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<p>This document specifies the mechanical and physical properties of bolts, screws, studs and nuts, with coarse pitch thread and fine pitch thread, made of corrosion-resistant stainless steels (i.e. martensitic stainless steels and precipitation hardening austenitic stainless steels) and nickel alloys, intended for use at high temperatures up to 800 °C.</p>
<p>Tests in accordance with Clause 9 are performed at the ambient temperature range of 10 °C to 35 °C, and other tests can be performed at higher temperatures, see Clause 10.</p>
<p>NOTE Fasteners specified in this document are also suitable when used at low temperatures, typically down to -50 °C. For more information, see ISO 3506-6.</p>
<p>The term “fasteners” is used in this document when bolts, screws, studs and nuts are considered all together.</p>
<p>ISO 3506-6 provides general rules and additional technical information on suitable stainless steels and nickel alloys as well as their properties.</p>
<p>This document applies to fasteners:</p>
<p>— with ISO metric thread in accordance with ISO 68-1,</p>
<p>— with diameter/pitch combinations in accordance with ISO 261 and ISO 262,</p>
<p>— with coarse pitch thread M3 to M39, and fine pitch thread M8×1 to M39×3,</p>
<p>— with thread tolerances in accordance with ISO 965-1 and ISO 965-2, and</p>
<p>— of any shape but with full loadability.</p>
<p>Stainless steel and nickel alloy fastener symbols can be used for sizes outside the diameter limits of this document (i.e. for bolts, screws and studs with <em>d</em> < 3 mm or <em>d</em> > 39 mm and for nuts with <em>D</em> < 5 mm or <em>D</em> > 39 mm), provided that all applicable chemical, mechanical and physical requirements are met.</p>
<p>Fasteners with reduced loadability (i.e. thin nuts and bolts, screws and studs with head or unthreaded shank weaker than the threaded shank) are not dealt with in this document.</p>
<p>This document does not specify requirements for functional properties such as:</p>
<p>— torque/clamp force properties,</p>
<p>— shear strength,</p>
<p>— fatigue resistance,</p>
<p>— weldability,</p>
<p>or</p>
<p>— properties of bolted joints and fasteners in high temperature environment (see test methods at high temperature for fasteners in Clause 10).</p>
Reģistrācijas numurs (WIID)
77705
Darbības sfēra
<p>This document specifies the mechanical and physical properties of bolts, screws, studs and nuts, with coarse pitch thread and fine pitch thread, made of corrosion-resistant stainless steels (i.e. martensitic stainless steels and precipitation hardening austenitic stainless steels) and nickel alloys, intended for use at high temperatures up to 800 °C.</p>
<p>Tests in accordance with Clause 9 are performed at the ambient temperature range of 10 °C to 35 °C, and other tests can be performed at higher temperatures, see Clause 10.</p>
<p>NOTE Fasteners specified in this document are also suitable when used at low temperatures, typically down to -50 °C. For more information, see ISO 3506-6.</p>
<p>The term “fasteners” is used in this document when bolts, screws, studs and nuts are considered all together.</p>
<p>ISO 3506-6 provides general rules and additional technical information on suitable stainless steels and nickel alloys as well as their properties.</p>
<p>This document applies to fasteners:</p>
<p>— with ISO metric thread in accordance with ISO 68-1,</p>
<p>— with diameter/pitch combinations in accordance with ISO 261 and ISO 262,</p>
<p>— with coarse pitch thread M3 to M39, and fine pitch thread M8×1 to M39×3,</p>
<p>— with thread tolerances in accordance with ISO 965-1 and ISO 965-2, and</p>
<p>— of any shape but with full loadability.</p>
<p>Stainless steel and nickel alloy fastener symbols can be used for sizes outside the diameter limits of this document (i.e. for bolts, screws and studs with <em>d</em> < 3 mm or <em>d</em> > 39 mm and for nuts with <em>D</em> < 5 mm or <em>D</em> > 39 mm), provided that all applicable chemical, mechanical and physical requirements are met.</p>
<p>Fasteners with reduced loadability (i.e. thin nuts and bolts, screws and studs with head or unthreaded shank weaker than the threaded shank) are not dealt with in this document.</p>
<p>This document does not specify requirements for functional properties such as:</p>
<p>— torque/clamp force properties,</p>
<p>— shear strength,</p>
<p>— fatigue resistance,</p>
<p>— weldability,</p>
<p>or</p>
<p>— properties of bolted joints and fasteners in high temperature environment (see test methods at high temperature for fasteners in Clause 10).</p>
