Mechanical properties of fasteners - austenitic steel types

Excerpt from DIN EN ISO 3506-1:2010

Steel group	Steel type	Property class	Tensile strenght  Rma min. MPa	0.2% yield strength  Rp0.2a min. MPa	Fracture elongation  Ab min. mm
Austeniczna	A1, A2, A3, A4 oraz A5	50	500	210	0,6 d
		70	700	450	0,4 d
		80	800	600	0,3 d

 

a - The tensile strength is calculate in relation to the strain cross-section (see DIN ISO 3506-1)
b - The ultimate elongation is determined according to 7.2.4 on the relevant screw length and not on turned samples  d  is the normal diameter.