used in bridge engineering a572 grade 50 bridge material


Railroad Bridge - Bridge engineering - Eng-Tips

Railroad Bridge - Bridge engineering - Eng-Tips

Dec 12, 2005 · ASTM A709 Grade 50 is the BRIDGE steel specification and ASTM A572 Grade 50 is the BUILDING steel specification This is a simplified summary since you could have a need to use the A709 spec for non bridge structures. The A709 spec was deveoped for structures such as bridges with high live load to dead load ratios and repitive loading cycles.sp.infoI will offer the "quick" reply and hopefully others can expand on this further A good way to think about is:ASTM A709 Grade 50 is the BRIDGE st1The chemistries are identical. ASTM is careful to keep A 709 synchronized with its equivalent non-brige standards. The big difference between A 71No, AREMA said, two ASTM are the same. We can use any.HgTX Which company are you working at? I should work for you.Yes, but you need to order the ASTM A 572 to meet all the CVN toughness requirements given in the tables in the Materials section of the AREMA codeGood summary HgTX. yjung, You are much safer using the A709 callout since everyone will immediately understand this to be a bridge steel. As HgTX m(I just wanna clarify that I didn't see yjung's 17:59 post before I sent my 18:05 post. I certainly didn't mean to imply that I should be yjung'sI had to decide a # for the 60% submittal yesterday,due day. My total steel weight is 1.5 million #. Initally i decided to use $1.8/# for the 60%$2/lb. for railroad bridge sounds sorta reasonable or even low. Railroad bridges are quite labor-intensive in the fabrication phase, much more soSee more results Which steel grade is equivalent to A572Gr.50 in China Recently a lot of clients consult us about ASTM A572/A572M Grade 50 low alloy steel. And some are also interested in its equivelent material and want to know their difference as well. The equivalent grade for A572GR.50 low alloy/mild steel is Q345B. It is also well known by more and more foreign clients, and exported in large quantity. Below is chemical compasition and sp.info