303Cu steel、304Cu steel free cutting stainless steel rod cold finished stainless steel bar
What is 303Cu steel、304Cu steel？
303Cu and 304Cu contain copper, copper as the main alloy element, 303Cu and 304Cu is a stainless steel alloy.
303Cu steel is the free machining version of 303 alloy and has good cutting performance.
304Cu is characterized by strong corrosion resistance, and 304Cu can be used for parts with high corrosion resistance requirements
303Cu steel、304Cu steel application
303Cu steel、304Cu steel are both stainless steel alloys. 303Cu steel、304Cu steel are both austenitic stainless steels, meaning that they are non-magnetic and can be easily formed and welded. 303Cu steel is typically used in applications requiring good corrosion resistance and machinability, such as fasteners, components for valves and pumps, and other parts where corrosion resistance is desired. It is also commonly used in the food and beverage industry for equipment and utensils. 304Cu Steel is commonly used for applications requiring good corrosion resistance and high levels of strength and durability. It is often used in the medical, aerospace, and automotive industries for parts that require welding and forming. It is also used in cookware, cutlery, and sinks.
Chemical composition of 303Cu
| C | Si | Mn | P | S | Cr | Ni | Cu |
| ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | 17-19 | 8-10 | 1.5-3.5 |
303Cu is a free-cutting stainless steel with copper，sulfur and selenium, for applications where it is mainly required for easy cutting and high gloss. 303Cu stainless steel improves cutting performance and high temperature bonding resistance. Most suitable for automatic lathes. Bolts and nuts.
303Cu stainless steel is austenitic type free-cutting stainless steel wear-resistant acid steel. In order to improve the performance of the steel, no more than 0.60% molybdenum can be added to the steel, which can resist ablation, good machinability and burning resistance. Corrosion resistance
· ◆ Material: 303Cu.
· ◆ Shape: Round, hexagonal，square
· ◆ Size:
· round bar 5.0mm ~ 100.0mm,
· Hexagonal rod 5mm ~ 70.0mm,
· ◆ Length: 2000mm~6000mm according to customer requirements.
· ◆ Packing: PE stretch film, wooden pallet, wooden box
Please contact us for special names, lengths, materials, precision, etc.
303Cu free cutting stainless steel rod propeties
303Cu stainless steel bar: It is easier to cut than 304 by adding Cu element and a small amount of sulfur and phosphorus. Other properties are similar to those of 304, and the corrosion resistance is not good.
Applications: petroleum, electronics, chemical, pharmaceutical, textile, food, machinery, construction, nuclear power, aerospace, military and other industries!
303Cu is a free-cutting stainless steel with copper added and containing sulfur and selenium, respectively, for applications where high cutting and surface finish are required. 303Cu stainless steel improves cutting performance and high temperature bonding resistance. Most suitable for automatic lathes. Bolts and nuts.
303Cu stainless steel is austenitic type free-cutting stainless steel wear-resistant acid steel. In order to improve the performance of the steel, no more than 0.60% molybdenum can be added to the steel, which can resist ablation, good machinability and burning resistance. Corrosion resistance. 303Cu stainless steel mechanical properties after annealing and stress relief, tensile resistance 515MPa, yield 205MPa, elongation 40%. Stainless steel 303 has a standard hardness of HRB 90-100, HRC 20-25
FAQ
What’s the difference between 303cu steel and 303ss?
303cu steel is a copper-bearing version of 303 stainless steel, while 303ss is the non-copper-bearing version. 303cu is more corrosion resistant than 303ss due to the copper content, but is more expensive and has a higher machinability.
What is the difference between 304 and 304Cu?
304 is the most common grade of stainless steel and is the most widely used grade. It is an austenitic stainless steel, meaning it is non-magnetic and has excellent corrosion resistance. 304Cu is a type of 304 stainless steel with a higher copper content than regular 304. This provides better corrosion resistance than standard 304, especially in environments with high humidity.
What is the difference between stainless steel 204Cu and 304?
The main difference between stainless steel 204Cu and 304 is that 204Cu contains about 3-4% copper, which helps improve its machinability and corrosion resistance. 304, on the other hand, contains no copper and is more prone to rusting and corrosion. In addition, 304 is generally considered to be the higher-grade stainless steel, with better corrosion resistance, durability, and strength.
