What material is 1.4919 equivalent to?
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What is en 1.4919 material?
en 1.4919 stainless steel is a high-carbon version of 316 stainless steel, also known as UNS S31609 / W.Nr. 1.4919 stainless steel. 316H alloy stainless steel is a high-carbon version of 316 stainless steel, specifically designed for structural and pressure vessel applications operating at temperatures above 932°F (500°C). The higher carbon content improves tensile strength, yield strength, and creep resistance.
is EN 1.4919 a direct equivalent to ASTM 316H?
Yes, EN 1.4919 (X6CrNiMo17-12-2) is a close match with similar high carbon (0.04-0.08%) and molybdenum (2.0-2.5%) for equivalent creep resistance and pitting performance; it's fully interchangeable for high-temperature applications in EU projects under PED, with tensile strength ≥515 MPa and PREN 24-26 aligning closely, though verify Mo range for specific chloride exposure.
What material is 1.4919 equivalent to?
EN 1.4919 is equivalent to ASTM/AISI 316H (or S31609) stainless steel, a high-carbon grade of 316 designed for high-temperature strength, offering superior creep resistance and toughness, common in chemical/petrochemical industries, but you might see comparisons to other steels like AISI 422 for property matching.
316H Austenitic Stainless Steel Equivalent Grades
| ASTM/AISI | WERKSTOFF NR. | UNS | GOST | GB | JIS | DIN | EN | OR |
| Alloy 316H | 1.4919 | S31609 | / | / | SUS316H | / | 1.4919 | – |
Chemical Composition of 1.4919 Stainless Steel
|
Element |
Percentage (%) |
|
Carbon (C) |
0.04 - 0.10 |
|
Chromium (Cr) |
16.00 - 18.00 |
|
Nickel (Ni) |
10.00 - 14.00 |
|
Molybdenum (Mo) |
2.00 - 3.00 |
|
Manganese (Mn) |
2.00 max |
|
Silicon (Si) |
0.75 max |
|
Phosphorus (P) |
0.045 max |
|
Sulfur (S) |
0.030 max |
316H Austenitic Stainless Steel Mechanical Properties
| Density | Melting Range | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.00 g/cm3 | 1400°C | ≥515Mpa | ≥205Mpa | ≥40% |
1.4919 Stainless Steel's Corrosion Resistance
1.4919 stainless steel offers excellent oxidation and corrosion resistance at elevated temperatures up to 650–700°C, mainly due to its Cr content of 10.5–13% and Mo addition of 0.3–0.8%, making it suitable for power plant components, turbines, and high-temperature structural parts.
Is 1.4919 Stainless Steel Magnetic?
Yes, 1.4919 stainless steel is magnetic because it is a martensitic heat-resistant steel; its microstructure remains predominantly martensitic even after tempering, giving it strong magnetic permeability comparable to other Fe-Cr martensitic alloys.
What is the difference between 1.4919 material and 1.4401?
1.4919 (316H) is a high-carbon variant of 1.4401 (316), designed for high-temperature strength, while 1.4401 offers excellent general corrosion resistance, especially in chloride environments due to molybdenum, making it 'marine-grade'. The main difference is 1.4919's higher carbon content boosts its strength at elevated temperatures, whereas 1.4401 (and its low-carbon 1.4404/316L version) prioritizes superior pitting/crevice resistance for welded applications.
What's the difference between ASTM 316H equivalents and 304H?
ASTM 316H equivalents like EN 1.4919 include 2-3% molybdenum for superior pitting in chlorides (PREN 24-26 vs 18-20 for 304H equivalents), making them better for wet high-temperature environments; however, both share high carbon for creep, with 316H types costing 20-30% more due to Mo, so use 316H equivalents when corrosion is key and 304H for mild oxidizing heat to save costs.
Is BS 316S51 equivalent to ASTM 316H?
Yes, BS 316S51 aligns with EN 1.4919 and offers matching high carbon and molybdenum per BS EN 10088, providing the same creep resistance and pitting for UK-based projects; it's interchangeable for pressure vessels under BS standards, with elongation ≥40% and hardness ≤217 HB mirroring ASTM requirements.
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