The specification includes various grades of stainless steel, each with specific chemical compositions and mechanical properties. Some common grades covered by ASTM A268 include TP410, TP430, TP405, TP409, TP439, TP446, and others.
439 stainless steel pipe is based on ordinary ferrite material (430) by reducing the C content and adding stabilizing elements such as Ti to improve the intergranular corrosion resistance, formability and weldability of this steel type. Compared with 304 stainless steel pipes, although its elongation is lower (about 30%), its strength and corrosion resistance are equivalent, and its corrosion resistance is better than that of 200 series materials.
One of the main advantages of 439 stainless steel pipe is its corrosion resistance. This stainless steel has a high chromium content, which helps prevent rust and corrosion in both wet and dry conditions. This makes it ideal for use in environments where moisture or chemicals are present.
In addition to corrosion resistance and heat resistance, stainless steel pipe 439 also has good formability and weldability. It can be easily molded into different forms or sizes without sacrificing its structural integrity. This makes it versatile and suitable for a variety of manufacturing processes.
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | KS | EN |
| SS 439 | 1.4510 | S43035 | - | - | - | - | - |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | CU | |
| 439 | Min | - | - | - | - | - | 12.0 | - | - | - |
| max | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 14.0 | - | - | - | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 439 | 95,000 | 50,000 | 25 | - | 175 |
FAQ
Q.Are you a factory or trading company?
A.We are professional manufacturer for steel pipe, and our company also is a veryprofessional a trade company for steel products.we can also provide a wide range of steelproducts.
Q.Can I get samples before order ?
A.Yes, of course. Usually our samples are free. we can produce by your samples ortechnical drawings.
Q.What is ASTM A312 stainless steel?
A.ASTM A312 is a specification for seamless and welded austenitic stainless steel pipes that perform well in high temperature and corrosive environments.
