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Stainless Round Bars, 303 Rounds, 303 Stainless Bar, 316 Rounds, 304 Rounds, 416 Rounds

RHS stainless offers a complete range of stainless round bar. From the common grades such as 303 Rounds, 316 Rounds, 304 Rounds, and 416 Rounds, RHS Stainless also supplies 416 HT Rounds, 17-4 (630) Rounds and 17-4 (H1150) Rounds. RHS stainless stocks only the highest quality round bars in a wide variety of grades and sizes, with ASTM standard dimensional tolerances and mechanical properties. These round bars are used for a number of applications including Pump Shafts, Hot and Cold Forging, Fastener and Scaffolding applications.

 
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  The stocking grades and size range for round bar are listed below:
 
AISI 303 .0937" to 14.00"
AISI 304/304L .0937" to 18.00"
AISI 316/316L .1250" to 24.00"
AISI 416 .1250" to 14.00"
AISI 416 HT (26-32 HRC) .250" to 3.000"
AISI 17-4 (630) .1875" to 16.00"
AISI 17-4 (H1150) 1.000" to 14.00"
 
  Grade 303 (AISI 303)

Grade 303 or the UNS S30300 stainless steel bar, is free machining steel. Its impressive corrosion resistance and great machinability makes it one of the most used free machining stainless steels obtainable. UNS S30300 or Grade 303 is extensively used in different products starting from general machining like screw etc. Grade 303 is not responsive to hear treatment, but its impressive toughness is admirable just as with all the other austenitic grades.

 
  Grade 303 is used in following Industries:
 
bullet All-purpose machining
bullet Screw machining
 
  Products manufactured using Grade 303 (completely or partially) are:
 
bullet Bushings
bullet Aircraft fittings
bullet Gears
bullet Bushings
bullet Nuts and Bolts
bullet Screws
 
  Grade 304/304L (AISI 304/304L)


Grade 304/304L or UNS S30403 as it’s called technically, in general is preferred due to the fact that it is the low carbon content variant of Type 304 and because it is “free machining” variant. The Grade 304/304L comes with immense blend of corrosion resistance, strength and fabricibility, which makes it suitable for almost in all types of industries. The Grade 304/304L also is unresponsive to heat treatments, but the strength and hardness could be increased using cold working.

Grade 304/304L is used in almost every industry.

 
  Grade 304/304L is used for manufacturing the following products (partially or completely):
 
bullet Architectural railings, paneling and trim
bullet Chemical containers, even for transport
bullet Kitchen benches, sinks troughs, equipment & appliances
bullet Food processing equipment
bullet Woven or welded screens for quarrying, mining and water filtration
bullet Threaded fastener
bullet Springs
 
  Grade 316/316L (AISI 316/316L)


The Grade 316/316L also called as Grade 316 and UNS S31600 is an austenitic stainless steel which has chromium, molybdenum and nickel as its major alloying elements. Molybdenum (is not present in stainless steel Grade 304) addition is helpful for Grade 316/316L’s increased resistance in chloride environments and salt water. Grade 316/316L gives quite good creep resistance in high temperatures and it has better strength in comparison to stainless steel 304.

Grade 316/316L is non-magnetic in annealed state, but it can become a little magnetic while under extensively cold temperatures, and requires further annealing to correct. Grade 316/316L isn’t responsive to thermal treatment but it’s strength and hardness can be increased by cold working.

Grade 316/316L stainless steel technically referred as UNS S31600/S31603 UNS S31600/S31603 and generally called as stainless steel 316/316L. Dual Certified is stainless steel 316’s low carbon content modification. Grade 316/316L stainless steel primarily is used for manufacturing heavy-gage welded products. Grade 316/316L is anti carbide precipitation and it can be used in the 797° F to 1580° F temperature range, which is more apt with application connecting corrosion resistance.

