Steel test coupon for GM 9540P accelerated corrosion test

GM9540P Steel Corrosion Coupons

Steel corrosion coupons used in GM9540P (Accelerated Corrosion Test). These corrosion coupons are made from AISI 1006-1010 steel, and are 1" x 2" (25.4 mm  x 50.8 mm). The test method allows several different coupon thicknesses, depending on the test duration. The four recommended thicknesses are 1/32" (0.032"), 1/16" (0.062"), 1/8" (0.125"), and 1/4" (0.250"). Each coupon has a mounting hole to fit a corrosion coupon mounting rack, and is stamped with an identifying serial number.