Alloy 926 / 1.4529

Alternative und Handelsbezeichungen
SixMo®, Ultra 6XN®, AL-6XN®, Cronifer 1925hMo®

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Description

The austenitic stainless steel 6Mo was developed on basis of Alloy 904l / 1.4539. However, the molybdenum content at 6Mo was raised to 6.5%.

Related Standards

Equivalent Materials

Diese Materialdaten wurden von Hempel Special Metals zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

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Eigenschaften

Allgemein

Property	Temperature	Value
Dichte	23.0 °C	8.1 g/cm³ Show Supplier Material materials with Dichte of 8.1 g/cm³

Chemical properties

Property	Value	Comment
Chrom	20 - 21 % Show Supplier Material materials with Chrom of 20 - 21 %
Eisen	Balance
Kohlenstoff	0.02 % Show Supplier Material materials with Kohlenstoff of 0.02 %	max.
Kupfer	0.8 - 1 % Show Supplier Material materials with Kupfer of 0.8 - 1 %
Mangan	1 % Show Supplier Material materials with Mangan of 1 %	max.
Molybdän	6 - 6.8 % Show Supplier Material materials with Molybdän of 6 - 6.8 %
Nickel	24.5 - 25.5 % Show Supplier Material materials with Nickel of 24.5 - 25.5 %
Phosphor	0.03 % Show Supplier Material materials with Phosphor of 0.03 %	max.
Schwefel	5E-3 % Show Supplier Material materials with Schwefel of 5E-3 %	max.
Silizium	0.5 % Show Supplier Material materials with Silizium of 0.5 %	max.
Stickstoff	0.18 - 0.2 % Show Supplier Material materials with Stickstoff of 0.18 - 0.2 %

Technological properties

Property
Application areas	1.4529 is mainly in following applications: Concentration and crystallization plants for salt production by evaporation Condenser pipes and pipeline systems in power plants with highly polluted cooling water Pump rods for oil delivery systems Evaporators, heat exchangers, tank linings etc. and phosphoric acid production Tanks for transport of aggressive chemical products Distribution systems and coolers for sulfuric acid plants Fire extinguishing systems, seawater filtration, hydraulic and injection systems of offshore technology Flexible pipes in the offshore industry Flue gas desulphurisation plants (FGD) Approval for pressure vessels with temperatures between -196 and 400 ° C Building construction approval for components and fasteners made of stainless steel, German Institute of Structural Engineering, September '98
Corrosion properties	6Mo has excellent general corrosion resistance and improved resistance to pitting and crevice corrosion. The resistance to stress corrosion cracking is also increased. It is often referred as super austenitic stainless steel. Generally it has the following corrosion properties: Increased resistance to stress corrosion cracking compared to other austenitic stainless steels excellent general corrosion resistance in use of oxidizing as well as reducing media less tendency to form intermetallic phases compared to similar steels with only 18% nickel content very good resistance at pitting and crevice corrosion
Hot forming	The material is hot formed within a temperature range of 1200 and 900 ° C and afterwards quenched rapidly in water or air. The annealing tALes place at 1200 ° C. After hot forming, heat treatment for optimum corrosion resistance is recommended.
Other	The material Alloy 6XN (UNS N08367) was developed in the USA. This has an almost identical composition and is used in the same applications. However, this material is not listed in the VdTÜV sheet and does not have its own Werkstoffnummer. An use in European pressure applications is therefore difficult. The almost identical material is once used in Europe as 1.4529 and in the USA as UNS N08367. At Hempel, we have therefore stocked the material with double certification so that it can be used internationally.