一、50#钢板归于优质碳素结构钢板，履行规范GB/和Q/二、50#钢板履行规范及交货状况50#钢板交货状况为正火、退火、高温回火，经 供需双方协议，50#钢板也能够热轧状况交货。三、50#钢板化学成分：质置分数％ (熔炼剖析）/.17-0.370.03188.8.131.52-0.550.50-0.800.0200.25厚度抗拉强度不小于16热轧141.热处理指正火、退火或高温回火; 2.当50#钢板以热处理状况交货时，当其伸长率较上表规则进步2% (肯定 值）时，厚度在的50#钢板答应抗拉强度比上表规则下降40MPa， 厚度>的50#钢板抗拉强度答应下降20MPa;3.经供需双方协议，50#钢板也能够以热轧状况交货，以热处理样坯铡定 力学性能，样坯尺度为a*3a*3a，a为钢板厚度。
1. No. 50 steel plate to steel and the GB/ and Q/ shall be
Ii. and of no.50 steel plate
The of no. 50 steel plate is and at high . to the of both no. 50 steel plate can also be in hot .
Iii. 50# steel Plate : % ( )
The of the
1. The of Cr, Ni and Cu in no. 50 steel in the above table is not if the can the ;
2. The error of the steel plate to the rules of GB/T222.
Iv. of no.50 steel plate
The of the
at break A/%
Not less than
1. Heat to or at high ;
2. When no. 50 steel plate is in heat when its is by 2% ( value) with the above table no. 50 steel plate with a of shall be to its by 40MPa with a of & GT;The of 50# steel plate of is to by 20MPa;
3. to the of the and no. 50 steel plate can also be in with the of the heat green the size of the green is A * 3A * 3A, and a is the of the steel plate.
V. Use of # 50 steel plate
No. 50 steel plate is used for parts with high wear and low load and such as gear, pull rod, roll, shaft rub heavy load and etc.