347 / 347H
Alleima® 6R44 is an austenitic, niobium-stabilized stainless chromium-nickel steel for use at temperatures up to 850°C (1560°F).
Standards:
- ASTM: TP347, TP347H
- UNS: S34700/S34709
- EN Number: 1.4550/1.4912
- EN Name: X6CrNiNb18-10/X7CrNiNb18-10
- W.Nr.: 1.4550
- DIN: X 6 CrNiNb 18 10
- SS: 2338
- AFNOR: (Z6CNNb 18.10)
- BS: 347S31/347S51
Product standards
Seamless tube and pipe:
- ASTM A213, A269, A312, A376
- EN 10216-5
- BS 3059 Part 2, BS 3605 Part 1, BS 3606
- DIN 17456,17458
- SS 14 23 38
Aplications:
Alleima® 6R44 is used for superheater tubes in steam power plants.
It is also frequently used for cooling tubes in ammonia converters, because of its good resistance to nitrogen
absorption and good corrosion resistance.
With its good hot-strength, and good resistance to hydrogen sulfide and intergranular corrosion, Alleima® 6R44
is a suitable material for furnace tubes in refineries.
Furnace tubing used in vinyl chloride production is another example of applications in which this steel is often used.
ACEROS TITANIUM no garantiza la exactitud de la información contenida en este documento y recomienda que los usuarios investiguen en profundidad aspectos técnicos y especificaciones antes de realizar una compra. Esta información técnica ha sido recompilada de diversas fuentes en línea, incluyendo Alleima, Ovako y Roxon entre otras. Esta ficha técnica ha sido proporcionada solo para fines informativos y no ha sido verificada de forma independiente por ACEROS TITANIUM CHILE LTDA.