Knowledge
2021-05-12 4988
Forged steel- JCG Industrial Co., Ltd. Manufacturing Factory
1. SKD11—Tough chrome steel
Technically improve the casting structure in steel and refine the grains. Compared with Cr12mov, it has improved toughness and wear resistance. Extend the service life of the mold.
2. Q235A (A3 steel)-commonly used carbon structural steel
Main features: high plasticity, toughness, welding performance, cold stamping performance, as well as certain strength and good cold bending performance. Application examples: Widely used in parts and welded structures with general requirements. Such as tie rods, connecting rods, pins, shafts, screws, nuts, ferrules, brackets, machine bases, building structures, bridges, etc. that are not stressed.
3. 40Cr—one of the most widely used steel grades, belonging to alloy structural steel
Main features: After quenching and tempering treatment, it has good mechanical properties, low-temperature impact toughness and low notch sensitivity, good hardenability, high fatigue strength when oil-cooled, and parts with complex shapes when water-cooled. Cracks, cold bending plasticity is medium, good machinability after tempering or quenching and tempering, but poor weldability, easy to produce cracks, should be preheated to 100 ~ 150 ℃ before welding, generally used in quenched and tempered state, it can also be used Carbonitriding and high frequency surface quenching treatment. Application example: After quenching and tempering, it is used to manufacture medium-speed and medium-load parts, such as machine tool gears, shafts, worms, spline shafts, thimble sleeves, etc., after quenching and tempering, high-frequency surface quenching is used to produce high surface hardness , Wear-resistant parts, such as gears, shafts, spindles, crankshafts, spindles, sleeves, pins, connecting rods, screws and nuts, intake valves, etc., after quenching and tempering at medium temperature, they are used to manufacture heavy duty and medium Quick impact parts, such as oil pump rotors, sliders, gears, main shafts, collars, etc., are used to manufacture heavy-duty, low-impact, and wear-resistant parts after quenching and low-temperature tempering, such as worms, spindles, shafts, and sleeves. Rings, etc., where the carbonitriding is located, will produce transmission parts with larger dimensions and higher low-temperature impact toughness, such as shafts, gears, etc.
To
4. HT150—Gray cast iron
Application examples: gear box body, machine tool body, box body, hydraulic cylinder, pump body, valve body, flywheel, cylinder head, pulley, bearing cover, etc.
5. 35—Commonly used materials for various standard parts and fasteners
Main features: proper strength, good plasticity, high cold plasticity, and acceptable weldability. Partial upsetting and drawing can be done in cold state. Low hardenability, application examples after normalizing or quenching and tempering: suitable for manufacturing small cross-section parts, parts that can withstand larger loads: such as crankshafts, levers, connecting rods, hooks and loops, etc., various standard parts and fasteners.
6. 65Mn—commonly used spring steel
Application examples: all kinds of small size flat springs, round springs, seat cushion springs, spring springs, and can also be made into spring rings, valve springs, clutch springs, brake springs, cold rolled coil springs, circlips, etc.
7. 0Cr18Ni9—the most commonly used stainless steel (American steel number 304, Japanese steel number SUS304)
Characteristics and applications: It is the most widely used as stainless heat-resistant steel, such as food equipment, general chemical equipment, and original energy industrial equipment.
8. Cr12—commonly used cold work die steel (American steel number D3, Japanese steel number SKD1)
Characteristics and applications: Cr12 steel is a widely used cold-work die steel, which is a high-carbon and high-chromium ledeburite steel. The steel has good hardenability and good wear resistance; because the carbon content of Cr12 steel is as high as 2.3%, it has poor impact toughness, easy brittleness, and easy formation of uneven eutectic carbides; Cr12 steel Because of its good wear resistance, it is mostly used to manufacture cold punches, punches, blanking dies, cold heading dies, punches and dies of cold extrusion dies, drill sleeves, and drill sleeves that require high wear resistance with less impact load. Gauges, wire drawing dies, stamping dies, thread rolling boards, deep drawing dies and cold press dies for powder metallurgy, etc.
9. DC53—Commonly used cold work die steel
Features and applications: high-strength and toughness cold-work die steel, Japanese Datong Special Steel Co., Ltd. steel grade. After high temperature tempering, it has high hardness, high toughness and good wire cutting performance. Used for precision cold stamping dies, drawing dies, thread rolling dies, cold blanking dies, punches, etc.
