钢管管件知识

化 肥设备用高压管GB6479-1986(热扎）http://www.tubeschina.com/knowledgecentre/standards15.htm
GB/T5312-1999(热扎、挤压、扩管）http://www.tubeschina.com/knowledgecentre/standards12.htm
GB3087-1999 GB5310-1995(热扎、挤压、扩管）http://www.tubeschina.com/knowledgecentre/standards12.htm
GB/T8162-1999（热扎、挤压、扩管）  http://www.tubeschina.com/knowledgecentre/standards12.htm
GB/T8163-1999(热扎、挤压、扩管） http://www.tubeschina.com/knowledgecentre/standards19.htm
常用弯头理论重量表http://www.tubeschina.com/knowledgecentre/images/200611751551706.jpg
地质钻探用管YB 235 http://www.tubeschina.com/knowledgecentre/standards20.htm
ASTM标准http://www.tubeschina.com/knowledgecentre/standards13.htm
中外阀门标准对照 http://www.tubeschina.com/knowledgecentre/standards22.htm
DIN德国钢管标准 http://www.tubeschina.com/knowledgecentre/standards24.htm
GB系列标准  http://www.tubeschina.com/knowledgecentre/standards25.htm
管线管API SPEC 5L http://www.tubeschina.com/knowledgecentre/standards14.htm
钻杆API SPEC 5D、API SPEC 7 http://www.tubeschina.com/knowledgecentre/standards16.htm
国内标准生产的无缝钢管品种、国内常用钢号（钢级）及相应品种的国外标准 http://www.tubeschina.com/knowledgecentre/standards6.htm
ASTM A312标准介绍 http://www.tubeschina.com/knowledgecentre/standards39.htm
世界各国不锈钢标准钢号对照表（新版）http://www.tubeschina.com/knowledgecentre/1.htm
钢管金属材料牌号对照 http://www.tubeschina.com/knowledgecentre/2.htm
Q235B 16Mn L245 L290 Q345钢管的力学性能和化学成分 http://www.tubeschina.com/knowledgecentre/standards3.htm
管线管牌号对照 L245 L290 L450 http://www.tubeschina.com/knowledgecentre/standards10.htm
Q/BQB 250-2003氧气瓶用无缝钢管 http://www.tubeschina.com/knowledgecentre/standards11.htm
刚才材质化学成分对照表 http://www.tubeschina.com/knowledgecentre/standards23.htm
世界钢号对照1（碳素结构钢）http://www.tubeschina.com/knowledgecentre/standards27.htm
世界钢号对照4（合金结构钢）http://www.tubeschina.com/knowledgecentre/standards30.htm
世界钢号对照2（优质碳素结构钢）http://www.tubeschina.com/knowledgecentre/standards28.htm
世界钢号对照3（碳素工具钢）http://www.tubeschina.com/knowledgecentre/standards29.htm
世界钢号对照5（淬透性合金结构钢）http://www.tubeschina.com/knowledgecentre/standards31.htm
世界钢号对照6（弹簧钢）http://www.tubeschina.com/knowledgecentre/standards32.htm
世界钢号对照7（滚动轴承钢）http://www.tubeschina.com/knowledgecentre/standards33.htm
世界钢号对照8（高速工具钢）http://www.tubeschina.com/knowledgecentre/standards34.htm
世界钢号对照9（不锈耐酸钢）http://www.tubeschina.com/knowledgecentre/standards35.htm
世界钢号对照10（耐热钢）http://www.tubeschina.com/knowledgecentre/standards36.htm
世界钢号对照11（易切结构钢）http://www.tubeschina.com/knowledgecentre/standards37.htm
世界钢号对照12（合金工具钢）http://www.tubeschina.com/knowledgecentre/standards38.htm
无缝管标准一览表 http://www.tubeschina.com/knowledgecentre/images/wfgg.gif
刚才理论质量计算公式：http://www.tubeschina.com/knowledgecentre/standards41.htm
常用无缝钢管理论重量表 http://www.powerproduct.com/handbook/jscl4.asp