Suppose one has to calculate with A2-70, or more specific with 1.4404 +C700 acc. EN 10269.
For the allowable bolt stress the EN 13445-3 §6.1.1 clearly excludes bolts, and refers to clause 11 and 12 of EN 13445-3.
In §11.4.3.1 for austenitic material it states fB = Rm,t/4. This means tensile...