Listed in order of importance, they are: Corrosion Resistance Mechanical Properties Fabricability Cost It is the free machining modification of the basic 18% chromium / 8% nickel stainless steel. 1) Composition: 409 stainless steel contains 10.5%-11.75% chromium and 0.5% nickel, while 304 stainless steel has a chromium content of 18%-20% and nickel content of 8%-10%. 303 is much more forgiving and the machining parameter window is much larger. 304 Stainless Steel. In evaluating 303ss vs. 304ss, we'll focus on four key factors where there are distinct differences: Cost Ease of use Durability Applications 1. 303 has the availability as a ' Ugima " Enhanced Machinability level. 303 vs 304 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Type 303 Stainless Steel Type 303 stainless steel is a non-magnetic, austenitic steel which is non-hardenable by heat treatment. The reduced corrosion resistance in the 303 is due to the addition of sulfur or selenium in the composition. This is a prime example of how the price of stainless steel grades can fluctuate based on the ebb and flow of the raw material cost. 303 Vs 304 Stainless Steel Corrosion The 303 and 304 have similar corrosion resistance but the 304 has slightly higher corrosion resistance. Type 303 stainless steel has high machinability, chips break off easily, and machining rates of this stainless steel reach up to 40 surface meters per minute. Grade 303 stainless steel has a tensile strength of around 690 MPa. 304 imported stainless steel plate 201 is made of stainless steel plate.. 2, 201 stainless steel contain 17Cr-4.5Ni-6Mn-N , which is the sort of Ni steel , it is a good replacing steel , after cold-forming . It contains selenium and so cuts easily, whereas 304 is a flexible stainless steel and does not contain selenium. Stainless steel type 303 is part of a family of stainless steel alloys (301, 302, 303, 304, 316, 347). Additionally, it contains about 2% manganese, 0.1% nitrogen, 0.03% sulphur, 0.08% carbon, 0.75% silicon and 0.045% phosphorous. Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength. Properties with values for just one material (1, in this case) are not shown. The material finds use in applications requiring high strength, paired with corrosion resistance up to 1300 F (700 C). The main things that distinguish 316 stainless steel from 303 and 304 are the addition of molybdenum as an alloying agent and a higher nickel content. 3/4 hard and hard condition which is achieved by cold work but it will not avoid galling. Generally used for unmagnetized applications, 300 series stainless steels contain between 18 to 30% chromium and 6% to 20% nickel. f at 212 f), yield strength is 205 mpa (30 ksi), tensile strength is 515 mpa (75 ksi), modulus of elasticity (elastic modulus) is 193 gpa (28 x 10 6 psi), brinell hardness is 316 stainless steel is a molybdenum-alloyed steel. 316 "work hardens" faster than 303. Only the Aussie Black and Aussie Silver are listed as being 303. It also maintains the mechanical and corrosion resistance common to stainless steel. 303 is always used in situations where smooth cutting and extreme surface finishes are mainly required. 303-Stainless This machinable version of 304-stainless is generally available in either of two chemistries, standard 303, or 303Se. 8%). 303 is a free-machining grade of 304 stainless steel that contains added sulfur or selenium. General Properties. 304 . The tensile strength of grade 303 stainless steel hovers around 690 MPa. For these applications, Type 316 is the answer. Type 316 is also austenitic, non-magnetic, and thermally nonhardenable stainless steel like Type 304. Tensile strength identifies the point at which steel breaks under stress. Learn more about the mechanical properties of the 303 stainless steel materials we use in our threaded insert products. Unlike PH 17-4, they are not heat treatable but do offer a higher degree of corrosion resistance. Alloy 303 was specially designed to exhibit improved machinability while maintaining good mechanical and corrosion resistant properties . AISI 303 Stainless Steel vs. AISI 416 Stainless Steel Both AISI 303 stainless steel and AISI 416 stainless steel are iron alloys. 304 has better anti-c. Forum Login. They have 86% of their average alloy composition in common. It is an austenite steel and is only slightly responsive to magnetic fields. Alloy 303 is subject to corrosion cracking in chloride environments above 60, and in the humid marine environment, it is easy to suffer from . . A major difference between 304 and 316 stainless steel is the chemical composition, with 316 containing a significant amount of molybdenum ; typically 2 to 3 percent by weight vs only trace amounts found in 304. [/quote] The Rife 460 Tour blade is also 303 stainless steel. Molybdenum & Stainless Steel While doing your turning job you will notice a huge difference in tool life. This property makes the disassembly of parts easy. Grade 303 stainless steel's yield strength runs about 415 MPa. 303 vs 304 vs 316 Stainless Steel. This difference of 0.05% carbon content produces a slight, but marked, difference in the performances of the two alloys. Composed of slightly higher levels of chromium (16-18%) and nickel (10-14%) than types 303 and 304, the most distinguishable properties of 316 stainless steel come from the addition of 