产品介绍 空心镀铬棒-空心活塞杆锘?/p> ◆ 必胜锘碷更高的屈服强度，具有良好的可焊性。 ● 机械性能容易，低温耐冲击性能优于一般管材。 ● 内部精密研磨，外部精密研磨后镀硬铬，公差符合国际标准。 1.商品：伸缩缸空心活塞杆 2.可用钢材： SAE/AISI1020, 1026, 1518,1045,4130,4140,4145,4340, ENE355,C45E,25CrMo4,42CrMo4,CK45,S45C DINST52 3.机加工车削：按图纸。 4、镀硬铬：厚度和硬度按要求。 5. 直径公差：ISO f7。 6、表面粗糙度：Ra0.25um max或Ra0.4um max由需方选择。 7.标准出口包装：胶合板箱 8. Customized packing or marking are available upon request. 9. Diameter: 6mm - 1000mm 10. Length: 1000mm - 8000mm 11. Tensile strength: Not less than 610 N/MM2 12. Yield strength: Not less than 355 N/MM2 Product Process Cold drawn---blanking---straightening---coarse grinding---heat treatment---straightening---CNC blank---finishing---half coarse grinding---half fine grinding---fine grinding---fine polishing---plating---fine grinding---fine polishing---full inspection Chrome Hollow Bar Size List: all dimensions are by metric ID脳ODID脳ODID脳ODID脳ODID脳ODID脳ODID脳ODID脳ODID脳OD 20脳3030脳4035脳4138脳5040脳5050脳6050脳7060脳7060脳80 63脳7565脳8070脳8070脳8580脳9580脳10085脳100100脳115100脳120 100脳125110脳125125脳140125脳150140脳160150脳170150脳180160脳180160脳190 180脳200200脳230250脳290 鈽匫ther Specification and requirement can be customers make. Detailed Description 1.CHEMICAL COMPOSITION MaterialC%Mn%Si%S%P%V%Cr% Ck450.42-0.500.50-0.800.040.0350.035-- ST520.221.60.550.0350.04-- 20MnV60.16-0.221.30-1.700.10-0.500.0350.0350.10-0.20- 42CrMo40.38-0.450.60-0.900.15-0.400.030.03-0.90-1.20 40Cr0.37-0.450.50-0.800.17-0.37---0.80-1.10 2.MECHANCIAL PROPERTIES MaterialT.S N/MM2Y.S N/MM2E%(MIN)CHARPYCONDITION CK4561035515>41JNORMALIZE CK4580063020>41JQ + T ST5250035522-NORMALIZE 20MnV675059012>40JNORMALIZE 42CrMo498085014>47JQ + T 40Cr100080010-Q + T Our Advantages 1. Advanced production equipment: cold drawing machine, honing machine, skiving & roller burnishing machine, straightening machine, polishing machine, heat treatment furnace, grinding machine, etc. We have professional technicians do regular scheduled maintenance on these machines to guarantee them work well. 2.优质原材料：我们的原材料主要来自一些著名的钢厂，如TPCO、BAO STEEL、SHA STEEL，它们是中国最好和最大的原材料制造商。 3. 严格的质量控制: 我们有专业的内部 QC 来检查所有产品。我们将在交货前进行化学成分测试、机械性能测试、尺寸检查、粗糙度测试、镀铬层测试和其他需要的测试。 4. 最好的售后服务：每个订单从生产到交货都会及时跟进。中国空心镀铬棒 网站：http://www.cylinderbarrel.com/hydraulic-cylinder-rod/hollow-chrome-plated-bar/
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