Low Temperature Structural Steels
Low Temperature Structural Steels
(OP)
Hello,
I am currently working on a project and I am having difficulty finding structural steel to be used on the job. The final location for the heater is in Siberia and the customer has asked that we use low temp carbon steel and that all steel be rated for -56degreesF. Currently we are purchasing structural shapes of A572 GR50 and having them heat treated and some of the steel is still failing our Charpy Impact Test requirements. We cannot afford to keep purchasing material and simply hoping that it passes. I have found other grades such as A203, A537, A533 that would seem to work fine but I cannot find a steel distributor in the U.S. that has structural shapes of these grades. I am currently looking into A588 as I was told it is very similar to A572 but has a better history of passing impact test and is readily available. If anyone could please offer any insight or alternative material it would be greatly appreciated. Thank you! - Dakers
I am currently working on a project and I am having difficulty finding structural steel to be used on the job. The final location for the heater is in Siberia and the customer has asked that we use low temp carbon steel and that all steel be rated for -56degreesF. Currently we are purchasing structural shapes of A572 GR50 and having them heat treated and some of the steel is still failing our Charpy Impact Test requirements. We cannot afford to keep purchasing material and simply hoping that it passes. I have found other grades such as A203, A537, A533 that would seem to work fine but I cannot find a steel distributor in the U.S. that has structural shapes of these grades. I am currently looking into A588 as I was told it is very similar to A572 but has a better history of passing impact test and is readily available. If anyone could please offer any insight or alternative material it would be greatly appreciated. Thank you! - Dakers





RE: Low Temperature Structural Steels
RE: Low Temperature Structural Steels
Best regards - Al
RE: Low Temperature Structural Steels
Not sure whether you can source European standards but there are some that will meet the temperature requirement, you don't mention the energy figure.
http://www.macsteel.co.za/files/en_10025_-_2004.pd...
RE: Low Temperature Structural Steels
gtaw - I will look into the A709 to see if it meets our requirements.
desertfox - I don't see the problem with sourcing European standards, the customer did not specify against it. Please see one of our energy requirements above and let my know what you think. I will research it as well.
Thank you all and I apologize if I am vague or unclear in any way as it is my first post.
-Dakers
RE: Low Temperature Structural Steels
see page 7 table 2, impact energy 27J=19.86 ft-lbs , spec S355 NL
RE: Low Temperature Structural Steels
Thank you! -Dakers
RE: Low Temperature Structural Steels
Thanks again! -Dakers
RE: Low Temperature Structural Steels
I think it might only be in plate form however look on this link
http://www.tatasteeleurope.com/en/products-and-ser...
RE: Low Temperature Structural Steels
RE: Low Temperature Structural Steels
Thank you! -Dakers
RE: Low Temperature Structural Steels
RE: Low Temperature Structural Steels
Thank you! -Dakers
RE: Low Temperature Structural Steels
RE: Low Temperature Structural Steels
http://www.centralsteel.com/index.php?option=com_c...
http://www.atlastube.com/astm-a1085
RE: Low Temperature Structural Steels
The A709 was untreated as their metallurgist said heat treating this particular grade would not help our cause but in the end it failed to meet our requirements of 15ft-lbs.
The A588 was normalized at 1700F for approximately 20 minutes before the charpy testing at -56F. These samples performed excellently showing averages of 45ft-lbs up to 142ft-lbs on some of the heavier shapes.
Again, just wanted to share our results in case anyone comes across something like this in the future. Thank you again for all your help and suggestions!
-Dakers