I-Beams made of plates

[Chavita]

Hi everyone,

I haven´t been able to find a vendor within the USA of structural shapes (I-Beams) in materials such as ASTM A 36 Mod 1, ASTM A 131 GRADES CS, D AND E, or ASTM A633 GR. A.

First question: do you know a vendor of this materials?

Because I havent found those materials, now I want to fabricate the wide flange beams from plates. I might be helpful to tell you that this fabricated beams will be used for the roof structure of a a Refrigerated Tank acording to API 620 apendix R. This means that the operating temperature is around -50° C.

Second Question: do you know a standard, code, manual, web page or something dealing with the procedure for fabricating beams from plates?

Third Question: What type of welding electrodo would be the most appropiate?

Forth question: (and last one), what other provisions should be took?

thanks a lot.

 

[chicopee]

I knew of one heavy structural steel fabricator: National Eastern Corporation, Neal Court, Plainville ,CT. It is a subsidiary of White Oak Corporation, Main Street, Plainville.CT.
I don't know if it is still in business.

 

[MJCronin]

This question should be posted in a structural engineering forum.