1.1 ,This test method covers procedures for conducting the small punch deformation test for metallic materials. The results can be used to derive estimates of yield and tensile strength up to 450 °,C, and estimates of the ductile-to-brittle transition temperature from the results of small punch bulge tests in the temperature range from -193 °,C to 350 °,C for iron based materials or 0.4 T_m for other metallic materials, where T_m is their melting temperature in K.