Prosaic Steel and Alloys, are Recognized as the Prominent Manufacturer, Exporter and Supplier of a broad assortment of ASTM A276 304L Round Bar. The offered ASTM A276 304L Round Bar is designed with utmost precision in conformity with the international quality standards.
ASTM A276 304L Round Bar can be categorically said that steel bars are one of the core components of any manufacturing industry or for that matter any industry that relies on machineries. versatile applications in automotive, textile, fabrication, construction, cement, ship building, paper and pulp, defence, heavy earth moving equipments or aerospace.
Grade 304 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 304 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments. It has excellent forming and welding characteristics. It is readily brake or roll formed into a variety of parts for applications in the industrial, architectural, and transportation fields. Grade 304 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections.
Grade 304L, the low carbon version of 304 and is immune from sensitisation (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm). Grade 304H, with its higher carbon content has application at elevated temperatures, as does stabilised grade 304Ti.
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures
It is the preferred steel for use in marine environments because of its greater resistance to pitting corrosion than other grades of steel. The fact that it is negligibly responsive to magnetic fields means that it can be used in applications where a non-magnetic metal is required. In addition to molybdenum, 304 also contains a number of other elements in varying concentrations. Like other grades of stainless steel, marine grade stainless steel is a relatively poor conductor of both heat and of electricity when compared to metals and other conductive materials.
While 304 is not completely rust-proof, the alloy is more corrosion-resistant than other common stainless steels. Surgical steel is made from subtypes of 304 stainless steel.
|ASTM A276 304L Round Bar Specification||ASTM A276 / ASTM A479 /ASTM A182 / ASME SA276 / ASME SA479 / ASME SA182|
|ASTM A276 304L Round Bar Manufacturing Process||Hot Rolled / Cold Rolled / Hot Forging / Rolling / Machining|
|ASTM A276 304L Round Bar Other Grades||202 / 304 / 304L / 304H / 309S / 310S / 304 / 304L / 304Ti / 317L / 321 / 321H / 347 / 347H / 904L etc.
UNS No. - UNS S30400, UNS S30403, UNS S31008, UNS S30420, UNS S30403, UNS S30403, UNS S30435, UNS S31703, UNS S32100, UNS S34700, UNS S34709, UNS S8904
DIN / EN No. - 1.4301, 1.4307, 1.4845, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4550, 1.4551, 1.4539
AFNOR: Z2 CN 18.10, Z 6 CND 17-11, Z 2 CND 17-12,Z3 CrNi 22.05 AZ
EURONORM: FeMi35Cr20Cu4Mo2, FeMi35Cr20Cu4Mo2, X1CrNiMo17 12 2, X3CrNiMo17 12 2, FeMi35Cr20Cu4Mo2, X2CrNiMoN 22.5.3
|ASTM A276 304L Round Bar Dimension|| Round Bars : Outside Diameter in the range of 4mm to 500mm
Bright Bars : Outside Diameter in the range of 4mm to 200mm
Hex Bars : 18mm – 57mm (11/16″ to 2-3/4″)
Square Bars : 18mm – 57mm (11/16″ to 2-3/4″)
Flat Bars : 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available
|ASTM A276 304L Round Bar Length||2 meters – 7.5 meters ( 8 feet to 24 feet), or Custom Length as per Requirement|
|ASTM A276 304L Round Bar Forms and Shape||Round, Square, Hex (A/F), Rectangle, Billet, Ingot, HRAP, Bright, Forging Etc.|
|ASTM A276 304L Round Bar Finish||Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish|
|ASTM A276 304L Round Bar Dimension Standard||ASTM A 484 / ISO h11 / ISO K12 Tolerances F8 / h8, h9, h10, h11, h12, k12, k13, A-484, EN-10060, DIN-1013 etc.|
|ASTM A276 304L Round Bar Heat Treatment||Condition A in which the bars are Annealed
Condition H in which the bars are Hardened and Tempered at a relative Temperature
Condition T in which the bars are Hardened and Tempered at a relatively High Temperature
Condition S in which the bars are Strain Hardened or relatively Light Cold Worked
Condition B in which the bars are Relatively severe Cold worked.
