Forging-Grade Steel Plate

Product Specifications

Technical details and manufacturing context for Forging-Grade Steel Plate

Definition

Forging-grade steel plate is a semi-finished industrial material produced through controlled rolling and heat treatment processes to achieve optimal microstructure for subsequent forging, pressing, and stamping operations. It features enhanced formability, uniform grain structure, and consistent mechanical properties throughout the thickness, ensuring reliable performance during high-stress deformation processes. This material serves as the foundational input for producing complex forged components across automotive, aerospace, heavy machinery, and energy sectors, where structural integrity and fatigue resistance are critical requirements. The plate is available in low-alloy and carbon steel grades, with mechanical properties such as yield strength (345–460 MPa), tensile strength (485–620 MPa), elongation (18–22%), impact toughness (27–40 J), and hardness (150–190 HBW) as per relevant standards. Dimensional options include thickness up to 150–250 mm, width 1500–3000 mm, and length 6000–12000 mm, with flatness tolerance ≤3 mm/m and surface finish Ra 1.6–3.2 μm. Carbon equivalent (0.38–0.45 CE) indicates weldability and hardenability. Operating temperature range is -20 to 200°C, and density is 7.85 g/cm³. These values are reference ranges and must be verified for specific applications. The plate is designed for use in hot forging, pressing, and stamping processes, providing predictable material flow and resistance to cracking. It is not a finished component but a raw material that requires further processing. Buyers should confirm exact specifications, including mechanical properties, dimensions, and compliance with applicable standards, with the legal manufacturer or supplier before procurement.

Working Principle

The plate provides uniform, predictable material behavior under compressive forces during forging and tensile forces during stamping. Its controlled microstructure and consistent mechanical properties allow for controlled flow characteristics that prevent cracking or excessive springback. The material's yield strength and ductility enable it to deform plastically without fracture, while its hardness and toughness ensure resistance to wear and impact during high-stress operations. The flatness and surface finish facilitate proper die contact and reduce friction, contributing to accurate part geometry. The carbon equivalent influences weldability and hardenability, affecting how the material responds to heat treatment and joining processes. Operating temperature affects flow stress and formability, with the specified range suitable for hot working. These characteristics ensure that the plate performs reliably in demanding forging and stamping applications, but actual behavior depends on process parameters and part design.

Common Materials

Low-alloy steel, Carbon steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Yield StrengthRequired	345–460 MPa	Minimum yield strength at 0.2% offsetASTM A572
Tensile StrengthRequired	485–620 MPa	Ultimate tensile strength rangeASTM A572
ElongationRequired	18–22 %	Percentage elongation at fracture in 50mm gauge lengthASTM A370
Impact ToughnessRequired	27–40 J	Charpy V-notch impact energy at specified temperatureASTM E23
Carbon Equivalent	0.38–0.45 CE	Calculated value predicting weldability and hardenabilityEN 1011-2
Maximum Thickness	150–250 mm	Maximum available plate thickness for forging applications
Width	1500–3000 mm	Custom widths available on request
Length	6000–12000 mm	Cut to length available
Flatness Tolerance	≤3 mm/m	Per meter, for precision stampingISO 13919-2
Surface Finish	Ra 1.6–3.2 μm	Smooth surface for die contactISO 4287
Hardness	150–190 HBW	Brinell hardness for forgingISO 6506-1
Operating Temperature	-20–200 °C	For hot forging applications
Density	7.85 g/cm³	Standard carbon steel density

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 alloying elements
Grain Structure Part
Microstructural arrangement affecting mechanical properties and forgeability

Material: Ferrite-pearlite or bainitic microstructure
Surface Scale Optional Part
Oxide layer requiring removal before precision forging operations

Material: Iron oxides (FeO, Fe2O3, Fe3O4)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Forging-Grade Steel Plate.

Manufacturers of Forging-Grade Steel Plate

Manufacturer profiles associated with Forging-Grade Steel Plate.

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Frequently Asked Questions

What is forging-grade steel plate used for?

It is used as a raw material for producing forged components in automotive, aerospace, heavy machinery, and energy sectors. It undergoes further processing such as forging, pressing, or stamping to create parts with complex shapes and high structural integrity.

What are the typical mechanical properties?

Typical properties include yield strength of 345–460 MPa, tensile strength of 485–620 MPa, elongation of 18–22%, impact toughness of 27–40 J, and hardness of 150–190 HBW. These are reference ranges and must be confirmed for the specific grade and thickness.

Can the plate be welded?

The carbon equivalent (0.38–0.45 CE) suggests good weldability, but welding procedures must be qualified according to standards like EN 1011-2. Always consult the manufacturer for recommended welding practices.

What dimensions are available?

Thickness up to 150–250 mm, width 1500–3000 mm, and length 6000–12000 mm. Custom sizes may be available on request. Verify exact dimensions with the supplier.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 1000 MPa (145,000 psi) forging pressure
other spec:	Maximum thickness reduction ratio: 3:1, Minimum bend radius: 2x plate thickness
temperature:	Up to 1200°C (2192°F) for hot forging, ambient to 300°C (572°F) for cold forging

Product Specifications

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