Active Member
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[China]
Address: Add.: No.1288, Guangrui Road, Liangxi District, Wuxi City, Jiangsu, China
Contact name:Isabelle
Wuxi Zhongxin Special Steel Co.,Ltd. |
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UNS N08904 Alloy 904L Coil AISI/ASTM 904L DIN 1.4539 SUS 904L SS2562 thick 0.5mm for petrochemical equipment
904L is an austenitic stainless steel. In comparison to 316L, its molybdenum addition gives it superior resistance to localized attack (pitting and crevice corrosion) by chlorides and greater resistance reducing acids and in particular its copper addition gives it useful corrosion resistance to all concentrations of sulphuric acid. Its high alloying content also gives it greater resistance to chloride stress corrosion cracking, but it is still susceptible. Its low carbon content makes it resistant to sensitization by welding and which prevents intergranular corrosion.
It has applications in piping systems, pollution control equipment, heat exchangers, and bleaching systems.
Omega experimented with 904L or 'Uranus Steel' with the PloProf dive watches in 1971-72. The inspiration came from French deep sea diving company COMEX, who used this steel in their diving bells due to superior corrosion resistance in salt water
Mechanical properties of grade 904L stainless steels
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 904L | 490 | 220 | 36 | 70-90 typical | 150 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | At 20°C | At 500°C | |||||
| 904L | 7900 | 190 | 15 | - | - | 11.5 | - | 500 | 952 |
Q: Would you provide samples For free?
A: Yes . with on stock specification We provide samples For Free .
Freight charge collect
Q:What information should i provide to source for the right
products ?
A: Material grade, width, thickness, coating and Purchase quantity
, Expected lead time ,etc
Q: What are the shipping ports?
A: Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you
can choose other ports according to your needs.
Q: About product prices?
A: Prices vary from period to period due to cyclical changes in the
price of raw materials.
Q: How long does your delivery time take?
A: In general, our delivery time is within 5-45 days, and may be
delayed if the demand is extremely
large or special circumstances occur.
Q: Can I visit your location?
A: Of course, we welcome customers from all over the world to visit
our factory. However, some
of the plants are not open to the public.
Q: Does the product have quality inspection before loading?
A: Of course, all our products are strictly tested for quality
before packaging, and unqualified
products will be destroyed.We provide All original Mill test
certificate and support third party inspection.
Q: How to pack the products?
A: The inner layer has a waterproof paper outer layer with iron
packaging and is fixed with a fumigation
wooden pallet. It can effectively protect products from corrosion
during ocean transportation.
Q: What is your working time?
A: In general, our online service time is Beijing time: 8:00-22:00,
after 22:00,
we will reply to your inquiry during the next working day.
