Stainless Steel Round Bars Stainless Steel Round Bars Supplier Round Bars – Stainless Shapes only supplies stainless steel round bar with superior machinability and strictest standards for dimensional conformity. If you are looking for extended tool life and free machining stainless in the market, look no further than Stainless Shapes. We only order from the highest quality mills that are ISO certified and can meet your expectations. Contact us for more information. Metals Provided for Round Bars Stainless Steel Round Bar – We offer a larger variety of grades and sizes (see below). By providing superior material, you can meet your customers’ demands and specifications. How can we make you another satisfied customer? Millimeter and Fractional Sizes – Our standard fraction sizes range from 1/16th of an inch to 24 inches. We offer materials with tight tolerance (+0/-.0003’). Regardless of which size you require, rest assured knowing that we will have it delivered to you as fast as possible. All material is fully certified and purchased to our strict quality standards. The mills must perform at an extremely high level to offer our customers free machining stainless and a product that you can count on. See below the list of grades we can offer. Round Bar Finishes Hot Rolled – The hot rolled round bar finish is one of the most common finishes on the larger diameter. It is shipped directly after being completed in the hot rolled finish. Annealed Cold Drawn – This is a thermal treatment used to soften the material being drawn, to modify the microstructure, the mechanical properties and the machining characteristics of the steel and to remove internal stresses in the product. Depending on the desired characteristics of the finished product, annealing may be used before, during (between passes), or after the cold drawing operation, depending on material requirements. Cold drawing the material applies a better finish with tighter tolerances. Cold Finish – The cold finish is an extended version of the cold drawn version, while cold drawn is an extension of the hot rolled process. The cold finish allows us to take the extra time to line the steel in a singular direction. Smooth Turned Bright Finish – Otherwise known as bright annealing, this process creates a smoother finish that offers tighter tolerance than hot rolled rough turn. Centerless Ground – This process allows us to offer a superior product with tight tolerance and consistency. Pump Shaft – The most precise shafting for pumps, we promise to make sure your material has the tightest diametrical and straightness tolerances. Bearing Quality – Bearing quality means that the bars have been centerless ground and running undersized, so it is easier to install bearings. A Note on DFARS and RoHS: DFAR and Domestic material available on request. While we choose the best mills on the market regardless of region, we prefer to choose material that is American made. We do stock Non DFAR in some sizes and grades with lower costs. If you are interested in purchasing DFAR or Domestic material, remind your sales rep to ensure that you receive DFAR or Domestic certified material. *Not All metal used in government or defense contracts requires DFARS’ standards. ROHS is to restrict certain dangerous substances commonly used in electronic and electronic equipment. Any time you see Rohs it is being checked for the presence of Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent chromium (Hex-Cr), Polybrominated biphenyls (PBB), and Polybrominated diphenyl ethers (PBDE). For Cadmium and Hexavalent Chromium, there must be less than 0.01% of the substance by weight at raw homogeneous materials level. For Lead, PBB, and PBDE, there must be no more than 0.1% of the material, when calculated by weight at homogeneous raw materials. Any RoHS compliant component must have 100 ppm, or less of mercury and the mercury must not have been intentionally added to the component. In the EU, some military and medical equipment are exempt from RoHS compliance. (According to rohscompliantdefinition.com,2014) DFARS QUALIFYING COUNTRIESAustralia, Austria, Belgium, Canada, Denmark, Egypt, Finland, France, Germany, Greece, Israel, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, Turkey, and the United Kingdom. (Per DFARS 225.872-1): Qualifying CountriesMetals Requiring Compliance:Not All metal used in government or defense contracts requires DFARS’ standards.DFARS “Specialty Metals” requiring compliance (Per DFARS 252.225-7008): DFARS Our Grades – We provide sizes from 1/16″ to 24″ METAL WEIGHT ID & WALL METAL WEIGHT CALCULATOR Select Your Metal: 15-5 PH Stainless Steel 17-4 PH Stainless Steel Stainless 300 Series Stainless 400 Series Nickel 200 Nickel 201 Nickel 400 Nickel 600 Nickel 625 Nickel 718 Nickel X750 Nickel 800 Nickel 800H Nickel 825 Nickel 904L Titanium Monel Nitronic Select a Shape: Round Bar Square Bar Flat Bar Sheet Plate Circle Ring Hexagon Bar Round Tubing Square Tubing Rectangular Tubing Number of Pieces: Enter size information: in ft in ft in ft in ft Calculated Weights Approx. weight in lbs* *These weights should be used for estimation purposes only. Plate weight does not allow for kerf. Calculator to get ID from OD and Wall of stainless steel tube OD: Wall: ID Calculated Calculator to get Wall from OD and ID of stainless steel tube OD: ID: Wall Calculated *These results should be used for estimation purposes only. Contact us now! Whether you need a few feet or full truckloads, StainlessShapes.net delivers quality 304 stainless I beams. Standard and custom sizes available with fast shipping across the U.S. and expert service and quotes in under 24 hours. Δ Furthermore, for a prompt and accurate quote, call us today. Call - 800-748-9811 Frequently Asked Questions What are stainless steel round bars used for? + Stainless steel round bars are used as raw material for machined shafts, fasteners, pins, valves, pump components, flanges, and fittings. They are also used as structural rods, hanger rods, and conveyor components. Round bar is the most versatile bar form for turning, milling, drilling, and threading to produce precision parts. What grades of stainless steel round bar does Stainless Shapes stock? + Stainless Shapes stocks round bar in Grade 304, 304L, 316, 316L, and specialty grades including 17-4 PH, 15-5 PH, 303 (free-machining), 410, 416, and Nitronic grades. Nickel alloys such as Monel 400 and Inconel 625 in round bar form are also available -- contact the team for current inventory. What diameters of stainless steel round bar are available? + Stainless Shapes stocks round bar diameters from 1/4" through 6" and larger in standard grades, with specialty and larger sizes available on inquiry. Stock is available in 12-foot and 20-foot lengths with cut-to-length service. What is the difference between hot-rolled and cold-drawn round bar? + Hot-rolled stainless round bar has a rougher surface and looser dimensional tolerances. Cold-drawn (cold-finished) bar is pulled through a die, resulting in tighter tolerances (typically +/-0.002" on diameter), improved surface finish, and slightly higher strength. Cold-drawn bar is preferred for precision machining applications. Can stainless steel round bar be machined? + Yes, stainless steel round bar is commonly machined. Grade 304 machines at moderate difficulty due to its work-hardening tendency. Grade 303 (free-machining with sulfur addition) significantly improves chip breaking and tool life. Carbide tooling and cutting fluids are recommended for all grades. Is stainless steel round bar magnetic? + The magnetism depends on grade. Austenitic grades (304, 316, 303) are generally non-magnetic in annealed condition, though cold-drawn bar may show some residual magnetism. Martensitic (410, 416) and ferritic grades are magnetic. Precipitation-hardening grades (17-4 PH) are slightly magnetic. What is the weight per foot of a 1-inch stainless steel round bar? + A 1-inch diameter 304 stainless round bar weighs approximately 2.67 lbs per linear foot. Use the Stainless Shapes metal weight calculator for exact values in any diameter and alloy. What is the difference between 303 and 304 stainless round bar? + Grade 303 is a free-machining austenitic stainless with sulfur added (0.15% min) to improve chip breaking and reduce tool wear -- approximately 3-5x better machinability than 304. The trade-off is lower corrosion resistance and limited weldability. Use 303 for high-volume turned parts; use 304 where welding or maximum corrosion resistance is needed. Can stainless steel round bar be welded? + 304 and 316 round bars are readily weldable using TIG or MIG with appropriate fillers (ER308L for 304, ER316L for 316). Grade 303 is not recommended for welded assemblies due to its sulfur content. What tolerances are available on stainless steel round bar? + Cold-drawn stainless round bar is available to ASTM A276 tolerances: typically +/-0.002" to +/-0.005" depending on diameter. Precision-ground bar is available for tighter tolerance requirements (+/-0.001" or closer). Contact Stainless Shapes to discuss tolerance requirements for your application.
