431 Stainless Steel Round Bar Suppliers

431 Stainless Steel Round Bars

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431 Stainless Round Bars Supplier
What are 431 Stainless Steel Round Bars?
Specification of SS 431 Round Bar
Stainless Steel 431 Round Bars Mechanical Properties
SAE 1030 431 SS Round Bars Chemical Composition
431 Stainless Steel Round Bars Physical Properties
Equivalent Grades for SS 431 Round Bars
Applications of Stainless Steel 431 Round Bars
FAQs

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431 Stainless Round Bars Supplier

Lakshya Steel is known for manufacturing and supplying high-quality 431 SS round bars all over the world. Our round bars are having strong tensile strength and remarkable resistance to corrosion, making them ideal for demanding applications in the automobiles, marine, and aerospace industries. These bars are perfect for high-performance fasteners like bolts and shafts since they are made to last and can be heat-treated to increase their hardness. Our SS 431 round bars and rods meet both national and international quality standards, ensuring reliability and performance. We offer these round bars in various specifications, including surface finish, end finish, dimensions, shapes, sizes, and lengths. We also provide custom-cut specifications to meet the unique requirements of our clients. Lakshya Steel is dedicated to providing top-notch products that meet the highest quality standards. Our in-house manufacturing unit is equipped with advanced machinery to ensure the quality of our 431 stainless steel round bars. Contact us today to learn more about our offerings and how we can support your business.

What are 431 Stainless Steel Round Bars?

431 stainless steel round bars are a high-strength, corrosion-resistant material known for its excellent toughness. This alloy, which combines high chromium and low nickel content, is particularly effective in environments that expose materials to oxidizing acids, organic substances, and mild marine conditions. Its unique composition allows it to be hardened and tempered, providing superior torque strength and making it ideal for demanding mechanical applications. While it’s not suitable for cold-working due to its high yield strength, it performs well in processes like deep drawing and bending. Overall, the 431 stainless steel round bar is a versatile and durable choice for various industrial uses, offering a reliable balance of strength and corrosion resistance.

Specification of SS 431 Round Bar

Standard	410 / 1.4006 420 / 1.4021 430 /1.4016 431 / 1.4057 440 A /1.4109 440 B / 1.4112 440 C /1.4125 446 / 1.4762
Designation	ASTM, ASME, AISI A 276 , SA 276, A 479, SA 479
Range	3 MM TO 350 MM DIA
Finish	Bright, Polish & Black
Form	Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
Application	Cutlery, Steam and gas turbine blades, Kitchen utensils, Bolts, nuts, screws, Pump and valve parts and shafts, Mine ladder rugs, Dental and surgical instruments, Nozzles, Hardened steel balls and seats for oil well pumps.

Stainless Steel 431 Round Bars Mechanical Properties

Tempering Temperature (°C)	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Hardness Brinell (HB)	Impact Charpy V (J)
Annealed *	862	655	20	285 max	–
204	1345	1055	20	388	50
316	1295	1035	19	375	53
427	1350	1080	19	388	#
538	1140	965	19	321	#
593	1015	770	20	293	64
650	960	695	20	277	84

SS Round Bars Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Ni
431	0.20 max	1.00 max	1.00 max	0.040 max	0.030 max	15.00 – 17.00	1.25 – 2.50

Stainless Steel Round Bars Physical Properties

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

Equivalent Grades for SS 431 Round Bars

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

Applications of Stainless Steel 431 Round Bars

Our SS 431 Round Bars are known for their exceptional corrosion resistance and strength, making them ideal for various industries:

Key Industries:

Petrochemical: Resistant to corrosion and high temperatures.
Oil and Gas: Durable for harsh conditions.
Chemical: Withstands corrosive substances.
Power Plant: High strength and temperature resistance.
Energy: Durable and wear-resistant.
Pharmaceuticals: Hygienic and corrosion-resistant.
Pulp & Paper: Resistant to wear and corrosion.
Food Processing: Hygienic, corrosion-resistant, and durable.
Aerospace: High strength-to-weight ratio and corrosion resistance.
Refining: Withstands harsh chemical environments.

For top-quality 431 SS round bars, trust Lakshya Steel for reliable performance and industry-specific solutions

410 Stainless Steel Fasteners Types

FAQs

What are the properties of 431 stainless steel?

431 stainless steel provides excellent corrosion resistance, high strength, and wear resistance. This high-carbon martensitic alloy can be heat treated for various properties and is enhanced with chromium. It’s ideal for demanding aerospace, automotive, and marine applications due to its ductility, toughness, and durability.

How are SS 431 Round Bars/Rods Hardened?

SS 431 round bars/rods are hardened through heat treatment, which involves heating the material to a high temperature, then quenching it in oil or air to rapidly cool it. This process increases their hardness and strength.

What is the difference between SS 416 and SS 431?

SS 416 is a martensitic stainless steel with 12-14% chromium, providing moderate corrosion resistance and good machinability. SS 431, with 15-17% chromium, is a higher-carbon martensitic steel known for excellent corrosion resistance, strength, and toughness after heat treatment.

What is the equivalent of 431 stainless steel?

431 stainless steel is equivalent to high-carbon martensitic grades like AISI 420, ASTM A276 Type 410, and EN 1.4057 (X17CrNi16-2).

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