ASTM A312 UNS S30815 stainless steel heat exchanger tubes
ASTM A312 UNS S30815 stainless steel seamless tubes are designed for continuous operation in high-temperature environments up to 1150°C. They offer exceptional oxidation and scaling resistance, making them ideal for furnace tubes, heat exchangers, and other heat treatment equipment.
The ASTM A312 UNS S30815 stainless steel tubes are manufactured using a seamless process, ensuring a uniform, pore-free, and weld-free structure. Compared to welded tubes, this results in higher mechanical strength, better pressure resistance, and superior leak-proof performance. This significantly extends the service life of components in demanding applications, reducing downtime and maintenance costs, thus lowering the total cost of ownership. Manufactured in full compliance with ASTM A312/ASME SA312 standards, ensuring material quality, traceability, and reliable performance for international projects in power generation, petrochemical, and industrial heating applications.
Specifications
Specifications : ASTM A312 / A269 / A358
Standard : DIN, ASTM, BS and all International Standards
Pipe Size : 1/2″ to 16″NB
ERW Pipe Size : 1/2″ to 24″NB
EFW Pipe Size : 6″NB to 100″NB
Thickness : 0.35mm to 6.35mm OD in thickness ranging from 0.1mm to 1.2mm
Type : Seamless, ERW, Welded, Fabricated, LSAW.
Form : Round, Square, Rectangular, Hydraulic etc.
Length : Single Random, Double Random and Cut Length.
End : Plain End, Beveled End, Threaded etc.
Chemical Composition of Grade S30815 (UNS S30815)
| Element | Requirement (%) | Notes |
|---|---|---|
| Grade Designation | S30815 | Austenitic heat-resistant steel (RA 253 MA) |
| UNS Designation | S30815 | |
| Carbon (C) | 0.05 - 0.10 | |
| Manganese (Mn), max | 0.8 | |
| Phosphorus (P), max | 0.04 | |
| Sulfur (S), max | 0.03 | |
| Silicon (Si) | 1.40 - 2.00 | For high-temperature oxidation resistance |
| Chromium (Cr) | 20.0 - 22.0 | |
| Nickel (Ni) | 10.0 - 12.0 | |
| Nitrogen (N) | 0.14 - 0.20 | For solid solution strengthening |
| Cerium (Ce) | 0.03 - 0.08 | Rare earth element for improved oxide scale adhesion |
Annealing Requirements for Grade S30815
| Parameter | Specification | Notes |
|---|---|---|
| Grade or UNS Designation | S30815, S31272 | This annealing requirement applies to both UNS S30815 and S31272. |
| Heat Treating Temperature | 1920 °F [1050 °C] |
Tensile Requirements for UNS S30815
| Property | Specification | Notes |
|---|---|---|
| Grade | (Referred to as TP30815) | The UNS number is the primary identifier in this table row. |
| UNS Designation | S30815 | Austenitic heat-resistant steel (e.g., RA 253 MA) |
| Tensile Strength, min | 87 ksi 600 MPa |
|
| Yield Strength (0.2% Offset), min | 45 ksi 310 MPa |
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Testing and Inspection
We conduct comprehensive, independent quality inspections throughout the entire process, covering material composition, intergranular corrosion, hardness, pitting corrosion, chemical composition analysis, and third-party testing. We also perform additional specialized tests based on customer application requirements to ensure that every pipe meets the required standards.
Highest quality packaging and shipping
ASTM A213 TP 310/310S Seamless Tube may be furnished bare or coated and with capped ends. tubes up to 3" OD will be supplied in bundles. In order to prevent rust during sea shipment, bundles of ASTM A213 TP 310/310S Stainless Steel Seamless Tubes may be wrapped with polypropylene sheets, and secured with flat steel bands. Over 3" OD will be supplied loose.
Customer Visit
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