AASHTO M 285M/M 285-03

This specification covers iron-chromium-nickel alloy, stainless steel castings intended for particularly severe corrosive applications.

For general corrosion-resistant alloy castings, reference should be made to AASHTO M 163M/M 163. For general heat-resistant alloy castings, reference should be made to ASTM A297/A297M. For nickel-base alloy castings, refer to ASTM A494/A494M.

This specification requires postweld heat-treatment of all weld repairs affecting surfaces intended to be wetted by the corrosive medium. For applications for which postweld heat treatment is not considered mandatory for retention of acceptable corrosion resistance, refer to AASHTO M 163M/M 163.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. SI units are applicable for material ordered to M 285M and inch-pound units for material ordered to M 285.