Content with Proof Load

Chemical Composition As per DIN 267-4 Class C max. Mn min. P max. S max. 4, 5 and 6 0.50 - 0.110 0.150 8 0.58 0.30 0.060 0.150 10 0.58 0.30 0.048 0.058 12 0.58 0.45 0.048 0.058 Mechanical Properties As per DIN 267-4 Property Class 4 Class 5 Class 6 Class 8 Class 10 Class 12 Proof load stress (N/mm^2) 400 500 600 800 1000 1200 Symbol |4| |5| |6| |8| |10| |12| Hardness Vickers HV5
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Thread d Nominal stress area of standard test mandarel (mm^2) Property Class 8 (N) Property Class 10 (N) M12 84.3 84300 97800 M16 157 157000 182100 M20 245 245000 284200 M22 303 303000 351200 M24 353 353000 409500 M27 459 459000 532400 M30 561 561000 650800 M36 817 817000 947700 The Proof Load values are based on stress of 1000 MPa for property class 8; and 1160 MPa for property class 10.
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Chemical composition for Austenitic Stainless Steel (Cast analysis, mass fraction in %) Grade C Si Mn P S Cr Mo Ni Cu N Other elements and notes A2 0.10 1.00 2.00 0.050 0.030 15.0-20.0 - 1) 8.0-19.0 4.0 - 2) 3) A4 0.08 1.00 2.00 0.045 0.030 16.0-18.5 2.00-3.00 10.0-15.0 4.0 - 2) 4) 1) Molybdenum may be present. 2) If maximum carbon (C) is 0.030, nitrogen (N) may be present at maximum of 0.
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Andrews Fasteners operate a fully controlled quality system maintaining traceability of products from their initial source of supply, into stock, directly through to dispatch to the customer. Andrews Fasteners quality system is registered under BS EN ISO 9001 and NHSS3 (National Highway Sector Scheme 3) and has been assessed by Lloyd’s Register Quality Assurance UK LRQA . Our company also hold UKCA & CE approval for the supply of preload (BS EN 14399) and non-preload (BS EN 15048) fasteners.
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