| 名称： | CARBON STEEL TUBESHEET | 标准： | astm a266， asme sa266 |
|---|---|---|---|
| 材料 | 碳钢 1 级，2 级，3 级，4 级 | 形状： | 直线、螺旋和杆式挡板配置 |
| 尺寸 | As Buyer’s Drawing Requirements | Production Process:: | 切削，粗加工，精加工 |
| 强光 | Thread Hole Carbon Steel Tubesheet， Heat Exchanger Parts Sa266， Gr.2n Carbon Steel Tubesheet | ||
HEAT EXCHANGER PARTS SA266 GR.2N CARBON STEEL TUBESHEET THREAD HOLE
说明
A tubesheet is usually made from a round flat piece of plate，sheet with holes drilled to accept the tubes or pipes in a accurate location and pattern relative to one another.The tube sheets are used to support and isolate tubes in heat exchangers and boilers or to support filter elements.Tubes are attached to the tube sheet by hydraulic pressure or by roller expansion.
ASTM A266 grade 2 is a type of ASTM A266 carbon steel. Cited properties are appropriate for the normalized condition. The graph bars on the material properties cards below compare ASTM A266 grade 2 to: wrought carbon or non-alloy steels (top)， all iron alloys (middle)， and the entire database (bottom).
化学成分要求
| 项目 | ASTM A266，% 的化学要求 | ||
| 一年级和二年级 | 3 年级 | 4 年级 | |
| C | ≤ 0.30 | ≤ 0.35 | ≤ 0.30 |
| 锰 | 0.40~1.05 | 0.80~1.35 | 0.80~1.35 |
| P | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| S | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| Si | 0.15~0.35 | 0.15~0.35 | 0.15~0.35 |
机械性能
| 拉伸 要求 | 1 级 | 二年级和四年级 | 3 年级 |
| T.S. min. ksi [Mpa］ | 60~85 [415~585] | 70~95 [485~655] | 75~100 [515~690] |
| Y.S min. ksi [Mpa］ | 30 [205] | 36 [250] | 37.5 [260] |
| EL. 2 英寸或 [62.5毫米] 最低% | 23 [21] | 20 [18] | 19 [17] |
| R.o.A 最低% | 38 | 33 | 30 |
申请：
热交换器
锅炉
压力容器
蒸汽轮机
空调
