大半径弯管.doc

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1、弯管尺寸R=3D,R=4D,R=5D项目ITEM内容DESCRIPTION标准Standard按DL/T515-电站弯管-、SY5257-钢制弯管执行，或按客户提出的标准和技术要求执行。According to DL/T515(power station Bend)，SY 5257(steel Bend)，or customers techincal drawings材料Material碳钢、合金钢、不锈钢。Carbon steel, alloy steel, stainless steel弯曲半径RBend Radius RR6000mm，且R3D(用R等于3D、4D、5D、6D、7D、8D

2、、9D、10D来表示弯曲半径，D为管子外径)R3D(R=3D、4D、5D、6D、7D、8D、9D、10D) D:outside diameter弯曲角度Bend Angle 常用为15、30、45、60、90、135和180，也可按客户提出的角度弯制。Normally 15、30、45、60、90、135、180 or at customers option直段长度LLength of Straight L弯管两端直段长度一般在300mm-1500mm左右，也可按客户要求定制长度。Normally between 300mm and 1500mm in length fo straight,

3、It is at customers option直段长度LLength of Straight LD1220mm壁厚TWall Thickness TT120mm端部破口End Bevel按对焊管件焊端破口结构型式执行According to welding bevel of butt welding fitting重量Weight重量(Kg)=0.0433(D-T)TR/100000+L(两端直管段重量)Weight/kg=0.0433(D-T)TR/100000+L(Weight of Double Sides Straight Length)R=4D公称尺寸坡口处外径：D弯曲半径：R壁

4、厚：T直管段长度：LDNmmmmSchNomm5057R=20040460.3L=350805.66576R=26040573L=350807.18089R=320405.688.9L=350808100108R=400405.9114.3L=350808.8125133R=500406.3141.3L=3508010150159R=600407.1168.3L=3508011200219R=800408219.1L=7008012.5250273R=1000408.8273.1L=7008016300325R=12504010323.9L=7008017.5350377R=140040113

5、55.6L=7008020400426R=16004012.5406.4L=7008022.2450478R=18004014.2457L=7008025500529R=20004016508L=7008028600630R=24004017.48610L=7008030.96R=5D公称尺寸坡口处外径：D弯曲半径：R壁厚：T直管段长度：LDNmmmmSchNomm5057R=20040460.3L=350805.66576R=32540573L=350807.18089R=400405.688.9L=350808100108R=500405.9114.3L=350808.8125133R=6

6、25406.3141.3L=3508010150159R=750407.1168.3L=3508011200219R=1000408219.1L=7008012.5250273R=1250408.8273.1L=7008016300325R=15004010323.9L=7008017.5350377R=17504011355.6L=7008020400426R=20004012.5406.4L=7008022.2450478R=22504014.2457L=7008025500529R=25004016508L=7008028600630R=30004017.48610L=7008030.96