Solution Annealed, Aging and Double Aging
|ASTM A276 304L Round Bar Surface Finish||Centreless Ground & Belt Polished, up to Ra value = 0.2 um (12 RMS), and Grit Polished of up to 180 to 600|
|ASTM A276 304L Round Bar Chamfering||Available in 30°, 45° & 60° through fully automatic, both-end chamfering machine|
|ASTM A276 304L Round Bar Other Testing||NACE MR0175, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, Magnetic Particle Inspection (MPI), 100% tested thru Digital Ultrasonic Flaw Detector, as per ASTM A-388, EN 10308 (class 1to4),API 6A/ISO 10423:2003-PSL3,SEP 1920:1984 ( class A,B,C), MIL STD 2154 etc.|
|ASTM A276 304L Round Bar Value Added Services||Rolling, Drill, Punch, CNC Machining, Sand Blasting, Shot Blasting, Heat Treatment, Anti-rust Paint, Polishing|
|ASTM A276 304L Round Bar Packaging||Loose / Carrate / Wooden Pallet / Wooden Box / Plastic Cloth Wraps|
|ASTM A276 304L Round Bar Shipment & Transportation||By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes|
|ASTM A276 304L Round Bar Material Test Certificate||Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC|
|ASTM A276 304L Round Bar Documentation||Commercial Invoice which includes HS Code / Packing List including net weight and gross weight, number of boxes, Marks and Numbers / Certificate of Origin legalized/attested by Chamber of Commerce or Embassy / Fumigation Certificates / Raw Material Test Reports / Material Traceability Records / Quality Assurance Plan (QAP) / Heat Treatment Charts / Test Certificates certifying NACE MR0103, NACE MR0175 / Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2 / Guarantee Letter / NABL approved Laboratory Test Reports / Welding Procedure Specification/Procedure Qualification Record, WPS/PQR / Form A for the purposes of the Generalized System of Preferences (GSP)|
The chemical composition of grade Stainless Steel 304L Round Bar is outlined in the following table
|304||0.07max||2.0max||0.75max||0.045max||0.03max||min: 18.0 max: 20.0||min: 8.0 max: 10.5||—|
|304L||0.03max||2.0max||0.75max||0.045max||0.03max||min: 18.0 max: 20.0||min: 8.0 max: 12.0||0.10 max|
|304H||min: 18.0 max:20.0||min: 8.0 max: 10.5||min: 0.04 max:0.10||0.75 max||2.0 max||0.045 max||0.03 max||0.10 max|
The mechanical properties of grade A276 304L Round Bar are displayed in the following table.
|Grade||Tensile Strength (MPa) min||Yield Strength 0.2% Proof (MPa) min||Elongation (% in 50mm) min||Hardness|
|Rockwell B (HR B) max||Brinell (HB) max|
|304H also has a requirement for a grain size of ASTM No 7 or coarser.|
Physical properties of 304L grade stainless steel in the annealed condition
|Grade||Density(kg/m3)||Elastic Modulus (GPa)||Mean Coefficient of Thermal Expansion (μm/m/°C)||Thermal Conductivity (W/m.K)||Specific Heat 0-100°C (J/kg.K)||Electrical Resistivity (nΩ.m)|
|0-100°C||0-315°C||0-538°C||at 100°C||at 500°C|
|ASTM A276||This specification encompasses cold-finished or hot-finished bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels.|
|ASTM A479||This specification includes cold and hot finished stainless steel bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels.|
|ASTM A484||This specification includes wrought stainless steel bars, shapes, forgings, and billets or other semi-finished materials, except wire, for forging. The materials are available in four types of conditions.|
|ASTM A582||This specification includes cold or hot finished bars, which are suitable for machining processes. This specification includes rounds, squares, and hexagons, from common types of stainless free-machining steels.|
|ASTM B473||This specification includes nickel alloy bar & wire, which can be produced in a solution-annealed condition, stabilized-annealed condition, or annealed condition.|
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ASTM A276 304L Round Bar is Covered with Plastic Cloth and Packed in Wooden Box, Wooden Pallet and Wooden Fumigated Carrate. Our Packaging is Fully Waterproof and Safe for Transport with Proper Strips on Wooden Box, having Lifting Point.
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