High-Strength Forging Steel Ingot

Product Specifications

Technical details and manufacturing context for High-Strength Forging Steel Ingot

Definition

High-strength forging steel ingots are semi-finished metal blocks specifically formulated and cast for subsequent hot forging operations. They serve as the primary raw material input in forging supply chains, where they are heated and shaped under pressure to produce high-integrity mechanical parts. These ingots are engineered with controlled chemical compositions and microstructures to withstand severe plastic deformation while developing superior mechanical properties. They represent a crucial intermediate product between raw steel production and finished forged components in industrial manufacturing. The ingots are available in carbon steel and alloy steel grades, with typical carbon content ranging from 0.30% to 0.50% and manganese content from 0.60% to 1.00%, per ASTM A29. Maximum sulfur and phosphorus contents are limited to 0.025% each to ensure forgeability and toughness. Ingot weight ranges from 500 to 20,000 kg, with cross-sectional areas between 200 and 800 mm². After forging and appropriate heat treatment (quenching and tempering at 850–900°C), the material achieves a minimum yield strength of 620 MPa and tensile strength of 800 MPa, with Brinell hardness between 220 and 280 HBW. The recommended forging temperature range is 1050–1250°C. Density is typical for steel at 7.85 g/cm³. These values are reference ranges and must be verified for specific applications. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The ingot is a solid steel block designed to be heated above its recrystallization temperature, typically in the range of 1050–1250°C, and then plastically deformed under compressive forces in forging presses or hammers. This process refines the grain structure and improves mechanical properties. The controlled chemical composition ensures consistent behavior during deformation. After forging, heat treatment such as quenching and tempering at 850–900°C further enhances strength and hardness. The ingot's cross-section and weight are selected based on the final component requirements. Proper heating and deformation parameters are critical to avoid defects. Verification of actual forging parameters and material response is essential for each application.

Common Materials

Carbon Steel, Alloy Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Carbon ContentRequired	0.30–0.50 %	Percentage of carbon in steel compositionASTM A29
Yield StrengthRequired	≥620 MPa	Minimum yield strength after forging processASTM A370
Ingot WeightRequired	500–20000 kg	Standard weight per ingot unit
Cross SectionRequired	200–800 mm²	Area of ingot cross-sectional profile
Manganese Content	0.60–1.00 %	Percentage of manganese alloying elementASTM A29
Maximum SulfurRequired	≤0.025 %	Maximum allowable sulfur content for forgeabilityASTM A29
Forging Temperature Range	1050–1250 °C	Optimal for hot forging.
Tensile Strength	≥800 MPa	After heat treatment.ASTM A370
Hardness	220–280 HBW	Brinell hardness after quenching and tempering.ASTM E10
Density	7.85 g/cm³	Typical for steel.
Maximum Phosphorus	≤0.025 %	Low phosphorus for toughness.ASTM A29
Heat Treatment	850–900 °C	Quenching and tempering temperature.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Steel Matrix Part
Primary metallic structure providing strength and formability

Material: Iron-carbon alloy with controlled additives
Alloying Elements Part
Enhance mechanical properties and forgeability characteristics

Material: Manganese, chromium, molybdenum, vanadium
Deoxidation Products Part
Control oxide inclusions for improved internal quality

Material: Silicon, aluminum compounds

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Strength Forging Steel Ingot.

Manufacturers of High-Strength Forging Steel Ingot

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Frequently Asked Questions

What is a high-strength forging steel ingot used for?

It is used as the raw material for hot forging processes to produce critical mechanical components such as gears, shafts, and connecting rods. The ingot is heated and deformed under pressure to achieve the desired shape and mechanical properties.

What steel grades are available for these ingots?

The ingots are available in carbon steel and alloy steel grades. Specific grade designations are not listed; however, typical compositions include carbon content of 0.30–0.50% and manganese content of 0.60–1.00%, with maximum sulfur and phosphorus of 0.025% each, per ASTM A29.

What are the typical mechanical properties after forging?

After forging and heat treatment (quenching and tempering at 850–900°C), the material typically achieves a minimum yield strength of 620 MPa, tensile strength of 800 MPa, and Brinell hardness of 220–280 HBW. These values are reference ranges and must be verified for specific applications.

How should I verify the suitability of these ingots for my application?

You should consult the legal manufacturer or supplier to confirm that the ingot's chemical composition, dimensions, and mechanical properties meet your requirements. Always verify model-specific values and standards, as the listed parameters are general references.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Not applicable (material property, not pressure-rated component)
other spec:	Yield strength: 250-350 MPa, Carbon content: 0.25-0.35%
temperature:	1200-1250°C (forging temperature range)

Product Specifications

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