Category: Std Austenitic, Ferritic & Duplex Grades (page 4)
Standards, Specifications & Grades
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Mechanical properties of stainless steels to BS EN 10217-7 for welded stainless steel tubes for pressure purposes.
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In EN 10088-2 and EN 10088-3 the chemical composition ranges are defined for the cast analysis. Any subsequent product analysis may deviate from these ranges by the amounts specified in this article
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The special compositions, non-metallic inclusion, ferrite and grain size requirements of these steel grades, D and E, specified for surgical implants are outlined. Commercially produced 316 type steels cannot be used for surgical implants as the available composition and micro-cleanness information is very unlikely to meet the requirements of BS 7252-1, ISO 5832-1.
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BS EN 10151, (strip), and BS EN 10272-3, (wire), for springs are outlined. The grades in each standard are tabulated and compared to the BS 5770-4 and BS 2056, which they replace, where grades such as 301S21, 301S81, 302S26, 302S25, and 305S11 were specified. Grades listed include, 1.4016, 1.4021, 1.4028, 1.4031, 1.4568, (17/7 PH type), 1.4310, 1.4301, 1.4401, 1.4369, 1.4372, and 1.4568. Mechanical properties in the cold worked, (temper rolled for strip, drawn for wire), conditions are shown. Heat treated properties for precipitation hardening grade 1.4568 wire are also shown.
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Stainless steel bolts, screws, studs and nuts are specified to BS EN ISO 3506. The chemical composition and mechanical properties of austenitic, martensitic and ferritic grades are covered
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Summary of links to websites for download of stainless steel grade datasheets
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