JIS B 1054-2:2001

This part of JIS B 1054 specifies the mechanical properties of nuts made of austenitic, martensitic and ferritic grades of corrosion-resistant stainless steels when tested over and ambient temperature range of 15 degree C to 25 degree C. Properties will vary at higher or lower temperatures. It applies to nuts - with nominal thread diameters (d) up to and including 39 mm: - of triangular ISO metric threads with diameters (d) and pitches in accordance with JIS B 0205 and JIS B 0207; - of any shape; - with width across flats as specified in JIS B 1002; - with nominal heights greater than or equal to 0.5 d. It does not apply to nuts requiring properties such as - locking abilities; - weldability. This part of JIS B 1054 does not define corrosion or oxidation resistance in particular environments. The aim of this part of JIS B 1054 is a classification into property classes of corrosion-resistant stainless-steel fasteners. Some materials can be used at temperatures down to - 200 degree C, some can be used at temperatures up to + 800 degree C in air. Information on the influence of temperature on mechanical properties is found in annex D. Corrosion and oxidation performances and mechanical properties for use at elevated or sub-zero temperatures must be the subject of agreement between user and manufacturer in each particular case. Annex E shows how the risk of intergranular corrosion at elevated temperatures depends on the carbon content. All austenitic stainless steel fasteners are normally non-magnetic in the annealed condition; after cold working, some magnetic properties may be evident (see annex F).

Reaffirmed 2010