4、55钢参考对应钢号：55钢碳钢材质保性能，定期货周期保证就直接联系舞阳钢铁郑州销售部
中国GB 55；俄罗斯ГОСТ 55；美国ASTM 1055，UNS ；英国BS 1C55//；法国NF 1C55/XC55//CC55；德国DIN 1C55/CK55/CM55；日本JIS S55C/S58C；国际ISO C55E4/Type SC/Type DC。5、55钢交货状态：以不热处理或热处理（退火、正火或高温回火）状态交货。要求热处理状态交货的应在合同中注明，未注明者按不热处理交货。6、55钢化学成分：.52～0.600.17～0.370.50～0.80≤0.035≤0.035≤0.25≤0.30≤0.257、55钢力学性能：抗拉强度σb/Mpa屈服强度伸长率断面收缩率硬度≥645(66)≥380(39)≥13≥35未热处理,≤255HB;退火钢,≤、55钢热处理规范：正火,820℃;淬火,820℃;回火,600℃。金相组织：索氏体。该钢是由电炉、平炉或纯氧转炉炼钢法制造的全静钢，具有加工性优良、金相组织均匀的特点。该钢价格便宜，加工容易，适合于高频淬火、火焰淬火等表面硬化处理。该钢含碳量（质量分数，%）≥0.4，耐磨性优良，但延展性减少，淬火易变形和开裂，故淬火极为重要，且回火后必须急冷，以避免发生回火脆性。该钢切削困难，需进行球化处理改善切削性能，原则上回火到硬度19~22HRC，以利于机械加工。9、55钢特性及适用范围:55钢碳钢材质保性能，定期货周期保证就直接联系舞阳钢铁郑州销售部
55钢为高强度中碳钢，经处理后有高的表面硬度和强度，但塑性、韧性较差，切削加工性能中等，焊接性、淬透性差，水淬具有形成裂纹的倾向。55钢一般在正火或淬火后使用，用作要求较高的强度和耐磨性或弹性、动载荷及冲击负荷不大的零件，如齿轮、轮缘、扁弹簧、曲轴等，也可作铸件。轴类零件的功用、结构特点及技术要求。轴类零件是机器中经常遇到的典型零件之一。它主要用来支承传动零。
1. The of 55 steel is 0.55%. steel is used for heat and 55 steel has large and after (HRC63).
2, 55# steel is high after high and but poor poor water has the to a crack.
3. 55 Steel : GB/ .
4. Refer to the steel of 55 steel:
China GB 55; Г О С Т 55;ASTM 1055, UNS ;UK BS 1C55//;NF 1C55/XC55//CC55;DIN 1C55/CK55/CM55;Japan JIS S55C/S58C;World ISO C55E4/Type SC/Type DC.
5. of 55 steel: no heat or heat ( or high ).The for under heat shall be in the ; shall be made heat .
6. 55 of steel:
C
Si
Mn
S
P
Cr
Ni
Cu
0.52 ~ 0.60
0.17 ~ 0.37
0.50 ~ 0.80
0.035 or less
0.035 or less
0.25 or less
0.30 or less
0.25 or less
7. 55 of steel:
B /Mpa
Yield
Rate of
P 645 (66).
P 380 (39)
13 or
P 35
No heat ≤255HB; 217 hb or less
8. Heat of 55 steel: ℃; 820 ℃; 600 ℃. : .
The steel is made by open - or pure which has the of and .The steel is easy to for high flame and other .The of this steel (mass %) ≥0.4, wear but the is is easy to and so is very and it is to cool after to the of .The steel is to cut, it needs to be to the . In it is to of 19~22HRC to .
9. 55 Steel and scope:
55 steel for high after of high and but poor is poor water has the to a crack.55 steel is used after or used for parts high and wear or small load and load, such as gear, flat etc., but also can be used as .The and skill of shaft parts.The shaft part is one of the parts in the .It is used to the zero.