316H Stainless Steel has a strong resistance to déformation par fluage when stainless steel pipework is exposed to high temperatures. Ensure reliable performance of your tuyau en acier inoxydable et raccords en acier inoxydable.
What Is 316H Stainless Steel? The High-Temp Workhorse!
316H Stainless Steel (UNS S31609) is a high-carbon version of 316 Stainless Steel. It is an austenitic chromium-nickel-molybdenum alloy. The high carbon content sets it apart, and the higher carbon content improves strength at high temperatures. It also improves creep resistance, which makes 316H stainless steel ideal for applications above 500 degrees Celsius (932 degrees Fahrenheit).
Key Advantages of 316H Stainless Steel
316H stainless steel resists deformation under load. It will not deform even at very high temperatures.
Plus élevé carbone content allows it to resist slow, permanent deformation over time. Good for long-term use.
Like 316 stainless steel, 316H stainless steel resists piqûre. In addition, it resists corrosion par crevasses. Contains molybdenum for excellent corrosion resistance.
Its chrome content creates a protective oxide layer. This extends service life in oxidising environments.
316H stainless steel is suitable for chemical processing, power generation and refining. Can handle corrosive media at high temperatures.
Composition chimique
| Élément | Cr | Ni | Mo | C | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|---|
| Contenu (%) | 16.0 – 18.0 | 10.0 – 14.0 | 2.0 – 3.0 | 0.04 – 0.10 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 |
Ce que nous faisons
Propriétés mécaniques typiques
| Résistance à la traction | Limite d'élasticité (décalage de 0,2%) | Élongation | Dureté (HRB) | Densité | Plage de fusion |
|---|---|---|---|---|---|
| ≥515MPa(75ksi) | ≥205MPa(30ksi) | ≥40 | ≤95 | 8,0 g/cm³ | 1370-1400°C |
316H Stainless Steel in High-Temperature Piping Applications
- Pressure Vessels: Handling of high temperature and high pressure vessels, including steam headers and échangeurs de chaleur.
- Boiler components: 316H stainless steel is used for superheater and reheater pipework. Can withstand high heat and steam pressures.
- Refinery Piping: Commonly found in petrochemical plants and can be used to handle hot process fluids. This includes furnaces and crackers.
- Power Plants: Components that come into contact with flue gases or hot steam can be made of 316H Stainless Steel.
- Chemical Process Piping: Used for transporting hot corrosive chemicals. 316H maintains strength and corrosion resistance.
Sourcing 316H Stainless Steel Pipe and Fittings
Vérifier la conformité avec Normes ASTM. ASTM A312 couvre sans couture et tube soudé en acier inoxydable. L'ASTM A403 couvre les produits corroyés acier inoxydable austénitique les raccords.
Veiller à ce que les tuyaux et les raccords respecter les dimensions requises. Cela inclut les spécifications (par exemple, Sch 10S, Sch 40S). Un ajustement correct est essentiel.
Voir le document de spécification des tubes en acier inoxydable
Travailler avec des fabricants réputés who offer reliable 316H steel products and have certifications(par exemple ISO 9001 et CE-PED).
Demandez toujours Rapports d'essais de matériauxqui confirment la composition chimique et vérifient les propriétés mécaniques.
While 316H is designed for high temperatures, specific welding procedures are critical. If your application requires it, ensure proper traitement post-soudure.
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