Alloy Tool Steel S1 Round Bars / AISI S1 Rods / SAE S1 Rings

Alloy Tool Steel S1 Round Bars / AISI S1 Rods / SAE S1 Rings

Name: Alloy Tool Steel S1 Round Bars / AISI S1 Rods / SAE S1 Rings
Brand: JAYANT IMPEX
Price: 652.0 INR
Availability: InStock

652.0 INR/Piece

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Product Details:

Standard AISI S1, SAE S1
Finish Bright, Black, Peeled, Polished
Diameter 4 mm to 350 mm
Tolerance H9, H11, or as required
Grade S1
Technique Hot Rolled / Cold Drawn
Application Industrial Manufacturing, Tool & Die Making, Mechanical Engineering
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Alloy Tool Steel S1 Round Bars / AISI S1 Rods / SAE S1 Rings Price And Quantity

Price 652.0 INR/Piece
Minimum Order Quantity 1 Piece

Alloy Tool Steel S1 Round Bars / AISI S1 Rods / SAE S1 Rings Product Specifications

Processing Forged / Rolled / Heat Treated
Specific Use Shock Resistant Tool Applications, Cutting Tools, Cold Work Tooling
Material Alloy Tool Steel S1
Type Round Bars, Rods, Rings
Standard AISI S1, SAE S1
Finish Bright, Black, Peeled, Polished
Diameter 4 mm to 350 mm
Tolerance H9, H11, or as required
Grade S1
Technique Hot Rolled / Cold Drawn
Application Industrial Manufacturing, Tool & Die Making, Mechanical Engineering
Length 1000 mm to 6000 mm (custom sizes available)

Hardness (after heat treatment) 52-58 HRC
Delivery Condition As Rolled, Annealed, or Heat Treated
Tensile Strength Min 1100 MPa (dependent on size and heat treatment)
Shape Round
Packaging Bundled or Wooden box
Impact Resistance High (Specifically designed for shock resistance)
Surface Condition Annealed/Normalized
Yield Strength Min 700 MPa (dependent on size and heat treatment)
Heat Treatment Quenched and Tempered

Product Description

AISI S1 (UNS T41901) is a specialized tungsten-alloyed, shock-resisting tool steel. Known for its incredible combination of high impact resistance and high hardness, it sits comfortably between ultra-tough nickel steels (like W.Nr. 1.2767) and high-wear chromium steels (like D2).

Whether you are sourcing this material as round bars for machining, rods for punches, or forging rings for structural tooling, here is the technical blueprint for AISI S1.

Chemical Composition (Typical Weight %)

The defining feature of S1 is its tungsten (W) content. This addition gives it excellent resistance to softening at elevated temperatures and enhances wear resistance without sacrificing shock toughness.

Carbon (C)	Tungsten (W)	Chromium (Cr)	Silicon (Si)	Manganese (Mn)	Vanadium (V)
0.40 0.55%	1.50 3.00%	1.00 1.80%	0.15 0.40%	0.10 0.40%	0.15 0.30%

Performance Characteristics by Product Form

1. S1 Round Bars & Rods

Typically supplied in the spheroidized annealed condition (max 229 HBW) for ease of machining. Round stock is ideal for manufacturing:

Punches and Chisels: Resists chipping under cyclic impact loading.
Pneumatic Tools: Rod stock is frequently machined into heavy-duty rivet sets and jackhammer tips.
Cold/Hot Shear Blades: The tungsten content helps the cutting edge maintain structural integrity under thermal and mechanical stress.

2. SAE S1 Forged Rings

Forging S1 into rings aligns the grain flow circumferentially, which maximizes radial toughness. These are typically used for:

Forming Rolls & Trimming Dies: Used in manufacturing lines where high impact along the circumference would shatter lower-alloy steels.
Gripper Dies: Used in industrial cold-heading and forging operations.

Heat Treatment Parameters

To unlock its maximum performance, S1 must be heat-treated carefully to avoid decarburization (loss of carbon at the surface):

Preheating: Heat slowly to $650^circtext{C} - 700^circtext{C}$ and equalize.
Austenitizing (Hardening): Raise the temperature to $870^circtext{C} - 920^circtext{C}$ . Hold for 1530 minutes once thoroughly heated.
Quenching: Typically quenched in oil to achieve maximum hardness.
Tempering: Temper immediately. For maximum shock resistance, temper between $200^circtext{C} - 300^circtext{C}$ to reach a working hardness of 54 to 58 HRC.

Global Cross-Reference Equivalents

If you are coordinating procurement with international vendors, you will find AISI S1 marketed under these regional designations:

Werkstoffnummer (Germany): W.Nr. 1.2550
DIN designation: 60WCrV7
AFNOR (France): 55WC7
JIS (Japan): SKS41

Exceptional Shock Resistance

S1 Tool Steel is especially valued for its superior shock resistance, making it the material of choice for applications involving high impact, such as hammers, chisels, and forging dies. Its balanced composition allows it to absorb heavy loads without fracturing, ensuring durability and long service life even under the most challenging industrial conditions.

Versatile Processing and Finishing Options

Whether you require hot rolled, cold drawn, forged, or heat treated products, Alloy Tool Steel S1 offers multiple processing techniques to suit your exact needs. The availability in several surface finishes-bright, black, peeled, and polished-provides flexibility for varied manufacturing environments and aesthetic preferences.

FAQ's of Alloy Tool Steel S1 Round Bars / AISI S1 Rods / SAE S1 Rings:

Q: How is Alloy Tool Steel S1 suitable for shock-resistant tool applications?

A: Alloy Tool Steel S1 is formulated with specific alloying elements to maximize shock resistance and toughness, making it ideal for tools subjected to high impact, such as cold work tooling, chisels, and punches. Its ability to withstand repeated shocks without chipping or cracking distinguishes it from other tool steels.

Q: What processes are used to manufacture S1 round bars and rods?

A: S1 round bars and rods are produced by hot rolling or cold drawing, followed by processing steps like forging, heat treatment (quenching and tempering), and surface finishing. This ensures consistent mechanical properties, controlled hardness (52-58 HRC), and reliable performance across industrial uses.

Q: When should I choose annealed, normalized, or quenched and tempered delivery conditions?

A: Annealed or normalized S1 products are easily machinable and suitable for further processing, while quenched and tempered items are ready for immediate use where high hardness and strength are needed. The choice depends on your fabrication requirements and whether post-purchase machining or forming is expected.

Q: Where are S1 Steel round bars and rods typically utilized?

A: These products are widely used in tool and die making, mechanical engineering, cutting tool production, and cold work tooling industries. Their high impact resistance and strength make them well-suited for components exposed to repeated stress and shock loads.

Q: What are the packaging options for S1 round bars and rods?

A: Alloy Tool Steel S1 products are securely packaged either in bundles or wooden boxes to prevent damage during transit. This ensures the material maintains its surface quality and arrives in perfect condition, meeting the needs of dealers, exporters, and manufacturers alike.

Q: How does the hardness and strength of S1 steel benefit industrial users?

A: With a hardness of 52-58 HRC and minimum yield and tensile strengths of 700 MPa and 1100 MPa respectively, S1 steel provides excellent wear resistance and the ability to retain sharp edges under repeated loading, increasing tool longevity and operational efficiency.

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