我厂主产品是前进型蒸汽机车,所用铸钢件均由本厂生产。为适应四轴煤水车改为六轴煤水车的需要,我们采用了ZG16Mn低合金高强度铸钢。其化学成分(％)为:C 0.12～0.20,Mn 1.20～1.60,Si 0.20～0.60 P≤0.050,S≤0.050。机械性能:σ_b≥48公斤力/毫米~2,σ_5≥28公斤力/毫米~2,δ_s≥20％,α_κ≥6公斤力·米/厘米~2。我厂试制和生产16Mn铸钢件已有十七年历史,先后铸造了六轴煤水车转向架、前 Our main products are forward steam locomotive, steel castings used by the factory production. In order to meet the needs of four-axis coal-water tankers to six-axis coal-water tankers, we have adopted ZG16Mn low-alloy high-strength cast steel. Its chemical composition (%) is: C 0.12 ~ 0.20, Mn 1.20 ~ 1.60, Si 0.20 ~ 0.60 P≤0.050, S≤0.050. Mechanical properties: σ_b ≥ 48 kg / mm ~ 2, σ_5 ≥ 28 kg / mm ~ 2, δ_s ≥ 20%, α_κ ≥ 6 kg · m / cm ~ 2. I plant trial production and production of 16Mn steel castings have been seventeen years of history, has cast a six-axis coal truck bogie, before