Properties of A36 Steel at -40¦C Ambient
Properties of A36 Steel at -40¦C Ambient
(OP)
Hi all,
Could anyone provide me with some insight about how A36 structural steel would behave at -40°C ambient?
To provide some background, our goal is to lift a piece of machinery weighing 5 tons using three strategically placed lifting lugs. So my main concern is, if we were to have these lugs fabricated from A36 steel, would the strength of the steel be compromised at all at such a low temperature? And if so, could you provide any suggestions of what material the lugs should be machined from?
Could anyone provide me with some insight about how A36 structural steel would behave at -40°C ambient?
To provide some background, our goal is to lift a piece of machinery weighing 5 tons using three strategically placed lifting lugs. So my main concern is, if we were to have these lugs fabricated from A36 steel, would the strength of the steel be compromised at all at such a low temperature? And if so, could you provide any suggestions of what material the lugs should be machined from?





RE: Properties of A36 Steel at -40¦C Ambient
It's not an issue of strength, but of toughness/ductility.
Try a steel that has been normalized...
RE: Properties of A36 Steel at -40¦C Ambient
A simpler solution would be to use a low temperature carbon steel such as A516 Gr 60N (if plate material) or austenitic stainless steel such as 304.
RE: Properties of A36 Steel at -40¦C Ambient
RE: Properties of A36 Steel at -40¦C Ambient
No good guess at all about what the actual final material properties are unless he stress relieves the lug and vessel very, very carefully after all welding.