求翻译：40Cr钢属于亚共析钢，缓冷后的室温组织为铁素体+珠光体组织；40Cr钢属于低淬透性调质钢，具有很高的强度，良好的塑性和韧性，具有良好的综合机械性能；40Cr钢可用于制造汽车的连杆、螺栓、传动轴及机床的主轴等零件。本文根据铁碳相图制定40Cr钢正火、退火、淬火、回火热处理工艺参数，测定各种热处理情况下40Cr试样的硬度、进行材料金相组织分析，得出了40Cr钢调质处理具有良好的综合性能的结论是什么意思？

40Cr steel is sub-eutectoid steel, slow cooling at room temperature after the organization of ferrite pearlite; 40Cr steels with low hardenability are quenched and tempered steel, high strength, good ductility and toughness, has a good overall mechanical properties; 40Cr steel rod can be used to man

A total 40 Cr steel belonging to the analysis of cold steel, slowed down to room temperature austenitic + Pearl Cr sports organizations; 40 quenched steel is in the low-quality of steel, and are of a very high strength, excellent plasticity and toughness, to have a good integrated mechanical propert

The 40Cr steel belongs to the hypo-eutectoid steel, slow Leng Hou room temperature organization

40Cr steel part of hypoeutectoid, after slow cooling of room temperature ferritic + pearlitic organizations; 40Cr steel belong to low-hardenability and tempering steel, has a high strength, good plasticity and toughness, with nice synthetic mechanical property; 40Cr steel con-rod, that can be used i