Stainless Steel 304L Round Bar Manufacturer & Supplier


Stainless Steel 304L Round Bar is a low-carbon variation of 304 grade, offering excellent corrosion resistance and weldability. Its durability and flawless finish make it popular in a variety of sectors. This alloy comprises chromium, nickel, manganese, silicon, phosphorus, sulfur and iron, providing it great strength and durability even in harsh environments. It shows good tensile strength, yield strength, and elongation, making it a reliable choice for demanding applications. Preston Pipes & Alloys, a leading supplier of stainless steel 304L round bars, provides consistent quality and performance that meets worldwide material standards.


This material offers strong oxidation resistance, even in high temperatures. It does not deform easily under heavy loads. The round bars can be machined and fabricated without difficulty. These tubes are utilized in construction, shipbuilding, oil and gas equipment, food processing units, chemical facilities, and heat exchangers. It is also preferred in decorative architecture due to its clean surface finish and long life. Its combination of strength, corrosion resistance, and ease of production makes it suitable for a variety of sectors.


SS 304L Round Bar

Our Stainless Steel 304L Bar is available in a range of specifications to meet different project needs. Sizes vary from 3 mm to around 800 mm in diameter. We provide short bars in 12 random lengths, while long bars range from 15 to 20 random lengths. Our manufacturing procedures include hot rolling, cold drawing, forging, and machining, which ensure exact dimensions and flawless finishes. The bars comply with standards such as DIN, EN, API, ASTM, SUS, ASME, AISI, GB and UNS, making them suitable for both domestic and export markets.


Each batch undergoes thorough quality checks before dispatch. We conduct a variety of tests, including hardness testing, chemical analysis, tensile testing, and ultrasonic inspection, to ensure defect-free goods. To protect the material during transit, our team bundles bars in wooden boxes, steel strips, or plastic wrapping. The packing method prevents scratches, rust, and damage, so the bars arrive in good condition. Choose premium Stainless Steel 304L Round Bar for dependable performance and lasting value in your projects.

Stainless Steel 304L Round Bar Specification

Specifications ASTM A276, ASME SA276 / ASTM A479 ASME SA479
Standard EN, DIN, JIS, ASTM, BS, ASME, AISI
SS 304L Round Bars Outside Diameter in the range of 4mm to 500mm
SS 304L Bright Bars Outside Diameter in the range of 4mm to 100mm
SS 304L Hex Bars 18mm – 57mm (11/16″ to 2-3/4″)
SS 304L Square Bars 18mm – 47mm (11/16″ to 1-3/4″)
SS 304L Flat Bars 1/2” to 10” in thickness range of 2mm to 150mm
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Length 1 to 6 Meters, Custom Cut Lengths
Form Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

Common Type of Stainless Steel 304L Round Bar

SS 304L Hex Bar

SS 304L Hex Bar

SS 304L Bright Bar

SS 304L Bright Bar

SS 304L Cold Rolled Bar

SS 304L Cold Rolled Bar

SS 304L Flat Bar

SS 304L Flat Bar

SS 304L Square Bar

SS 304L Square Bar

SS 304L Rectangular Bar

SS 304L Rectangular Bar

SS 304L Polished Round Bar

SS 304L Polished Round Bar

SS 304L Hollow Bar

SS 304L Hollow Bar


Contact Preston Pipes and Alloys for best offer & competitive
quotation of Stainless Steel 304L Round Bar

Stainless Steel 304L Round Bar Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
SS 304L 0.035 max 2.0 max 1.0 max 0.045 max 0.03 max 18 – 20 - 8 – 13 -

Stainless Steel 304L Round Bar Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Stainless Steel 304L Round Bar Equivalent Material

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 304L 1.4306 / 1.4307 S30403 SUS 304L 3304S11 03Х18Н11 Z3CN18‐10 X2CrNi18-9 / X2CrNi19-11

Stainless Steel 304L Round Bar Weight Chart

Diameter Weight Chart Dia Weight Chart
(mm) per metre (kg) (in) per metre (kg)
3mm 0.06 1/8" 0.06
4mm 0.10 3/16" 0.14
5mm 0.16 1/4" 0.25
6mm 0.22 5/16" 0.39
7mm 0.30 3/8" 0.56
8mm 0.40 7/16" 0.77
10mm 0.62 1/2" 1.00
12mm 0.89 9/16" 1.22
14mm 1.22 5/8" 1.56
15mm 1.40 11/16" 1.89
16mm 1.59 3/4" 2.25
18mm 2.01 7/8" 3.07
20mm 2.48 1" 4.03
22mm 3.00
24mm 3.57
25mm 3.88

Industrial Application of Stainless Steel 304L Round Bar