what is uns s30815 plate equivalent？
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What is the standard for UNS S30815?
UNS S30815 material is often specified for pressure vessels and high-temperature applications, such as ASTM A240 or ASME SA240 standards.
What material is uns S30815?
UNS S30815, commonly known as 253MA or Werkstoff Number 1.4835, is a lean-alloyed, heat-resistant austenitic stainless steel. It is engineered for high-strength and superior oxidation resistance at elevated temperatures (up to 1150°C/2100°F) by alloying with rare earth metals, silicon, and nitrogen. It is commonly used in furnace components and heat treatment applications.
What grade is uns S30815 equivalent to?
UNS S30815 is a high-temperature austenitic stainless steel, primarily equivalent to 253 MA® (or 253MA), EN 1.4835, and X9CrNiSiNCe21-11-2. It is widely used in high-temperature environments (up to 1150°C), such as furnace components, petrochemical tube hangers, and heat-resistant fasteners, due to its high creep strength and oxidation resistance.
|
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
||
|
BS |
En |
No |
Name |
|||
|
S30815 |
- |
- |
1.4835 |
X9CrNiSiNCe21-11-2 |
2368 |
- |
Composition ranges for 253MA grade stainless steel
|
|
C |
Mn |
Si |
P |
S |
Cr |
Ni |
N |
Ce |
|
min. |
0.05 |
- |
1.10 |
- |
- |
20.0 |
10.0 |
0.14 |
0.03 |
| max. |
0.10 |
0.80 |
2.00 |
0.040 |
0.030 | 22.0 | 12.0 | 0.20 | 0.08 |
Mechanical properties of 253MA grade stainless steel
|
Tensile Str (MPa) min |
Yield Str 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|
Rockwell B (HR B) max |
Brinell (HB) max |
|||
|
600 |
310 |
40 |
95 |
217 |
Physical properties of 253MA grade stainless steel
|
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (mm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat |
Electrical Resistivity (nW.m) |
|||
|
0-100°C |
0-600°C |
0-1000°C |
at 20°C |
at 1000°C |
||||
|
7800 |
200 |
17.0 |
18.5 |
19.5 |
15.0 |
29.0 |
500 |
850 |
ASTM A240 UNS S30815 stainless steel plate Applications
Heat Treatment Industry: Furnaces, furnace hoods, industrial furnace tubes and radiant tubes.
Energy and Chemical Industry: Waste heat recovery devices, boiler components, heat exchangers.
Environmental Protection Equipment: Waste incinerator components, exhaust gas treatment systems.
Paper and Metallurgy: Cyclone separators, conveyor belt components.
What are the high-temperature properties of UNS S30815 stainless steel plate?
UNS S30815 (also known as 253MA) is an austenitic stainless steel designed to provide exceptional high-temperature strength and oxidation resistance at temperatures up to 1150°C (2100°F). Compared to 310 grade stainless steel, it exhibits superior high-temperature creep strength, achieved through microalloying with the addition of rare earth metals and nitrogen. Its key properties include excellent resistance to cyclic oxidation, carburization, and sulfidation.
What is the difference between UNS S30815 Stainless Steel and S31008?
UNS S30815 (commonly known as 253 MA) and S31008 (310S) are both austenitic stainless steels designed for high-temperature service, but they differ significantly in their chemical composition, high-temperature strength, and performance in specific corrosive atmospheres.
Comparison Table
| Feature | UNS S30815 (253 MA) | S31008 (310S) |
|---|---|---|
| Nickel Content | Lower (~11%) | Higher (~20%) |
| Chromium Content | ~21% | ~25% |
| Key Additions | Silicon, Nitrogen, Cerium | High Cr/Ni base |
| High-Temp Strength | Superior (higher creep strength) | Lower than 253MA |
| Sulfidation Resistance | Superior | Moderate |
| Oxidation Limit | ~1150°C (2100°F) | ~1149°C (2100°F) |
| Cost | Generally higher alloy cost | Generally lower alloy cost |
What is the difference between 253MA and 304?
The micro alloy addition of cerium as well as silicon gives RA 253 MA good oxidation resistance up to 2000°F. 304 and 316 stainless steels are only oxidation resistant to 1600°F. RA 253 MA is ASME section VIII, Div 1 approved for pressure vessels up to 1650°F, while 304 and 316 are only approved up to 1500°F.
UNSS30815 /253MA/ EN 1.4835 Plates & Sheets Manufacturer
GNEE boasts over 18 years of export experience, possessing extensive knowledge of various sea and air freight packaging standards to ensure that its plates remain scratch-free and rust-free during transoceanic transport. We maintain a stock of commonly used thicknesses, enabling delivery in as little as 3-7 days. We also maintain long-term strategic partnerships with top domestic steel mills (such as TISCO and Baosteel). For special alloys like S30815, we can guarantee the authenticity of our supply and the stability of each batch.
GNEE's Processing and Service Capabilities:
Precision Cutting: Equipped with large laser cutting machines (high precision, small heat-affected zone) and waterjet cutting (no heat deformation), capable of processing irregularly shaped parts according to drawings.
Surface Treatment: Providing finishes such as wire drawing, mirror polishing, and coating to meet decorative or special industrial needs.
Forming Processing: Offering one-stop services including CNC bending, rolling, and welding prefabrication.
UNS S30815 Product Specifications
| Product Form | Size Range | Surface Finish |
|---|---|---|
| Hot Rolled Plate | Thickness: 3 mm – 100 mm; Width: 1500 mm – 3000 mm | No.1, Pickled |
| Cold Rolled Sheet | Thickness: 0.3 mm – 6.0 mm; Width: 1000 mm – 1500 mm | 2B, BA, No.4, 8K |
| Custom Sizes | Medium & heavy plate cutting; Extra wide/long plate customization available | Laser / Plasma / Waterjet Cutting |
Standards Compliance:ASTM A240, ASME SA240, EN 10088-2, EN 10095
Our technical team not only supplies materials but also provides advice based on the characteristics of S30815. For example, welding advice: We offer recommendations for compatible welding materials (such as matching 253 MA welding wire) to prevent weld cracks.
If you have specific thickness or size requirements, GNEE can provide you with an instant quote and technical consultation at any time.
