Technical Support

Technical Support Request Form * Full Name Company * Email * Phone Subject Technical Support Request Other Request *Your Request *Enter Code Seen Below…

Frequently Asked Questions

…digit code cast on all SIGMA fittings to trace the material used to fabricate each fitting. The heat code provides the foundry code, year, month, date, furnace and ladle number….

What is H20 loading for castings?

Based on guidelines provided by the AASHTO (American Association of Highway Transportation Officials), the designation H followed by a number indicates the type of load (e.g. the weight of a…

What is the heat code and what does it represent?

…digit code cast on all SIGMA fittings to trace the material used to fabricate each fitting. The heat code provides the foundry code, year, month, date, furnace and ladle number….

Largest Tournament Yet!

…in supporting this event” My family and I will be forever grateful. If you are interested in supporting The Jimmy Fund at Dana Farber, please visit http://www.jimmyfund.org or email lrybacki@sigmaco.com….