--18th.January.2024--
316 Stainless steel sheet with thickness 1.5 x 1500 x 3000mm, total 23.65Tons are all packed by export worth wooden pallet.
Today alleady loaded in a full 20ft container.And will transfer to Shanghai Sea port to load on Ship.
Alloy 316 (UNS S31600) is a molybdenum-based austenitic stainless steel. Compared with conventional chromium-nickel austenite such as 304 alloy, this stainless steel has better resistance to general corrosion, pitting corrosion, and crevice corrosion. These alloys have higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. In addition to excellent corrosion resistance and strength, 316 alloy and 316L copper-nickel-molybdenum alloy also have the typical characteristics of austenitic stainless steel, namely good assembly and formability.
In applications requiring better resistance to general corrosion and pitting corrosion, 317L is more popular than 316 or 316L because 317L contains 3-4% molybdenum, while 316 and 316L only contain 2-3% molybdenum.
316 alloy and 316L and 317L copper-nickel-molybdenum alloys also have the typical characteristics of austenitic stainless steel: good processability and formability.
316 Stainless Steel Chemical composition ASTM A240, ASME SA-240 is shown in the table below:
| Stainless Steel 316 | Stainless Steel 316L | Stainless Steel 317L | |
| C | 0.08 | 0.030 | 0.030 |
| Mn | 2.00 | 2.00 | 2.00 |
| Si | 0.75 | 0.75 | 0.75 |
| Cr | 16.00 18.00 |
16.00 18.00 |
18.00 20.00 |
| Ni | 10.00 14.00 |
10.00 14.00 |
11.00 15.00 |
| Mo | 2.00 3.00 |
2.00 3.00 |
3.00 4.00 |
| P | 0.045 | 0.045 | 0.045 |
| S | 0.030 | 0.030 | 0.030 |
| N | 0.10 | 0.10 | 0.10 |
| Fe | Balance | Balance | Balance |
Preservative
General corrosion
Compared with 18-8 stainless steel, 316, 316L and 317L have better corrosion resistance in atmospheric environments and other mild environments. Generally speaking, media that does not corrode 18-8 stainless steel will not corrode molybdenum-containing grades. The only exception is highly oxidizing acids such as nitric acid, to which stainless steel containing molybdenum is less resistant.
In sulfuric acid solutions, 316 and 317L have better corrosion resistance than other chromium-nickel type grades. Both grades have good corrosion resistance to highly concentrated solutions at temperatures up to 120°F (38°C). Of course, in-service testing is essential as operating conditions and acidic contaminants can severely affect corrosion rates. Both grades offer better corrosion resistance than other types of stainless steel when sulfur-containing gases are concentrated. However, in such applications the acid concentration has a considerable effect on the corrosion rate and this factor should be carefully considered.
Molybdenum-containing stainless steel 316 and 317L have certain corrosion resistance to various other environments. The following corrosion data demonstrates that these alloys exhibit superior corrosion resistance in boiling 20% phosphoric acid solutions. They are also widely used in the treatment of hot organic acids and fatty acids. In the manufacture and handling of food and pharmaceutical products, molybdenum-containing stainless steel is often used to minimize metal contamination.
Generally speaking, under the same environmental conditions, the performance of 316 and 316L can be regarded as equivalent to that of 317L. However, exceptions are made in environments that can cause intergranular corrosion in welding and heat-affected zones. In such media, 316L and 317L are more commonly used because of their low carbon content, which can improve resistance to intergranular corrosion.
