| 规格 | astm b729， asme sb729 | 年级 | N08020 |
|---|---|---|---|
| 类型 | 无缝 | 表面： | 酸洗退火，抛光，光亮退火 |
| 非破坏性测试： | 涡流测试 -ASTM E426，静态测试 -ASTM A999，超声波测试 -ASTM E213 | 尺寸标准： | ASTM B16.10& B16.19 & Customized |
| 强光 | HT Seamless Alloy Steel Pipe， Bright Alloy， NO8020 Nickel Alloy Tube | ||
Nickel Alloy ASTM B729 N08020 Alloy20 For Petrochemical
What material is N08020?
Alloy 20 (UNS N08020) is an austenitic， nickel-iron-chromium based superalloy with additions of Copper and Molybdenum which provide resistance to hostile environments， pitting， and crevice corrosion. It is also stabilized with Columbium to minimize carbide precipitation during welding.
TONG CHUANG Group has been operating stainless steel/duplex/nickel seamless steel pipe for more than 30 years， and has been exporting more than 80，000 tons of stainless steel/duplex/nickel seamless steel pipe every year. Our clients have covered more than 75 countries.
Alloy 20 is designed to withstand sulfuric acid. Its nickel， chromium， molybdenum and copper content all provide excellent general corrosion resistance. Restricted carbon and columbium stabilization allows the use of welded fabrication in corrosive environments， usually without post-weld heat treatment. Alloy 20 with 33% nickel is practically immune to chloride stress corrosion cracking. This alloy is often chosen to solve the SCC problems that can arise with 316L stainless steel.
Chemical Composition of N08020
| 倪 | C | 莫 | 锰 | Si | 铁 | 铜 | S | P | Cr |
| 32 – 38 | 最大 0.02 | 2 – 3 | 1 – 2 | 0.7 最大值 | 巴尔 | 3 – 4 | 最大 0.005 | 最大 0.02 | 19 – 21 |
ASTM B729 Alloy 20 Pipe Specifications
| 规格 | ASTM B 729 ASME SB 729 |
| 尺寸 | ASTM、ASME 和 API |
| 尺寸 | O.D: 4 to 219mm W. T.: 0.5 to 20mm |
| 专业领域 | 大直径尺寸 |
| 时间安排 | SCH20， SCH30， SCH40， STD， SCH80， XS， SCH60， SCH80， SCH120， SCH140， SCH160， XXS |
| 类型 | Seamless / ERW / Fabricated / LSAW Pipes |
| 形式 | 圆形，方形，矩形，液压等。 |
| 长度 | 单随机，双随机和切割长度。 |
| 结束 | 平端，斜端，花纹 |
N08020 Equivalent Material
| 标准 | UNS | WERKSTOFF NR. | AFNOR | EN |
| 合金 20 | N08020 | 2.4660 | Z2NCUD31-20AZ | NiCr20CuMo |
物理特性
密度 | 比热 | 电阻率 | 导热性 |
|---|---|---|---|
g/cm³ | J/kg.°C | µΩ·m | W/m.°C |
8.08 | 500 | 1.08 | 12.3 |
机械性能
| 材料等级 | 拉伸强度 房间 N/mm²(MPa) 分钟 | 屈服强度 Rp0.2% N/mm²(MPa) 分钟 | 屈服强度 Rp 1.0% N/mm²(MPa) 分钟 | 伸长率 (%) | 布氏硬度 HBW 2.5/62.5 max | |
| Alloy 20 2.4660 | 退火 | 550 | 240 | 270 | 40 | 220 |
应用：
-Tanks， piping， heat exchangers， pumps， valves， and other process equipment
-Acid cleaning and pickling equipment
-Chemical process piping， reactor vessels
-Bubble caps
-Petrochemical process equipment
-Food and dye production
