STAINLESS STEEL METRIC BOLT GRADES AND STRENGTH

Grades and strength of bolts, screws and studs made of corrosion-resistant stainless steels are specified in the EN ISO 3506-1:2009 standard. Strength grades A1, A2, A3, A4, A5, C1, C4, C1, C3, F1 and strength classes 45, 50, 60, 70, 80, 110 for stainless steel bolts are covered in this standard.

Some important notes from EN ISO 3506-1:2009 standard:

- Standard specifies the mechanical properties of bolts, screws and studs made of stainless steels when tested at an ambient temperature range of 10 °C to 35 °C.

- with nominal thread diameter d ≤ 39 mm and with triangular ISO thread


Calculator:

INPUT PARAMETERS
Steel Grade
Property Class

 


RESULTS
Parameter Symbol Value Unit
Steel Group  - --- ---
Steel Grade - ---
Property Class - ---
Minimum Tensile Strength Rm_min --- MPa
Minimum Stress at 0,2 %
non-proportional elongation		 Rp0.2_min ---





Definitions:ns:

Stainless Steel: A steel alloy which is highly resistance to corrosion. The predominant alloying element is chromium.

Supplements:



Link Usage
Metric Thread Size and Tolerance Calculator Calculates basic major, minor and pitch diameters of the metric external (bolt) thread and internal (nut) thread according to ISO 724:1993 standard. In addition to basic size calculations, tolerance calculations of different tolerance classes can be done according to ISO 965-1:1998 and ISO 965-2:1998 standards.

Reference:
  • ISO 3506-1:2009: Mechanical properties of corrosion-resistant stainless steel fasteners – Part 1: Bolts, screws and studs