A silver halide photographic material for industrial radiography is disclosed comprising a film support and on one or both sides thereof at least one silver halide emulsion layer which is characterized in that each gelatino silver halide emulsion layer comprises as silver halide silver chloride or silver chlorobromide wherein the amount of bromide is not more than 10 mole %; has a gelatin to silver halide (expressed as silver nitrate) ratio from 0.2 to 0.6 and a total amount of silver halide corresponding to from 11 g to 35 g of silver/m.sup.2 and in that the photographic material has been fore-hardened to such an extent that when it is immersed in demineralized water of 25.degree. C. for 3 minutes there is not absorbed more than 3.0 g of water per gram of gelatin, and wherein said material further comprises a dihydroxybenzene compound and a 3-pyrazolidine-1-one compound as developing agents. Moreover a method for developing a radiographically exposed photographic material is disclosed comprising the step of contacting the exposed photographic material with an aqueous alkaline liquid, called activator liquid, being initially substantially free from developing agent(s), having a pH value of at least 10 and containing a primary and/or secondary amine.