1.4006 / DIN X12Cr13 – AISI 410 – UNS S41000

1.4006 is a Cr-containing martensitic steel that exhibits good mechanical properties together with good corrosion resistance in moderately corrosive environments. It can be hardened. It shows very good anticorrosion property in its cured condition. It has very good cold workability in the annealed condition. It is very suitable for forks, knives and scissors.

Piping heat exchangers and recuperators in petrochemical industries; It is used in steam and water valves fittings, kitchen tools and sports equipment. It is also commonly seen in decorative applications, pump components and mechanical engineering applications.

As a result of the nominal chromium content, 1.4006 shows moderate corrosion resistance to mildly aggressive, chloride-free media such as soap, detergent and organic acid. It is also resistant to oxidizing environments up to about 600°C. It is fragile at low temperatures.

1.4006 is delivered in both annealed and quenched and tempered conditions. The annealed state is obtained by heating in the temperature range 745°C to 825°C followed by slow cooling in an oven. After holding at a temperature between 950 and 1000°C, it can be heat treated by air or oil hardening. Although a range of mechanical properties can be achieved by tempering at different temperatures, the QT 650 condition is generally specified and can be achieved by tempering in the 680°C to 780°C temperature range.

For thicker dimensions the mechanical properties (d ³ 160 mm) must be agreed or the delivered product must be based on the given values.

The workpiece is usually preheated to a temperature between 100 and 300°C and when welded with a filler material according to 1.4006, the welding is usually followed by an annealing process. When using austenitic filler material such as AISI 307Si, the workpiece does not need to be preheated. Annealing at a temperature of 650°C is recommended to ensure the return of ductility to the weld zone. Due to the high strengths that can be achieved with this steel and the possible harmful effects of hydrogen embrittlement, care should be taken to avoid hydrogen from the shielding gas into the weld pool or moisture from the workpiece and / or source. Nitrogen-containing shielding gases cannot be used, either.

Care should be taken when forging 1.4006, as gradual heating to a temperature of about 800°C is recommended before faster heating to a temperature between 1150°C and 1180°C. Then forging takes place at 1180°C - 950°C, followed by slow cooling in a furnace or dry ash or similar to support slow cooling.

The information given in this data sheet about the condition or availability of the material is not a guarantee for its properties, it only serves as an explanation. The information provided as advice is consistent with our own experience as well as general experience. No guarantee is given for the processing and application results of the products.