Stainless Steel 431 Round Bars and Rods

Sabra Metals stands out as a top manufacturer and supplier based in Amman, Jordan, focusing on high-quality Stainless Steel 431 Round Bars and Rods. These products are perfect for industries that demand exceptional strength, hardness, and resistance to corrosion. With a reputation for precision manufacturing and a commitment to international quality standards, Sabra Metals crafts round bars and rods that are built to perform reliably even in the toughest chemical, marine, and industrial settings. The Stainless Steel 431 Round Bars and Rods are prized for their impressive mechanical properties, wear resistance, and dimensional stability, making them a go-to choice for high-stress structural, mechanical, and engineering applications.

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Stainless Steel 431 Round Bars

Stainless Steel 431 Hex Bars

SS Round Bar 431 Cold Finish

What is 431 Stainless Steel Round Bars and Rods?

These round bars and rods are made from martensitic stainless steel, which contains about 16–18% chromium and 0.2–0.4% carbon. This unique blend gives them high tensile strength, hardness, and a decent level of corrosion resistance. Plus, they can be heat-treated, offering the flexibility to achieve the desired mechanical properties. They are designed to resist stress corrosion cracking, wear, and general corrosion, ensuring they last in demanding industrial and mechanical environments.

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431 Stainless Steel Round Bars and Rods Specifications

Stainless Steel Round Bar Specification : ASTM A276 / A479, ASME SA276 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
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 Compositions of 431 Stainless Steel Round Bars and Rods

431	Max	Min
C	0.20	–
Cr	17.00	15.00
Fe	Balance	–
Mn	1.00	–
Ni	2.50	1.25
P	0.040	–
S	0.030	–
Si	1.00	–

431 Stainless Steel Round Bars and Rods Mechanical Properties

Typical Mechanical Properties at Elevated Temperatures, Hardened at 1010oC and Tempered at 30oC Above Working Temperature
Tempering Temperature oC		510	570	620
Working Temperature oC		480	540	590
Tensile Strengt Mpa		1350	720	435
Elongation in 50mm %		15	20	26
Room Temperature Hardness after Test	HB	440	330	280
	Rc	47	37	30

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Equivalent Table of SS 431 Round Bars and Rods

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
Grade	UNS No	BS	En	No	Name	Swedish SS	Japanese JIS
431	S43100	431S29	57	1.4057	X17CrNi16-2	2321	SUS 431

Physical Properties of 431 Stainless Steel Round Bar

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
431	7800	200	10.2	12.1	–	20.2	–	460	720

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431 SS Round Bars and Rods Types

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Frequently Asked Questions (FAQ)

Can Stainless Steel 431 Round Bars/Rod Be Used At High Temperatures?

Yes, Stainless Steel 431 Round Bars/Rods can be used at high temperatures, offering good oxidation and scaling resistance up to 600°F (316°C), making them suitable for moderate temperature applications.

Can Stainless Steel 431 Round Bars/Rod Be Recycled After Use?

Yes, Stainless Steel 431 Round Bars/Rods are fully recyclable. Being a type of stainless steel, they can be melted down and repurposed without losing their inherent properties, contributing to sustainability.

Can Stainless Steel 431 Round Bars/Rod Be Welded?

Yes, Stainless Steel 431 Round Bars/Rods can be welded, although preheating and post-weld heat treatment are recommended to prevent cracking and maintain the material's mechanical properties.

431 Stainless Steel Round Bars and Rods Uses

Stainless Steel 431 Round Bars and Rods find their place in various industries where strength, wear resistance, and reliability are essential. You’ll often see them used in shafts, fasteners, valve components, pump parts, gears, and other precision-engineered machinery. They also play a crucial role in automotive, aerospace, petrochemical, and marine applications, delivering long-lasting performance even under high-stress and corrosive conditions. Their round shape makes them easy to machine, fasten, and fabricate, which is why they’re such a great fit for structural and mechanical uses.

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Stainless Steel 431 Round Bars and Rods