2Cr13 (new number for 20Cr13) Standard: GB / T 1220-2007 Features and Scope: quenched state high hardness, good corrosion resistance. Used as a turbine blade. 2Cr13 density of 7.75g / cm3 2Cr13 quenching hardness: 2Cr13 quenching temperature is generally in the 980 ~ 1050 ℃, take 980 ℃ heating oil quenched hardness to be significantly lower than 1050 ℃ heating oil quenching, after 980 ℃ oil quenching hardness is 45 ~ 50HRC After 1050 ℃ oil quenching hardness higher 2HRC. But the organization coarse grains obtained after quenching at 1050 ℃, brittleness. 1000 ℃ is recommended Hardening can get a better organization and hardness. 2cr13 picture 2Cr13 martensitic stainless steel, welded to be preheated. And Q235 welded austenitic stainless steel welding without preheating, such A302.A307 do. Controlling the dilution rate of welding seam, the welding does not swing, using a smaller current. 2Cr13 welding consumables can be used: 1. Anti atmospheric corrosion election G202, G207, require preheating 150-300 degrees, post-weld tempering 700-730 degrees; 2. Resistance to acids and heat election: G211, be preheated 150 -300 degrees; 3. Good plasticity: A102, A107, A202, A207, A302, A307, welding preheating, thick bulky warm up. 2 Edit this paragraph chemical composition of carbon C: 0.16 ~ 0.252cr13 stainless steel silicon Si: ≤1.00 Mn Mn: ≤1.00 sulfur S: ≤0.030 Phosphorus P: ≤0.035 Chromium Cr: 12.00 ~ 14.00 Ni: to allow contains ≤0.60