Stainless Steel 431 Round Bars and Rods

Welcome to Junaid Metals, your trusted partner in Manama, Bahrain, for premium stainless steel solutions. We are proud to specialize in supplying high-grade Stainless Steel 431 Round Bars and Rods, known for their exceptional strength and reliability. Catering to the robust demands of industries across the region, our products are sourced and delivered with a commitment to quality and customer satisfaction that has become our hallmark. When your project demands durability, you can count on Junaid Metals to deliver the right materials, right on time.

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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?

Stainless Steel 431 is a martensitic grade strengthened by a higher chromium content, which gives it excellent corrosion resistance, particularly against atmospheric conditions. Its composition also provides impressive mechanical properties, including a very high tensile strength and good hardness levels through heat treatment. This makes the material remarkably tough and wear-resistant, allowing it to perform reliably in demanding environments where both strength and a degree of corrosion resistance are non-negotiable requirements for long-term success.

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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

The remarkable toughness of Stainless Steel 431 Round Bars and Rods makes them a go-to choice for high-stress components. You’ll commonly find them used in essential parts like shafts, valves, pumps, and fasteners within the oil and gas, aerospace, and automotive industries. They are also ideal for manufacturing tools and components for the chemical processing sector, where resistance to corrosion and wear is critical. Essentially, these bars are selected for applications where failure is not an option and long-lasting performance is absolutely essential.

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Stainless Steel 431 Round Bars and Rods