10. DCCr12MoV—wear-resistant chromium steel
Compared with Cr12 steel, the carbon content is lower, and the addition of Mo and V improves the unevenness of carbides. MO can reduce carbide segregation and improve hardenability, and V can refine grains and increase toughness. This steel has high hardenability, the cross-section can be completely hardened below 400mm, and it can still maintain good hardness and wear resistance at 300~400℃. It has higher toughness than Cr12, small volume change during quenching, and high Wear resistance and good comprehensive mechanical properties. Therefore, it is possible to manufacture various molds with large cross-sections, complex shapes, and withstand greater impact, such as ordinary drawing dies, punching dies, punching dies, blanking dies, trimming dies, hemming dies, wire drawing dies, cold extrusion dies, cold Cutting scissors, circular saw, standard tools, measuring tools, etc.
11.45—High-quality carbon structural steel, the most commonly used medium-carbon quenched and tempered steel
Main features: The most commonly used medium carbon quenched and tempered steel, with good comprehensive mechanical properties, low hardenability, and easy to crack during water quenching. Small parts should be quenched and tempered, and large parts should be normalized. Application examples: Mainly used to manufacture high-strength moving parts, such as turbine impellers and compressor pistons. Shafts, gears, racks, worms, etc. Pay attention to preheating before welding and annealing for stress relief after welding.
12. D2—High carbon and high chromium cold work steel
It has high hardenability, hardenability, wear resistance, high temperature oxidation resistance, good corrosion resistance after quenching and polishing, small heat treatment deformation, suitable for manufacturing various cold work molds, tools and measuring tools that require high precision and long life , Such as drawing dies, cold extrusion dies, cold shearing knives, etc.
13. SKD11 (SLD)-non-deformation toughness high chromium steel
The increase of the content of MO and V in the steel improves the casting structure in the steel, refines the grains, and improves the morphology of carbides. Therefore, the strength and toughness of this steel (bending strength, deflection, impact toughness, etc.) are better than SKD1, D2 High, wear resistance has also increased, and has higher tempering resistance. Practice has proved that the life of this steel mold is longer than that of Cr12mov. Often manufacturing demanding molds, such as drawing molds, impact grinding wheel molds, etc.
14. DC53—High toughness and high chromium steel
The heat treatment hardness is higher than SKD11. After high temperature (520-530) tempering, it can reach high hardness of 62-63HRC. In terms of strength and wear resistance, DC53 exceeds SKD11. Toughness is twice that of SKD11. The toughness of DC53 rarely cracks and cracks in cold work mold manufacturing. Greatly improve the service life. The residual stress is small. Reduce residual stress after high temperature. Because the cracks and deformation after wire cutting are suppressed. Machinability and abrasiveness exceed SKD11. Used for precision stamping dies, cold forging, deep drawing dies, etc.
15. SKH-9—General-purpose high-speed steel with abrasion resistance and toughness
Used for cold forging dies, strip cutting machines, drills, reamers, punches, etc.
16. ASP-23—Powder metallurgy high speed steel
Carbide distribution is extremely uniform, wear resistance, high toughness, easy processing, stable heat treatment size. Used for various long-life cutting tools such as punches, deep drawing dies, drill dies, milling cutters and shear blades.
17. P20—Generally required size plastic molds
Can be operated by electro-erosion. The factory state is pre-hardened HB270-300. Quenching hardness HRC52.
To
18. 718—High-demand large and small plastic molds
Especially the electro-erosion operation. The factory state is pre-hardened HB290-330. Quenching hardness HRC52.
19. Nak80—High mirror surface, high precision plastic mold
The factory state is pre-hardened HB370-400. Quenching hardness HRC52.
20. S136—Anti-corrosion and mirror-polished plastic mold
The factory state is pre-hardened HB＜215. Quenching hardness HRC52.
21. H13—Ordinary common die-casting mold
Used for die-casting of aluminum, zinc, magnesium and alloys. Hot stamping die, aluminum extrusion die.
22. SKD61—Advanced Die Casting Mould
The electro-ballast remelting technology has significantly improved service life than H13. Hot stamping die, aluminum extrusion die.
23. 8407—Advanced Die Casting Mould
Hot stamping die, aluminum extrusion die.
24. FDAC—Sulfur is added to enhance its ease of cutting
The factory has a pre-hardened hardness of 338-42HRC, which can be directly engraved without quenching and tempering. Used for small batch molds, simple molds, various resin products, sliding parts, mold parts with short delivery time, zipper molds, and glasses frame molds.
