| 证书 | LR，BV，DNV，GL，ABS，KR，CCS，TS，PED，AD2000，ASME II ， III， | 标准： | astm a376 ， astm a511 ， astm a213 ， nace 0175 ， astm a312 ， gost9941-81 ， dn17456 ， en10216-5 |
|---|---|---|---|
| 测试： | 涡流测试，静水压测试，超声波测试，晶粒度测试，硬度测试 | 尺寸 | ANSI B16.10 ， ANSI B16.19 |
| 强光 | 不锈钢， 无缝锅炉管 | ||
Stainless Steel ASTM A312 TP304 Oil Gas Corrosion resistance
What is ASTM A312 TP 304 SMLS Pipe?
TP304 stainless steel is a common seamless steel pipe material， this kind of steel pipe has excellent corrosion resistance and high temperature performance， which is widely used in petroleum， chemical， electric power and other fields.
The chemical composition of TP304 stainless steel mainly includes iron， chromium， nickel and other elements， of which the chromium content is generally between 18% and 20%， and the nickel content is between 8% and 11%. The mechanical properties of this stainless steel are related to the purity and thickness of the steel， generally the tensile strength is between 400MPa and 650MPa， the yield strength is between 200MPa and 400MPa， and the elongation is between 30% and 60%.
Characteristic of 304 SMLS Pipe
Corrosion resistance : 304 stainless steel has good corrosion resistance and can be used under a variety of corrosive media， including acids， alkalis， salts and other chemicals.
High temperature resistance: they can work for a long time in high temperature environments and can withstand the impact of high temperature steam and high temperature gases.
Strength and toughness:they have high strength and excellent toughness， able to withstand high pressure and shock loads.
Easy to process : they are easy to process into various shapes and sizes and have good welding performance.
化学成分
等级 | C | 锰 | Si | P | S | Cr | 莫 | 倪 | N | |
304 | min.max. | -0.08 | -2.0 | -0.75 | -0.045 | -0.03 | 18.0-20.0 | – | 8.0–10.5 | -0.10 |
304L | min.max. | -0.030 | -2.0 | -0.75 | -0.045 | -0.03 | 18.0-20.0 | – | 8.0–12.0 | -0.10 |
304H | min.max. | 0.04-0.10 | -2.0 | -0.75 | -0.045 | -0.03 | 18.0-20.0 | – | 8.0–10.5 | – |
机械 P属性:
等级 | 拉伸强度（兆帕） min | 屈服强度 0.2% 抗压强度（兆帕） min | 伸长率（%，50 毫米）最小值 | 硬度 | |
洛氏 B (HR B) 最大值 | 最大布氏硬度 (HB) | ||||
304 | 515 | 205 | 40 | 92 | 201 |
304L | 485 | 170 | 40 | 92 | 201 |
304H | 515 | 205 | 40 | 92 | 201 |
304H 还要求晶粒大小为 ASTM 7 号或更粗。 | |||||
等级规格:for 304 grade stainless steel
等级 | UNS 编号 | 老英国 | 欧洲 | 瑞典 SS | 日本 JIS | ||
BS | En | 没有 | 名称 | ||||
304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
304L | S30403 | 304S11 | – | 1.4306 | X2CrNi19-11 | 2352 | SUS 304L |
304H | S30409 | 304S51 | – | 1.4948 | X6CrNi18-11 | – | – |
这些比较只是近似值。本列表旨在对功能相似的材料进行比较 不 作为合同等值表。如果需要精确的等价物，必须参考原始规格。 | |||||||
尺寸范围
生产 | 外径 | 壁厚 |
无缝钢管 | 6.00 毫米至 830 毫米 | 0.5 毫米至 48 毫米 |
申请：
- 食品加工设备，尤其是啤酒酿造、牛奶加工和葡萄酒酿造设备。
- 厨房工作台，水槽，槽，设备和器具
- 建筑镶板、栏杆和装饰
- 化学品容器，包括用于运输的容器
- 热交换器
- oil and gas
