes and SS 321h Boiler Tubes with all necessary documents such as commercial invoice, packing list, Test Reports, HS Code, Country of Origin attested by the chamber of commerce, Fumigation Certificate, Warranty Letter, and Base Material Certificates. Every lot is supplied with a material test certificate as per EN 10204 NACE 3.1 standards indicating the chemical and mechanical properties of the SS 321 Boiler Tubes.
We also confirm the guarantee of the 321h SS Boiler Tubes supplied as per Purchase order specifications and attest the same in the Material Test Certificate. We also welcome any third party inspection from an agency nominated by the customer to comply with NACE 3.2 Certification if required by the customer at an extra cost.
SS 321/321h Boiler Tubes Application Industries
- Oil & Gas Exploration
- Petrochemicals and Refineries
- Cross Country Pipe Line for Gas & Water
- Pipes for Engineering purpose
- Thermal, Nuclear and Solar Power Plants
- Desalination Plants
- Chemical Industries
- Aerospace
- Atomic Energy
- Pharmaceutical
- Food and Dairy
- Automobile
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