34MnB5 是什么材料？化学成分是多少？有什么性能？
| 牌号 | 34MnB5 |
| 对应标准 | ISO 4954-2018 冷镦和冷挤压用钢 Steels for cold heading and cold extruding |
| 归类 | 合金钢 |
| 日本 | 国际标准组织 | 欧标 |
| JIS | ISO | EN |
| SWRCHB620 | 20MnB5 23MnB5 26MnB5 34MnB5 | 20MnB5 23MnB5 26MnB5 34MnB5 |
34MnB5汽车稳定杆
随着环保和节能的需要，高强度、轻量化已经成为世界汽车发展的潮流。越来越多车企采用新材料制造车身及部件以优化车辆性能。
近日，我公司研发生产的高端40MnB5汽车稳定杆用钢得到客户反馈，产品完全满足要求，性能达到国际同行业先进水平，填补了该钢种在国内的空白。河钢成为国内首家成功研发出高级别稳定杆用钢40MnB5的企业。
34MnB5汽车稳定杆汽车稳定杆
汽车悬挂中的一种辅助弹性元件，可防止车身在转弯时发生过大的横向侧倾，从而达到防止汽车横向倾翻和改善平顺性的目的。
34MnB5汽车稳定杆汽车稳定杆用钢，碳含量更高，在提升空心稳定杆强度的同时，便于进一步实现汽车轻量化。
我公司紧跟汽车发展趋势开发新钢种，了解到欧洲汽车稳定杆用钢正逐步由34MnB5向高精尖的40MnB5转化，而国内尚属空白，联合某知名汽车零部件企业开展34MnB5汽车稳定杆高级别稳定杆用钢40MnB5的研发。
我公司研发技术团队34MnB5汽车稳定杆克服没有国外材料做对照、技术内容封锁的不利条件，凭借在26MnB5和34MnB5汽车稳定杆用钢生产中的技术积累，摸索出40MnB5的生产工艺，历时近3个月时间，完成了40MnB5研发。产品的物理性能、表面质量、焊接性能等良好，受到客户认可。
目前，我公司26MnB5、34MnB5、40MnB5汽车稳定杆用钢已经全面投入市场，满足汽车行业不断升级的市场需求，助力车辆实现轻量化。
Boron-alloyed quenched and tempered steel
General Information
These steel grades belong according to DIN EN ISO 683-2 to the product category of quenched & tempered steels, and features outstanding forming properties in the soft delivery state and high strength after heat treatment (hardening). The materials strength is propagated by adding a small fraction of boron to the carbon, manganese and chromium composition. Currently, Salzgitter Flachstahl can supply manganese-boron Steels of 10MnB5 to 46MnB5 and customer-specific analysis variants by arrangement.
Form of delivery
This steel grade is available as hot rolled coil (pickled, unpickled) in nominal thicknesses of 2.0 to 12.70 mm and in widths according to the Salzgitter Flachstahl delivery program.
Chemical composition (melt analysis in percent by weight)
Range of chemical composition guaranteed
(differing ranges by prior Agreement)
Microstructure
These boron-alloyed quenched and tempered steel grades in hot rolled state usually have a ferritic-pearlitic microstructure with a typical grain size of > 9 according to DIN EN ISO 643.
Examples of usage
Thanks to the combination of formability and temperability, the automotive industry takes advantage of these steel grades especially for the production of supporting body parts (motor vehicles) and other safety-relevant components. Examples are the B-pillar, side impact protection, chassis components or bumpers.
Within the automotive industry, welded precision tubes made of these steel grades are, for instance, used to make stabilizers, axle driving or gearbox shaft and other parts relevant to passive security. Another application field for them is the production of boiler tubes.
PDF-Download:
37MnB5 Boron-alloyed quenched and tempered steel.pdf
30MnB5 Boron-alloyed quenched and tempered steel.pdf
40MnB5 Boron-alloyed quenched and tempered steel.pdf
34MnB5 Boron-alloyed quenched and tempered steel.pdf
22MnB5 Boron-alloyed quenched and tempered steel.pdf
26MnB5 Boron-alloyed quenched and tempered steel.pdf
