hat
ASTM A709, Specification Creole pou estrikti Steel pou pon, pwa pote ak konpozan ki bay sipò. Estanda sa a se aplikab a pon kabòn asye ak ba alyaj segondè-fòs estriktirèl asye, asye plak ak ba, menm jan tou fè tèt di toujou ak tanperaj asye estriktirèl asye plak. Genyen nèf klas ak kat fòs rupture pou spesifikasyon sa a.
eng
ASTM A709, Standard Specification for Structure Steel for bridge,weight bearing and supportive components. This standard is applicable to bridge carbon steel and low alloy high-strength structural steel, steel plate and bar, as well as hardened and tempered alloy structural steel plate. There are nine grades and four tensile strength for this specification.