Technically improve the casting structure in steel and refine the grains. Compared with Cr12mov, it has improved toughness and wear resistance. Extend the service life of the mold.
2. Q235A (A3 steel)-commonly used carbon structural steel
Main features: high plasticity, toughness, welding performance, cold stamping performance, as well as certain strength and good cold bending performance. Application examples: Widely used in parts and welded structures with general requirements. Such as tie rods, connecting rods, pins, shafts, screws, nuts, ferrules, brackets, machine bases, building structures, bridges, etc. that are not stressed.
3. 40Cr—one of the most widely used steel grades, belonging to alloy structural steel
Main features: After quenching and tempering treatment, it has good mechanical properties, low-temperature impact toughness and low notch sensitivity, good hardenability, high fatigue strength when oil-cooled, and parts with complex shapes when water-cooled. Cracks, cold bending plasticity is medium, good machinability after tempering or quenching and tempering, but poor weldability, easy to produce cracks, should be preheated to 100 ~ 150 ℃ before welding, generally used in quenched and tempered state, it can also be used Carbonitriding and high frequency surface quenching treatment. Application example: After quenching and tempering, it is used to manufacture medium-speed and medium-load parts, such as machine tool gears, shafts, worms, spline shafts, thimble sleeves, etc., after quenching and tempering, high-frequency surface quenching is used to produce high surface hardness , Wear-resistant parts, such as gears, shafts, spindles, crankshafts, spindles, sleeves, pins, connecting rods, screws and nuts, intake valves, etc., after quenching and tempering at medium temperature, they are used to manufacture heavy duty and medium Quick impact parts, such as oil pump rotors, sliders, gears, main shafts, collars, etc., are used to manufacture heavy-duty, low-impact, and wear-resistant parts after quenching and low-temperature tempering, such as worms, spindles, shafts, and sleeves. Rings, etc., where the carbonitriding is located, will produce transmission parts with larger dimensions and higher low-temperature impact toughness, such as shafts, gears, etc.
To
4. HT150—Gray cast iron
Application examples: gear box body, machine tool body, box body, hydraulic cylinder, pump body, valve body, flywheel, cylinder head, pulley, bearing cover, etc.
5. 35—Commonly used materials for various standard parts and fasteners
Main features: proper strength, good plasticity, high cold plasticity, and acceptable weldability. Partial upsetting and drawing can be done in cold state. Low hardenability, application examples after normalizing or quenching and tempering: suitable for manufacturing small cross-section parts, parts that can withstand larger loads: such as crankshafts, levers, connecting rods, hooks and loops, etc., various standard parts and fasteners.
6. 65Mn—commonly used spring steel
Application examples: all kinds of small size flat springs, round springs, seat cushion springs, spring springs, and can also be made into spring rings, valve springs, clutch springs, brake springs, cold rolled coil springs, circlips, etc.
7. 0Cr18Ni9—the most commonly used stainless steel (American steel number 304, Japanese steel number SUS304)
Characteristics and applications: It is the most widely used as stainless heat-resistant steel, such as food equipment, general chemical equipment, and original energy industrial equipment.
8. Cr12—commonly used cold work die steel (American steel number D3, Japanese steel number SKD1)
Characteristics and applications: Cr12 steel is a widely used cold-work die steel, which is a high-carbon and high-chromium ledeburite steel. The steel has good hardenability and good wear resistance; because the carbon content of Cr12 steel is as high as 2.3%, it has poor impact toughness, easy brittleness, and easy formation of uneven eutectic carbides; Cr12 steel Because of its good wear resistance, it is mostly used to manufacture cold punches, punches, blanking dies, cold heading dies, punches and dies of cold extrusion dies, drill sleeves, and drill sleeves that require high wear resistance with less impact load. Gauges, wire drawing dies, stamping dies, thread rolling boards, deep drawing dies and cold press dies for powder metallurgy, etc.
9. DC53—Commonly used cold work die steel
Features and applications: high-strength and toughness cold-work die steel, Japanese Datong Special Steel Co., Ltd. steel grade. After high temperature tempering, it has high hardness, high toughness and good wire cutting performance. Used for precision cold stamping dies, drawing dies, thread rolling dies, cold blanking dies, punches, etc.
