GS2738 (2738H) Product Description: Sa Site GS2738 chemical composition% C Si Mn PS Cr Mo Ni 0.35-0.46 0.2-0.4 1.3-1.6 ≦ 0.035 ≦ 0.005 1.8-2.2 0.15-0.25 0.9-1.2 1. Key Features: * Material uniform hardness excellent throw optical performance * * * good machining performance * Pre-hardened plastic mold steel can be subjected to nitriding * suitable surface treatment, such as: plating Cr 2. GS2738 main applications: in a large plastic mold, mold rack. such as car bumpers, TV shell, etc. Suitable for high degree of mold, such as finishing production PS (PS) and non-quenching super-glue (ABS), etc. 3. Features: excellent processing performance, power polishing and cutting loss. 4 Physical properties of thermal expansion coefficient [10-6 m / (mxk)] 20-100 ℃ 20-200 ℃ 20-300 ℃ 20-400 ℃ 20-500 ℃ 20-600 ℃ 20-700 ℃ 11.1 12.9 13.4 13.8 14.2 14.6 14.9 Thermal conductivity [w / (mxk)] 20 ℃ 350 ℃ 700 ℃ --- 35.7 33.2 31.9 ---