石油裂化管 GB9948

石油裂化管 GB9948 石油裂化管 GB9948-1988(热轧) construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure 尺寸公差 尺寸 允许偏差 ?159 ?1.00% 外径 >159 ?1.25% GB9948-1988 ?20 ?12.5% 壁厚 >20 ?10.0% 标准 纵向力学性能 交货状态 屈服强度(MPa) 延伸率(%) 冲击(J) 布氏硬度 钢号 抗拉强度(MPa) 不小于 不大于 10 330-490 205 24 - - 热轧态 GB9948-1988 20 410-50 245 21 39 - 12CrMo 410-560 205 21 55 156 回火处理 15CrMo 440-640 235 21 47 170 1Cr2Mo ?(390) (175) (22) (79) (79) 回火处理 construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure 化学成份 钢号 C Mn Si Cr Mo Ni S P 10 0.07-0.14 0.35-0.650.17 -0.37 ?0.15 - ?0.25 ?0.035 ?0.035 20 0.17-0.24 0.35-0.65 0.17-0.37 ?0.25 - ?0.25 ?0.035 ?0.035 12CrMo 0.08-0.15 0.40-0.700.17 -0.37 0.40-0.70 0.40-0.55 ?0.30 ?0.035 ?0.035 15CrMo 0.12-0.18 0.40-0.70 0.17-0.37 0.80-1.10 0.40-0.55 ?0.30 ?0.035 ?0.035 1Cr2Mo ?0.15 0.30-0.60 0.50-1.00 2.15-2.85 0.45-0.65 ?0.30 ?0.035 ?0.030 construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure GB/T8163-1999(热轧、挤压、扩管) 尺寸公差 标准 外径公差 壁厚公差 D<50mm ?0.50mm 最小:+0.45mm GB/T8163-1999 +15/-12.5% D?50mm ?1% 最小:-0.40mm 纵向力学性能 屈服强度(MPa) ? 标准 牌号 抗拉强度(MPa) 延伸率(%)? ?16 >16mm 10 335-475 205 195 24 20 410-550 245 235 20 GB/T8163-1999 Q295 430-610 295 285 22 Q345 490-665 325 315 21 化学成份 标准 牌号 C Si Mn P? S? Ni? Cu? Cr? 10 0.07-0.14 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.15 0.25 20 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.25 0.25 GB/T8163-1999 Q295 A ?0.16 ?0.55 0.80-1.50 0.045 0.045 0.30 0.30 0.30 Q295 B ?0.16 ?0.55 0.80-1.50 0.040 0.040 0.30 0.30 0.30 Q345 A ?0.20 ?0.55 1.00-1.60 0.045 0.045 0.30 0.30 0.30 construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure Q345 B ?0.20 ?0.55 1.00-1.60 0.040 0.040 0.30 0.30 0.30 Q345 C ?0.20 ?0.55 1.00-1.60 0.035 0.035 0.30 0.30 0.30 Q345 D ?0.18 ?0.55 1.00-1.60 0.030 0.030 0.30 0.30 0.30 Q345 E ?0.18 ?0.55 1.00-1.60 0.025 0.025 0.30 0.30 0.30 Q/CG46.1-1996 (仅限热扩管) construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure 标 准 Q/CG46.1-1996 用 途 适用于输送流体用一般无缝钢管等 钢种、标准 10、20、35、45、16Mn、合金结构钢等，成分按GB699-88、GB/T1591-94 尺寸偏差 热扩管 D>351 外径?1% 壁厚?18% 流 弯曲度 ?3mm/m 体 σb σs (N/mm2) 钢 种 δs% S<15 S>16 - 40 力 学 用 N/mm2 20 410-540 ?255 ?245 ?21 性 能 管 45 ?590 ?335 ?325 ?14 16Mn ?490 ?325 ?315 ?21 水压试验 逐根进行、最大压力?8MPa 供方可用涡流或超声检验代水压试验 压扁试验 D>315、且S?10时，进行压扁试验。10钢的α=0.09,20、35、45、低合金、合金钢的α=0.07 其它项目 备 注 该标准还包括35Cr、40Cr、12CrMo、35CrMo、12Cr1MoV、30CrMnSi等合金结构钢，性能为调质后性能。 construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure construction budget and feedback to departments, for inclusion in the settlement, to avoid losses, in order to better control costs. 7, strengthen construction equipment management, eliminate man-made damage, improve the utilization of machines, to shorten the duration. 8, actively carry out QC group activities to improve efficiency and ensure quality. Third, labour resources, machinery and equipment, materials, adequate supply of labor resources: give full play to the company's resources, early labor organizations, and concerned about labor, imposed on the project earmarked to protect the interests of migrant workers, not workers ' wages in arrears. Machines and equipment: using a combination of to buy or rent, rental advanced equipment, to ensure normal progress of the duration. Purchase advanced equipment, to provide work. Ensuring construction quality and schedule. Materials: supplier purchases contracts in advance, and study visits to the providers, ensure the quality of supplied materials, bid can quickly supply organizations, to ensure the project quality. 13th chapter, and the owner, general contractor, supervision and design of supporting measures, and owner of fit 1, meet the requirements of construction on contract duration and quality management, take corresponding measures in construction procedure