08#钢材料定扎交货保证性能和质量联系舞阳钢铁郑州销售办事处

1. # 08 Name: high steel;: GB/T

2. 08 and : 08 is into sheet or steel strip for parts and with easy and and low deep or deep .High and good but low .

3. of # 08: heat or heat ( or high ).The in the of heat shall be in the . If it is not the shall be made heat .

4. No. 08 Heat : 930℃ air ; : + very .

5. No. 08 :

C : 0.05-0.12;Si :0.17-0.37;Mn :0.35-0.65;S ≤0.035;

P ≤0.035;Cr ≤0.10;Ni ≤0.25;Cu ≤0.25;

6. of # 08:

B (MPa)≥325(33);Yield s(MPa)≥195(20)

5(%)≥33; of area bits (%) of 60 or more; not heat ≤131HB

Scope:

08# This steel is made by open - or pure with .The steel is easy to for high flame and other .The of this steel (mass %) ≥0.4, good wear but the is is easy to and so is very and it must be after to avoid the of .The steel is to cut, it needs to be to the in to of 19~ in order to .

08# is a very soft steel with very low and but high and . It has good cold and such as deep and . it has aging and low .Used for low steel wire, pipe, pull rod, hook, etc.

1、08#材料称谓：优质碳素结构钢；商标：08 规范：GB/T 、08#特性及适用规划：08大多轧制成高精度的薄板或冷轧钢带用以制造易加工成形，强度低的深冲压或深拉延的掩盖零件和焊接构件。具有较高的塑性、耐性和焊接功用，出色的压力加工功用，但强度低。3、08#交货情况：以不热处理或热处理（退火、正火或高温回火）情况交货。要求热处理情况交货的应在合同中注明，未注明者按不热处理交货。4、08#热处理规范：正火930℃空冷；金相组织：铁素体+极少量珠光体。5、08#化学元素：C含量：0.05-0.12；Si含量:0.17-0.37；Mn含量:0.35-0.65；S含量≤0.035；P含量≤0.035；Cr含量≤0.10；Ni含量≤0.25；Cu含量≤0.25；6、08#力学功用：抗拉强度σb (MPa)≥325(33)；屈服强度σs(MPa)≥195(20)伸长率δ5(％)≥33；断面缩短率ψ(％)≥60；硬度未热处理≤、08#运用规划：08#该钢是由电炉、平炉或纯氧转炉炼钢法制造的全静钢，具有加工性优异、金相组织均匀的特征。该钢价格便宜，加工简略，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，耐磨性优异，但延展性减少，淬火易变形和开裂，故淬火极为重要，且回火后有必要急冷，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功用，原则上回火到硬度19~22HRC，以利于机械加工。08#为极软的碳素钢，强度、硬度很低，而耐性和塑性极高，具有出色的深冲、拉延、弯曲和镦粗等冷加工功用、焊接功用。但存在时效敏感性，淬硬性及淬透性极低。用于制造地脚螺栓、犁铧、烟筒、屋面板、铆钉、低碳钢丝、薄板、焊管、拉杆、吊钩、支架、焊接结构等。