ISO 3506-5:2022 ✓ Most Recent

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.

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.

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.

The term "fasteners" is used in this document when bolts, screws, studs and nuts are considered all together.

ISO 3506-6 provides general rules and additional technical information on suitable stainless steels and nickel alloys as well as their properties. See more