| 标准： | astm a266， asme sa266 | 材料等级： | Gr.1， Gr.2， Gr.3， Gr.4 |
|---|---|---|---|
| 类型 | 碳钢管板 | 外径尺寸： | 1/2′ – 48′ |
| 厚度 | SCH 10-SCH XXS | 技术： | 锻造 |
| 表面： | 酸洗，退火，抛光，光亮退火 | 应用： | 热交换器，锅炉，石油，冷凝器，等等。 |
ASME SA266 Gr.2N FK Carbon Steel Tubesheet， Channel Cover Flange For Heat Exchanger
ASTM A266 / ASME SA266 Gr.1/Gr.2/Gr.3/Gr.4 is a specification of carbon steel forgings， like tubesheets， channel flanges for for pressure vessel components. TONG CHUANG GROUP has supplied these carbon steel tubesheets and flanges for many yesrs with high quality， which are widely used in industries like oil & gas plants， offshore oil drilling， chemical industry， etc..
The tubesheet is one of the key components in a shell & tube heat exchanger.Depending on the tube bundle configuration， a heat exchanger can be equipped with one or two tubesheets.These tubesheets are usually made of low carbon steel material， with a varying thickness based on the fluid pressure. In view of the final applications (like petrochemical， nuclear， oil & gas， etc.)， the tubesheet can be cladded with stainless steel or other super alloys or even be entirely made out stainless steel or superalloys.
Material Standard:
| 美国材料试验协会 A266 / 美国机械工程师学会 SA266 | ||||
| 材料等级 | 1 级 | 二级 | Grade 3 | Grade 4 |
规格
| 规格 | 美国材料试验协会 A266 / 美国机械工程师学会 SA266 |
| 等级 | 二级 |
| Schedule Chart | SCH 5S To XXS. |
| Supporting Material | Gasket/ Ring Joint/ Flange Bolts |
| Production Technique | Forged/ Heat treated and machined |
| Forging Methods | Forging & Casting， Rolling & Cutting |
| 制造商 | Forged/ Threaded/ Screwed / Plate |
| Face Type | RTJ/ RF/ FF |
化学成分
| 碳 (C) | 0.30 最大值 |
| 锰 (Mn) | 0.40~1.05 |
| 磷 (P) | 最大 0.025 |
| Sulfur (S) | 最大 0.025 |
| 硅 (Si) | 0.15~0.35 |
机械性能
| 拉伸强度（兆帕） | 485~655 |
| Yield Strength (MPa) | 250 min |
| 伸长率 (%) | 18 min |
| Reduction Area (%) | 33 min |
应用：
天然气加工厂
Oil Drilling Plants
热交换器和锅炉
化工设备
石油化工厂
冷凝器
Shipbuilding Equipments
