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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.
