其成分特征是碳含量在共析点左右的高碳低锰钢轨钢。
The main characteristics of the rail steel are low manganese and high carbon which content is being closed to eutectoid.
图8表明，在形成缝隙后，不同含氮量的SUS316 L低锰钢其隙间腐蚀率与含氮量之间的关系。
Fig. 8 shows the relationship between crevice corrosion rate and nitrogen content for a low Mn steel, SUS316L, with diverse nitrogen content after forming crevices.
锰是十分有用的金属，如果在钢中加入2.5—3.5%的锰，那么所制得的低锰钢简直脆得象玻璃一样，一敲就碎。
Manganese metal is very useful, if in steel join 2.5-3.5% of manganese, then water-heating low manganese steel simply brittle like glass, as a knock is broken.
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