| Product Description | ||||
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Sandvik 6R44 is an austenitic, niobium-stabilized stainless chromium-nickel steel for use at temperatures up to 850°C (1560°F).
Applications Sandvik 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 sulphide and intergranular corrosion, Sandvik 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. |
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Material Status
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Availability
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| Available Documents | |||
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Technical Datasheet (English)
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| Metals General |
Nominal Value
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Unit
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Applicable Specifications
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Forms Available
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Metal Type (Annealed)
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Alloy Identification
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| Metals Type Analysis |
Nominal Value
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Unit
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Type Analysis
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Carbon
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%
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Chromium
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%
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Manganese
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%
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Nickel
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%
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Niobium
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%
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Phosphorus
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%
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Silicon
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%
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Sulfur
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%
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| Metals Physical |
Nominal Value
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Unit
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Density
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lb/in³
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| Metals Mechanical |
Nominal Value
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Unit
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Tensile Strength (Ultimate) (68°F)
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ksi
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Tensile Strength (Yield), 0.2% (68°F)
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ksi
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Tensile Elongation (Break) 2 (68°F)
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%
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Hardness (HV-Scale, 68°F)
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Tensile Modulus (68°F)
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ksi
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| Metals Thermal |
Nominal Value
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Unit
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Mean Specific Heat (73°F)
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Btu/lb/°F
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Mean CTE (86 to 212°F)
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in/in/°F
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Thermal Conductivity (73°F)
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Btu·in/hr/ft²/°F
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| Notes |
| 1Typical properties: these are not to be construed as specifications. |
| 2Based on L0 = 5.65 sqrt(S0) where L0 is the original gauge length and S0 the original cross-section area. |
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