2-3% molybdenum, an element which significantly improves the alloy's corrosion resistance. This kind of stainless steel also has good drawability. The magnetic response of a piece of steel is a quick and qualitative test that can be useful for sorting grades of stainless steel. Stainless steel 303 also corresponds to the following standard designations and specifications: Euronorm UNS BS En Grade 1.4305 S30300 303S31 58M 303 Corrosion Resistance Sulphur additions to the composition act as initiation sites for pitting corrosion. Type 303 also has desirable non-galling properties. Odd thing is that the overview for the Beasley it reads, "As with all Rife putters the Mr. Beasley is 100% milled and made of mild 304 stainless steel" as there are a few that are aluminum and 303. What distinguishes Type 316 from Type 304 is the addition of molybdenum up to a maximum of 3%. 304 stainless steel has a yield strength of 215MPa, while 316 stainless steel has a yield strength of 290MPa. Galling is a form of wear caused by adhesion between sliding surfaces. Usability Javascript is disabled on your browser. Austenitic (both 300-Series and 200-series) stainless steels from other steels. The difference derives from molybdenum. Tensile strength identifies the stress point at which steel breaks. 304 stainless steel is the most popular and widely used grade of steel. The 300 series stainless steels are incredibly tough and versatile and are used across a variety of industries. 304 Stainless Steel Comprising 18% chromium and 8% nickel, type 304 stainless steel is sometimes referred to as 18/8. The machineable nature of Grade 303 stainless steel is due to the presence of Sulphur in the steels composition. Specifications: used 201 stainless steel and 304 stainless steel plate is divided into two types, actually is the component different from 304 quality better, but expensive, 201 worse. And its machinability at least partially makes up for the difference. This combination means a significant boost to 316's corrosion resistance, making it perfect for marine and chloride environments. The main benefit is that 304 stainless steel is usually considered to be one of the strongest of the mild steels available on the market. The yield strength of grade 303 stainless steel is approximately 415 MPa. Read More. Nickel usually makes things more magnetic in other metals. Q. 303 vs 304 stainless steel corrosion The properties of AISI 303 stainless steel include two common variations. 304 is quite tough on tools, especially if your speeds and feeds are incorrect. 303 stainless has a yield strength of around 65,000 psi. From the above table, we could find that 303 contains 0.15% of added sulfur (S). Pros and Cons of 304 Stainless Steel. 303 Stainless Steel. While the sulfur content does decrease its corrosion resistance and . This steel makes up the vast majority of stainless steel production in the world (around 70%) and of this total stainless steel production, 304 stainless steel makes up the majority. Occasionally I detect a 'burnt' odor to the parts after passivating, sometimes more than others, sometimes no detectable odor. The yield strength offset at 0.2% for grade 304 is 290Mpa, whereas, for grade 303, the same value stands at 310 Mpa. 2002. Stainless Steel 303 Properties - Anand Steels Stainless Steel 303 Stainless Steel 303 is a free machining non-magnetic austenitic alloy specially designed for improved machinability while maintaining good mechanical and corrosion resistant properties. The main value of 303 stainless steel is its ease of machining, grinding, and polishing due to the presence of Sulphur in the alloy. It boasts a respectable level of resistance to corrosion, and is much easier to mold than its 316 stainless steel alternative. It is typically used in aircraft applications, machine . Chemical Properties : Tensile Strength: Yield Strength: Rockwell Hardness: Corrosion Resistance: Application Use: 303 All; Uncategorized; All; 1 mm ms sheet weight; 1 titanium plate; 1.2 mm ms sheet weight; 10x12 titanium plates; 13 8 stainless steel chemical composition; 13 8 stainless steel pri In addition, it contains selenium or sulfur, which makes it highly machinable. 18-8 stainless is another name for 304 stainless (18% chromium and 8% nickel). Stainless Steel 303 Properties and Uses. Magnetic Properties of Stainless Steel 304 vs. 316. The "L" in 304L can be interpreted as meaning extra-low carbon. The other element that is of importance is the carbon content of the stainless steel. Type 304 is the most widely used austenitic stainless steel. However, type 303 has a composition that's been altered to increase machinability, so it's weakened to corrosion resistance compared with grade 304. Type 316. It is the free machining modification of the basic 18% chromium / 8% nickel stainless steel. These include the common 303, 304, and 316 alloys. It is often used to produce high performance (formability and corrosion resistance) materials and machine parts. The main difference between 304 vs. 316 stainless steel involves the 316 grade's much higher levels of molybdenum, which are typically 2-3 percent by weight and provide better corrosion resistance. While grade 304 stainless steel only has trace amounts of it, AISI 316 has considerably more. AISI 303 (S30300) Stainless Steel AISI 304 (S30400) Stainless Steel