Introduction
Carbon tool steel hot-rolled steel sheet, referred to as carbon tool steel hot-rolled sheet, is a kind of carbon tool steel product formed by hot rolling and cutting. Carbon tool steel hot-rolled sheet is a kind of steel with relatively simple process and relatively low price. Carbon tool steel hot-rolled sheet is moderately high in strength, low in plasticity and good in hardenability. It is mainly used in manufacturing tools, measuring tools, dies and other cutting tool parts, as well as components of molding machines and manufacturing plugs; it can also be used in some parts which have higher working conditions and require strength and abrasion resistance but do not require high toughness and die properties during hot deformation.
Classification
Carbon tool steel hot rolled steel sheet is divided into two types according to the national standard GB/T3278-1982. The chemical composition and mechanical properties of the two types are slightly different.
Type A includes GB Grade Y1, Y2, Y3; the carbon content is 0.60-1.05%, the silicon content is 0.15-0.35%, the manganese content is 0.70-1.10%, the phosphorus content is ≤ 0.035%, the sulfur content is ≤ 0.035%, the total content of other elements is ≤ 0.25%, and the mechanical properties are tensile strength ≥ 630MPa, impact energy Akv ≥ 26J.
Type B includes GB Grade Y11, Y12, Y13; the carbon content is 0.90-1.35%, the silicon content is 0.15-0.35%, the manganese content is 0.70-1.10%, the phosphorus content is ≤ 0.035%, the sulfur content is ≤ 0.035%, the total content of other elements is ≤ 0.25%, and the mechanical properties are tensile strength ≥ 690MPa, impact energy Akv ≥ 42J.
Characteristics
Carbon tool steel hot-rolled sheet has moderate high strength and good hardenability after enough plastic deformation, and the formation of pearlite at normal temperature can still satisfy the requirements of certain performance, so it is widely used in making tools, measuring tools and dies. Gauge parts; some of them are also used in manufacturing parts with high working condition and requiring strength and abrasion resistance, but not requiring high toughness and die properties; it has high plasticity during hot deformation, and can be processed into various cold-work components by cold working.
Application
Carbon tool steel hot-rolled sheet has good overall performance and superior cutting performance, excellent wear resistance and relatively low price, and is widely used in tool making and manufacturing wear-resistant parts. It is mainly used in manufacturing tools, measuring tools, dies and other cutting tool parts, as well as components of molding machines and manufacturing plugs; it can also be used in some parts which have higher working conditions and require strength and abrasion resistance but do not require high toughness and die properties during hot deformation.
Conclusion
In conclusion, carbon tool steel hot-rolled sheet is a kind of steel with relatively simple production process and relatively low price. Carbon tool steel hot-rolled sheet is moderately high in strength, low in elasticity and good in hardenability. It is mainly used in making tools and measuring tools and manufacturing wear-resistant parts. It is widely used in tool making and manufacturing wear-resistant parts.
