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Category: Heat Treatment-Martensitic & PPN Harden.

  1. Ambient temperature mechanical properties of stainless steels to BS EN 10269

    BS EN 10269 is the material standard for stainless and heat-resisting steels, a selection of low alloy steels and some nickel alloys for fasteners. The ambient temperature mechanical properties shown in this article include 0.2% proof strength, tensile strength, elongation, reduction in area and impact (charpy) strength in the finally heat treated condition. Specified hardness levels for the steels for subsequent quenching and tempering (1.4923 1.4938 and 1.4913) in their delivery condition are also included.

  2. Elevated and sub-zero temperature mechanical properties of stainless steels to BS EN 10269

    BS EN 10269 is the material standard for stainless and heat-resisting steels, a selection of low alloy steels and some nickel alloys for fasteners. The elevated and sub-zero temperature mechanical properties shown in this article include 0.2% proof, tensile and impact (charpy) strengths.

  3. Elevated and sub-zero temperature mechanical properties of stainless steels to BS EN 10272

    BS EN 10272 is the material standard for stainless steel bars for pressure purposes. The elevated and sub-zero temperature mechanical properties shown in this article include 0.2% proof, tensile and impact (charpy) strengths. Generally, the grades included have the same chemical compositions as bar grades specified in BS EN 10088-3, which also tabulates their ambient temperature mechanical properties. The exception is grade 1.4951 which was added in the 2007 edition of the spec. Recommended annealing heat treatment temperatures for the steels covered are also tabulated.

  4. Elevated temperature mechanical properties for stainless steels specified in BS EN 10028-7

    PLEASE NOTE THAT PREVIOUS VERSIONS OF THIS ARTICLE HAD A SIGNIFICANT ERROR IN THE VALUES SHOWN FOR PROOF STRENGTHS OF DUPLEX STAINLESS STEELS. THE PRESENT ARTICLE HAS BEEN THOROUGHLY REVISED TO REFLECT THE VALUES GIVEN IN THE STANDARD. Design tensile stress values at temperatures up to 550°C are tabulated for all ferritic, martensitic and duplex types covered in the BS EN 10028-7 standard. Space limits the range of austenitic grades that can be conveniently displayed and so only a selection of some of the more 'common' the austenitic grade properties are included. Recommended annealing heat treatment temperatures for the steels covered are also tabulated.

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