304L Stainless Steel Bar Supplier

Description

304L Stainless Steel Round Bar

Overview

304L stainless steel round bar is a low-carbon variation of 304 stainless steel, offering excellent corrosion resistance, weldability, and formability. Its low carbon content minimizes carbide precipitation during welding, making it ideal for use in high-temperature environments where welding is required.

304L is widely recognized for its versatility and cost-effectiveness, making it one of the most commonly used stainless steel grades in various industries.

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Key Features of 304 Stainless Steel Bar

• Low Carbon Content (L = Low Carbon): Minimizes intergranular corrosion after welding.

• Excellent Corrosion Resistance: Performs well in a wide range of environments including acids, chlorides, and atmospheric conditions.

• Superior Weldability: Suitable for all standard welding techniques without the need for post-weld annealing.

• Good Formability and Machinability: Easy to cut, form, and fabricate for industrial or architectural needs.

• Non-magnetic in Annealed Condition: May become slightly magnetic after cold working.

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Available Types of 304L Stainless Steel Bars

Shape	Size Range (mm)	Finish Options
Round Bar	6mm – 500mm	Hot Rolled, Cold Drawn, Polished
Square Bar	10mm × 10mm – 100mm × 100mm	Mill, Bright, Polished
Flat Bar	Thickness 3mm – 100mm	Pickled, Brushed, Mirror
Hex Bar	8mm – 100mm across flats	Smooth, Turned, Ground

Chemical Composition (Typical Values)

Element	Composition (%)
Carbon (C)	≤ 0.030
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Chromium (Cr)	18.0 – 20.0
Nickel (Ni)	8.0 – 12.0
Nitrogen (N)	≤ 0.10

Mechanical Properties

Property	Value
Tensile Strength	≥ 485 MPa
Yield Strength (0.2%)	≥ 170 MPa
Elongation	≥ 40%
Hardness (Brinell)	≤ 201 HB
Density	8.0 g/cm³

Standard Specifications

• ASTM A276 / A479

• ASME SA479

• EN 10088-3

• JIS G4303

• DIN 1.4307

Available Sizes

• Diameter Range: 6mm – 500mm

• Length: 1 meter to 6 meters or custom lengths upon request

• Finish: Cold drawn, peeled, polished, bright, black, or custom

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Applications of 304L Stainless Steel Bar

• • Food and Beverage Industry: Tanks, processing equipment, piping

  • Chemical and Petrochemical Industry: Vessels, valves, and fittings

  • Medical and Pharmaceutical Industry: Cleanroom equipment, surgical tools

  • Construction and Architecture: Decorative structures, railing systems

  • Marine Applications: Piers, fasteners, offshore structures

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Comparison with Other Stainless Steel Grades

Grade	Type	Hardness (HRC)	Corrosion Resistance	Strength	Weldability	Magnetic
17-4 PH	Martensitic PH	28–44 (HT)	★★★★☆	★★★★★	★★★★☆	✅ Yes
304	Austenitic	≤ 20	★★★★☆	★★☆☆☆	★★★★★	❌ No
316	Austenitic	≤ 20	★★★★★	★★☆☆☆	★★★★★	❌ No
420	Martensitic	50–55	★★☆☆☆	★★★★☆	★★☆☆☆	✅ Yes
440C	Martensitic	55–60	★★☆☆☆	★★★★★	★★☆☆☆	✅ Yes

✅ = Magnetic | ★★★★★ = Excellent

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Get in Touch – Request Quote or Sample

Looking for a reliable stainless steel supplier in China? Gengfei Steel is your trusted source. Contact our team now for free samples, pricing, or custom production support.