 
  Industries that uses Grade 316/316L:
 
bullet Chemical
bullet Architectural (in corrosive environments)
bullet Mining
bullet Marine
bullet Pharmaceutical
bullet Petroleum
bullet Textile
bullet Pulp and Paper
bullet Water filtration
bullet Transportation
 
  Products which make use of Grade 316/316L include:
 
bullet Compression fittings
bullet Ball valves
bullet Hardware
bullet Flanges
bullet Hose fittings
bullet Heat exchangers
bullet Laboratory benches
bullet Jewelry
bullet Pressure reducing valves
bullet Laboratory gear
bullet Strainers
bullet Springs
bullet Threaded fasteners
 
  Grade 416 (AISI 416)


Grade 416, also called UNS S41600 is a Martensitic grade of stainless steel. The Martensitic stainless steels have been manufactured as an alloy, which could be toughened using heat treatment and it also will be corrosion resistant, though it is not as resistive to corrosion as the ferritic or austenitic stainless steels. Stainless Steel 416 has respectable wear resistant, and is magnetic; it also is highly machinable. Its other qualities include: non-galling and non-seizing properties, sensible strength in hardened and tempered state and resistance to gently corrosive surroundings. Generally it’s ordered in T (tempered), H (hardened) and A (annealed) conditions.

Stainless Steel 416 doesn’t come with the approval to be used in high sulfur surroundings (MR-01-03, NACE MR-01-75). Stainless Steel 416 is in general considered as the first “free machining” stainless steel and has the capability to be easily tapped, turned, reamed, broached, threaded milled and drilled according to manufacturer's approval for different suitable tool feeds, types and speeds.

 
  Industries using Grade 416 include:
 
bullet Electrical motor
bullet Nut and Bolt
bullet Gear
bullet Pump
bullet Valve
 
  Products made of Grade 416 (partially or completely) include:
 
bullet Axles
bullet Fasteners
bullet Bolts
bullet Motor shafts
bullet Gears
bullet Pinions
bullet Nuts
bullet Screw machine parts
bullet Pump shafts
bullet Studs
bullet Washing machine components
bullet Valve parts
 
  Grade 630 (AISI 17-4)


The 17-4 stainless steel bar, also called as UNS S17400, Grade 630 and 17-4 PH was developed in the 50s and is called one of the original precipitation hardened grades. It is mainly comprised of 4% nickel, 17% chromium and 4% copper with the balance being iron. There also are trace amounts of phosphorus, manganese, silicon, sulfur, tantalum and columbium (or niobium). 17-4 PH Stainless Steel comes with a blend of corrosion and oxidation resistance. Some other characteristics include toughness, excellence in mechanical properties and high strength at temperatures equaling to 600° F. the 17-4 PH Stainless Steel is preferred by engineers because of its high strength and higher corrosion resistance in comparison to several other stainless steel grades.

17-4 PH Stainless Steel can easily be forged, formed and welded. Machining might be done in its ultimate heat treat condition or during the solution-annealed state. The desired mechanical properties such as strength and ductility can easily be attained through heating the components at different temperatures.

 
  Industries which use 17-4 PH include:
 
bullet Chemical
bullet Aerospace
bullet General metal working
bullet Food processing
bullet Petrochemical
bullet Paper industries
bullet Petroleum
 
  Products that are made from 17-4 PH Stainless Steel include:
 
bullet Air spray guns
bullet Boat fittings
bullet Bearings
bullet Dental components
bullet Castings
bullet Gears
bullet Fasteners
bullet Hardware
bullet Golf club heads
bullet Molding dies
bullet Load cells
bullet Precision rifle barrels
bullet Nuclear waste casks
bullet Propeller shafts
bullet Pressure sensor diaphragm
bullet Sailboat self steering systems
bullet Pump impeller shafts
bullet Springs
bullet Valves


303 Rounds (or other 303 Stainless bar), 316 Rounds, and 304 Rounds etc are austenitic stainless steel bars which can be used in immensely corrosive conditions. These grades are characterized by exceptional resistance to stress corrosion cracking in chloride bearing surroundings, superb resistance to crevice and pitting corrosion, immense resistance to general corrosion, and certain physical properties that render good mechanical strength.

The stock of 316 Rounds, 303 Rounds, 304 Rounds, 303 Stainless Bar and 416 Rounds at RHS Stainless is of the highest quality. We offer round bars in a variety of grades and sizes to meet the needs of all our customers.

Our on-hand stock and logistics are planned in a way that the customer gets their order delivered well within the promised lead time. Apart from ensuring the timely delivery of the orders, we also make sure that the 303 Stainless Bar, 416 Rounds, 316 Rounds, 304 Rounds and 303 Rounds are delivered as per specifications without any surface defects.

Our on-time deliveries and high quality round bars have gained us a reputation in the market as a valuable distributor of stainless steel bars.

 
 
 
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RHS Stainless (formerly MPI Stainless)
2863 Brodhead Road, Bethlehem, PA 18020,
Phone: 610.997.7604, Fax: 610.997.7605
Email: mikesamsel@rhsstainless.com
         
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