SAE1020B/10B20 cold heading steel hot-rolled coil

The hot-rolled coil of SAE1020B cold heading steel is a high-quality steel product, mainly used for manufacturing high-grade cold-formed fasteners, special-shaped parts, etc. in industries such as manufacturing, automotive, electronics, and machinery. Its production process includes two steps: hot rolling and cold heading. Hot rolling endows it with good plasticity and toughness, while cold heading can further improve its dimensional accuracy and surface quality.

The mechanical properties of the hot-rolled coil of SAE1020B cold heading steel hot-rolled coil:

1.Tensile strength: ≥ 450MPa. The relatively high tensile strength ensures that the steel has sufficient strength to withstand external forces after cold heading forming.

2.Yield strength: ≥ 275MPa. The yield strength reflects the stress when the steel begins to produce plastic deformation. An appropriate yield strength enables the steel to undergo plastic deformation smoothly during the cold heading process without premature fracture.

3.Elongation: ≥ 23%. The elongation reflects the plastic deformation ability of the steel. A higher elongation means that the steel can withstand a large amount of deformation without breaking during the cold heading process, which is beneficial to the cold heading forming process.

4.Reduction of area: ≥ 50%. The reduction of area reflects the degree of plastic deformation of the steel when it is stretched and broken. A higher reduction of area indicates that the steel has good toughness and fracture resistance.

5.Impact energy: ≥ 71J. The impact energy is an indicator to measure the toughness of the steel. A higher impact energy indicates that the steel has better energy absorption ability when subjected to impact loads.

6.Energy absorption ability, and it is not prone to brittle fracture.

Features and Advantages

Good cold heading performance: It has good plasticity and deformation ability, and can be processed into various shaped parts such as bolts, nuts, rivets, etc. through the cold heading forming process at room temperature.

Balanced strength and toughness: It has a certain strength to meet the force-bearing requirements of parts during use, and also has good toughness to avoid brittle fracture during the cold heading process or during use.

Good welding performance: It is suitable for connection by welding methods such as arc welding and contact welding. The welding quality is high, and the strength and toughness of the welded joint can meet the use requirements.

Good machinability: In the cold-drawn or normalized state, its machinability is better than that in the annealed state, which is convenient for machining and can improve the machining accuracy and surface quality of parts.

Product Advantages

Good cold working performance: SAE1020B cold heading steel hot-rolled coil is easy to be cold headed, and can produce fasteners and special-shaped parts with high dimensional accuracy and good surface quality.

High strength and toughness: This steel has excellent mechanical properties and can meet the use requirements under various complex working conditions.

Good weldability: SAE1020B cold heading steel hot-rolled coil is easy to weld and can be well connected with other steels.

When using the hot-rolled coil of SAE1020B cold heading steel hot-rolled coil, the following points need to be noted:

Select appropriate processing equipment and technology: According to the shape, size and performance requirements of the product, select appropriate processing equipment and process parameters for processing.

Strictly control the chemical composition and heat treatment process: Ensure that the chemical composition and heat treatment process of SAE1020B cold heading steel hot-rolled coil comply with relevant standards and requirements to ensure the quality and performance of the product.

Strengthen quality inspection and monitoring: Strengthen quality inspection and monitoring during the production process, promptly detect and deal with potential quality problems, and ensure the stable and reliable quality of the product.

The hot-rolled coil of SAE1020B cold heading steel hot-rolled coil is a high-quality steel product with a wide application prospect and remarkable product advantages. When using it, attention should be paid to issues such as selecting appropriate processing equipment and technology, strictly controlling the chemical composition and heat treatment process, and strengthening quality inspection and monitoring.

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