Before revision: + Ultimate tensile stress for usual structural steels Steel grades (EN standard) S235 S275 S355 Ultimate tensile stress fu (MPa) 360 430 510 When the parts are in wood, the acceptable limit pressure is about 4 to 8.5 MP .
After revision: + Ultimate tensile stress for usual structural steels Steel grades (EN standard) S235 S275 S355 Ultimate tensile stress fu (MPaa) 360 430 510 When the parts are in wood, the acceptable limit pressure is about 4 to 8.5 MP .