4140 Starting Stainless Steel Round Bars

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MOQ : 50 Kilograms

4140 Starting Stainless Steel Round Bars Specification

Finish
Bright, Black, Polished, Peeled

Standard
ASTM A29/A29M, AISI 4140

Specific Use
Machining, manufacturing components requiring high strength and toughness

Type
Round Bar

Length
Custom lengths available (typically 3m, 6m or as required)

Grade
4140

Diameter
10 mm to 600 mm (custom diameter on request)

Technique
Hot Rolled, Cold Drawn, Peeled or Polished

Processing
Heat treated, Tempered, Annealed

Material
4140 Stainless Steel

Tolerance
H9, H11, H13 or as specified

Application
Machinery, shafts, automotive parts, general engineering

Corrosion Resistance
Moderate

Shape
Round Solid Bar

Machinability
Good (relative rating: 66%)

Hardness
HB 197-237 (Annealed)

Surface Condition
Smooth Surface

Packaging
Bundled, wrapped or as per customer requirement

Elongation
~15% in 50mm

Weldability
Fair (requires preheating and post-weld heat treatment)

Ultimate Tensile Strength
655-850 MPa

Yield Strength
415-560 MPa

Density
~7.85 g/cm3

About 4140 Starting Stainless Steel Round Bars

Introducing our rarefied 4140 Starting Stainless Steel Round Bars, crafted for splendid performance in demanding environments. These scarce bars are highly sought after, offering potent strength and toughness for machinery, shafts, and automotive parts. With a broad diameter range (10 mm to 600 mm) and custom lengths, each round bar boasts a smooth surface and competitive pricing for discerning customers. Available in bright, black, polished, or peeled finishes, these bars adhere to leading standards (ASTM A29/A29M, AISI 4140) and are supported by versatile machining and processing capabilities for high-precision manufacturing.

Key Features and Uses of 4140 Starting Stainless Steel Round Bars

Engineered for robust machine operations, these round bars demonstrate excellent machinability and moderate corrosion resistance. Primarily used for manufacturing strong machine shafts, automotive components, and general engineering parts, they are ideal for both light and heavy-duty industrial applications. Designed for versatility, these bars offer adaptable use types, whether in custom-built machinery or mass production. Their high strength and superb finish make them the preferred starting point for components demanding strength and precision.

Certifications, Samples, and Export Markets for 4140 Stainless Steel Round Bars

Every 4140 Starting Stainless Steel Round Bar is manufactured in compliance with globally recognized standards and delivered with authentication certificates. We offer a transparent sample policy, ensuring you can verify quality before commitment. Our sale price is designed for global competitiveness, and we offer express shipping to ensure swift delivery to your location. We cater to major export markets including the USA, Europe, Asia, and Africa, serving manufacturers, suppliers, and distributors around the world.

FAQ's of 4140 Starting Stainless Steel Round Bars:

Q: How do I request custom diameters or lengths for 4140 Starting Stainless Steel Round Bars?

A: You can specify your required dimensions when placing an order. We offer custom diameters ranging from 10 mm to 600 mm and various lengths (typically 3m, 6m, or as needed) to suit your application's exact requirements.

Q: What is the benefit of selecting 4140 Stainless Steel Round Bars for machining applications?

A: 4140 bars offer superior machinability (relative rating: 66%), robust strength, and a splendid finish, making them ideal for manufacturing critical components requiring reliability and toughness, such as machine shafts and automotive parts.

Q: When should these round bars be used over other grades?

A: Choose 4140 round bars when your application demands a potent combination of high tensile/yield strength, moderate corrosion resistance, and good machinability. They are especially suitable for engineering components exposed to dynamic mechanical stresses.

Q: What packaging options are available for these stainless steel round bars?

A: We offer bundled and wrapped packaging or can accommodate other customer-specific packaging requirements to ensure safe and secure delivery.

Q: Where can the 4140 Starting Stainless Steel Round Bars be shipped?

A: Our round bars are delivered globally, with express shipping options available to major markets, including North America, Europe, Asia, and Africa.

Q: How does the export and sample policy work?

A: Samples can be delivered on request to help you evaluate quality. Our competitive pricing and documentation meet export regulations, ensuring a smooth procurement process worldwide.

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