10. DCCr12MoV—wear-resistant chromium steel
Compared with Cr12 steel, the carbon content is lower, and the addition of Mo and V improves the unevenness of carbides. MO can reduce carbide segregation and improve hardenability, and V can refine grains and increase toughness. This steel has high hardenability, the cross-section can be completely hardened below 400mm, and it can still maintain good hardness and wear resistance at 300~400℃. It has higher toughness than Cr12, small volume change during quenching, and high Wear resistance and good comprehensive mechanical properties. Therefore, it is possible to manufacture various molds with large cross-sections, complex shapes, and withstand greater impact, such as ordinary drawing dies, punching dies, punching dies, blanking dies, trimming dies, hemming dies, wire drawing dies, cold extrusion dies, cold Cutting scissors, circular saw, standard tools, measuring tools, etc.
11.45—High-quality carbon structural steel, the most commonly used medium-carbon quenched and tempered steel
Main features: The most commonly used medium carbon quenched and tempered steel, with good comprehensive mechanical properties, low hardenability, and easy to crack during water quenching. Small parts should be quenched and tempered, and large parts should be normalized. Application examples: Mainly used to manufacture high-strength moving parts, such as turbine impellers and compressor pistons. Shafts, gears, racks, worms, etc. Pay attention to preheating before welding and annealing for stress relief after welding.
12. D2—High carbon and high chromium cold work steel
It has high hardenability, hardenability, wear resistance, high temperature oxidation resistance, good corrosion resistance after quenching and polishing, small heat treatment deformation, suitable for manufacturing various cold work molds, tools and measuring tools that require high precision and long life , Such as drawing dies, cold extrusion dies, cold shearing knives, etc.
13. SKD11 (SLD)-non-deformation toughness high chromium steel
The increase of the content of MO and V in the steel improves the casting structure in the steel, refines the grains, and improves the morphology of carbides. Therefore, the strength and toughness of this steel (bending strength, deflection, impact toughness, etc.) are better than SKD1, D2 High, wear resistance has also increased, and has higher tempering resistance. Practice has proved that the life of this steel mold is longer than that of Cr12mov. Often manufacturing demanding molds, such as drawing molds, impact grinding wheel molds, etc.
14. DC53—High toughness and high chromium steel
The heat treatment hardness is higher than SKD11. After high temperature (520-530) tempering, it can reach high hardness of 62-63HRC. In terms of strength and wear resistance, DC53 exceeds SKD11. Toughness is twice that of SKD11. The toughness of DC53 rarely cracks and cracks in cold work mold manufacturing. Greatly improve the service life. The residual stress is small. Reduce residual stress after high temperature. Because the cracks and deformation after wire cutting are suppressed. Machinability and abrasiveness exceed SKD11. Used for precision stamping dies, cold forging, deep drawing dies, etc.
15. SKH-9—General-purpose high-speed steel with abrasion resistance and toughness
Used for cold forging dies, strip cutting machines, drills, reamers, punches, etc.
16. ASP-23—Powder metallurgy high speed steel
Carbide distribution is extremely uniform, wear resistance, high toughness, easy processing, stable heat treatment size. Used for various long-life cutting tools such as punches, deep drawing dies, drill dies, milling cutters and shear blades.
17. P20—Generally required size plastic molds
Can be operated by electro-erosion. The factory state is pre-hardened HB270-300. Quenching hardness HRC52.
To
18. 718—High-demand large and small plastic molds
Especially the electro-erosion operation. The factory state is pre-hardened HB290-330. Quenching hardness HRC52.
19. Nak80—High mirror surface, high precision plastic mold
The factory state is pre-hardened HB370-400. Quenching hardness HRC52.
20. S136—Anti-corrosion and mirror-polished plastic mold
The factory state is pre-hardened HB＜215. Quenching hardness HRC52.
21. H13—Ordinary common die-casting mold
Used for die-casting of aluminum, zinc, magnesium and alloys. Hot stamping die, aluminum extrusion die.
22. SKD61—Advanced Die Casting Mould
The electro-ballast remelting technology has significantly improved service life than H13. Hot stamping die, aluminum extrusion die.
23. 8407—Advanced Die Casting Mould
Hot stamping die, aluminum extrusion die.
24. FDAC—Sulfur is added to enhance its ease of cutting
The factory has a pre-hardened hardness of 338-42HRC, which can be directly engraved without quenching and tempering. Used for small batch molds, simple molds, various resin products, sliding parts, mold parts with short delivery time, zipper molds, and glasses frame molds.