Adinox Overseas is a reputed name in the metal industry, recognized globally for delivering premium-grade Alloy 20 Round Bars. Manufactured using high-quality raw materials, our Alloy 20 Bars conform to international specifications including UNS N08020 and ASTM B473. Commonly known by its trade name Carpenter 20, Alloy 20 is a nickel-iron-chromium alloy developed primarily for maximum resistance to acid attack, especially sulfuric acid. Our round bars are engineered for high performance in harsh environments such as chemical processing, pharmaceuticals, petrochemicals, and food industries.

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These ASTM B473 Alloy 20 Rods exhibit excellent corrosion resistance to pitting and chloride-induced stress corrosion cracking, making them ideal for harsh acidic and oxidizing environments. The added copper enhances its resistance to sulfuric acid, while the molybdenum improves its overall strength and corrosion resistance. These Alloy 20 Rods are also highly resistant to phosphoric acid, nitric acid, and aqueous salt solutions.

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At Adinox Overseas, we specialize in supplying Alloy 20 Round Bars in various sizes and finishes tailored to meet customer specifications. Whether you need cold drawn, hot rolled, or bright bar finishes, we ensure precision, strength, and longevity. Our in-house testing and quality assurance measures ensure that each bar adheres to global quality standards, offering robust mechanical properties, dimensional accuracy, and a smooth surface finish.

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The universal standard name for this material is Alloy 20 (Carpenter 20), which is recognized across industries for its superior chemical resistance. We provide these bars with full traceability and third-party inspection certificates, ensuring maximum customer satisfaction and trust in every order. As a leading ASTM B473 Alloy 20 Bar supplier, Adinox Overseas is committed to offering timely deliveries, customized solutions, and global export services to more than 40 countries worldwide.

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Specifications Of Alloy 20 Round Bars

Standard	ASTM B166, ASME SB166
Round Bar Size	3mm~ 800mm
Square Bar Size	4mm* 4mm ~100mm* 100mm
Flat Bar Size	2mm ~ 100mm
Hex Bar Size	2mm ~ 100mm
Angle Size	3mm* 20mm* 20mm~ 12mm* 100mm* 100mm
Thickness	50 mm to 6000 mm Long
Length	1 To 6 Meters, Custom Cut Length
Form	Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc

Chemical Composition for Alloy 20 Round Bars

Grade	C	Mn	Si	S	Cu	Ni	Cr	Fe	Mo	P
Alloy 20	0.07 max	2.00 max	1.00 max	0.035 max	3.00 – 4.00	32.00 – 38.00	19.00 – 21.00	29.85 min*	2.00 – 3.00	0.045 max

Mechanical Properties Of Alloy 20 Round Bars

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Alloy 20	8.1 g/cm3	1443 °C (2430 °F)	Psi -80,000, MPa -551	Psi - 35,000, MPa - 241	30 %

Application Of Industries

Power Plants

Aerospace

Refineries

Construction

Oil & Gas

Sugar

Chemical

Petrochemical

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