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Q345 Alloy HSLA High Strength Low Alloy Steel 470 - 630 MPa Tensile Strength
| MOQ: | 100KG |
| Price: | Price is negotiated based on the required specifications and quantity |
| Standard Packaging: | Standard export packaging, or packaging as required |
| Delivery Period: | 5-8 working days, depending on the parameters required for negotiation |
| Payment Method: | Payment Terms: Mainly T/T.. L/C, D/A, D/P, |
| Supply Capacity: | 5000 tons per month |
Detail Information
Place of Origin
China
Brand Name
Q345 Alloy
Certification
ISO Certificate
Model Number
Q345 Alloy
Name:
Q345 Alloy
Tensile Strength:
470-630 MPa
Yield Strength:
≥345 MPa
Elongation:
≥21%
Density:
7.85 G/cm³
Hardness:
HRB 80-95
Weldability:
Excellent
Ductility:
Good
Surface Finish:
Smooth
Applications:
Construction, Heavy Machinery, Pipelines, Automotive Parts, Metal Fabrication
Highlight:
Q345 Alloy
,HSLA High Strength Low Alloy Steel
,HSLA Steel 630 MPa
Product Description
Q345 Alloy HSLA High Strength Low Alloy Steel 470 - 630 MPa Tensile Strength
Product Specifications
| Attribute | Value |
|---|---|
| Name | Q345 Alloy |
| Tensile Strength | 470-630 MPa |
| Yield Strength | ≥345 MPa |
| Elongation | ≥21% |
| Density | 7.85 g/cm³ |
| Hardness | HRB 80-95 |
| Weldability | Excellent |
| Ductility | Good |
| Surface Finish | Smooth |
| Applications | Construction, heavy machinery, pipelines, automotive parts, metal fabrication |
Product Overview
Q345 Alloy is a high-strength low-alloy (HSLA) steel known for its superior mechanical properties and versatility, making it suitable for demanding structural applications. This steel grade provides enhanced strength, toughness, and weldability while maintaining good formability and ductility.
Chemical Composition
- Carbon (C): 0.12-0.20% - Provides increased strength and hardness while maintaining good weldability and ductility.
- Manganese (Mn): 1.00-1.60% - Enhances tensile strength and hardness, improving toughness and wear resistance.
- Silicon (Si): ≤0.50% - Aids in deoxidation during steelmaking, resulting in cleaner steel with smoother surface.
- Phosphorus (P): ≤0.045% - Low content avoids brittleness and ensures material remains tough and ductile.
- Sulfur (S): ≤0.050% - Minimizes inclusions for better machinability and overall strength.
Mechanical Properties
- Tensile Strength: 470-630 MPa - Provides significant load-bearing capacity and structural integrity.
- Yield Strength: ≥345 MPa - Withstands substantial stress without permanent deformation.
- Elongation: ≥21% - Good ductility for fabrication processes.
- Density: 7.85 g/cm³ - Balanced ratio of strength to weight.
- Hardness: HRB 80-95 - Supports wear resistance and machinability while retaining flexibility.
Applications
- Construction: Structural beams, columns, and frames for buildings and bridges.
- Heavy Machinery: Components for construction and mining equipment.
- Pipelines: Manufacturing of oil, gas, and fluid transport pipelines.
- Automotive Industry: Production of durable automotive parts.
- Metal Fabrication: Plates, sheets, and structural components.
Summary
Q345 Alloy is a versatile high-strength low-alloy steel offering superior mechanical properties including high tensile and yield strength, good ductility, and excellent weldability. Its balanced composition and robust performance make it ideal for demanding structural and industrial applications across construction, heavy machinery, pipelines, automotive, and metal fabrication industries.
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