Fornitore di barra in acciaio inossidabile 304L

Descrizione

304L Stainless Steel Round Bar

Overview

304L stainless steel round bar is a low-carbon variation of 304 acciaio inossidabile, 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.

• Eccellente resistenza alla corrosione: 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

Forma	Size Range (mm)	Opzioni di finitura
Barra rotonda	6 mm - 500 mm	Hot Rolled, Cold Drawn, Polished
Barra quadrata	10mm × 10mm – 100mm × 100mm	Mill, Bright, Polished
Barra piatta	Thickness 3mm – 100mm	Pickled, Brushed, Mirror
Bar esagono	8mm – 100mm across flats	Smooth, Turned, Ground

Chemical Composition (Typical Values)

Elemento	Composizione (%)
Carbon (C)	≤ 0,030
Manganese (MN)	≤ 2,00
Silicon (Si)	≤ 1,00
Fosforo (P)	≤ 0,045
Zolfo (i)	≤ 0,030
Chromium (CR)	18.0 - 20.0
Nichel (NI)	8.0 – 12.0
Azoto (N)	≤ 0,10

Proprietà meccaniche

Proprietà	Valore
Resistenza alla trazione	≥ 485MPa
Resistenza alla snervamento (0,2%)	≥ 170MPa
Allungamento	≥ 40%
Durezza (Brinell)	≤ 201 Hb
Densità	8,0 g/cm³

Specifiche standard

• ASTM A276 / A479

• ASME SA479

• EN 10088-3

• JIS G4303

• DIN 1.4307

Dimensioni disponibili

• Diameter Range: 6 mm - 500 mm

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

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

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Applicazioni di 304L Stainless Steel Bar

• • Industria alimentare e delle bevande: Tanks, processing equipment, piping

  • Industria chimica e petrolchimica: Vessels, valves, and fittings

  • Medical and Pharmaceutical Industry: Cleanroom equipment, surgical tools

  • Construction and Architecture: Decorative structures, railing systems

  • Applicazioni marine: Piers, fasteners, offshore structures

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Confronto con altri voti in acciaio inossidabile

Grado	Tipo	Durezza (HRC)	Resistenza alla corrosione	Forza	Saldabilità	Magnetico
17-4 ph	PH martensitico	28–44 (HT)	★★★★ ☆	★★★★★	★★★★ ☆	✅ Sì
304	Austenitico	≤ 20	★★★★ ☆	★★ ☆☆☆	★★★★★	❌ NO
316	Austenitico	≤ 20	★★★★★	★★ ☆☆☆	★★★★★	❌ NO
420	Martensitico	50–55	★★ ☆☆☆	★★★★ ☆	★★ ☆☆☆	✅ Sì
440c	Martensitico	55–60	★★ ☆☆☆	★★★★★	★★ ☆☆☆	✅ Sì

✅ = magnetico | ★★★★★ = eccellente

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