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1045/C45
1045/C45 steel is defined as medium carbon steel which has 0.4%-0.5% Carbon.It offers good weldability, good machinability, high strength and impact properties,but low in hardenability because of lack of suitable alloying elements.
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1045/C45 steel is defined as medium carbon steel which has 0.4%-0.5% Carbon.It offers good weldability, good machinability, high strength and impact properties,but low in hardenability because of lack of suitable alloying elements,but it can obtain surface hardnesses 54-60HRC after flame or induction hardening. 1045/C45 steel is generally supplied in the black hot forged or normalized condition,and has a tensile strength of 570 -700 MPa with surface hardness170-210HB.
Application
1045 Round bar is used in a variety of industry sectors for applications requiring more strength than low carbon mild steels. Some typical applications for 1045 round bar are axles, bolts, connecting rods, studs, rams, pins, rolls, spindles, ratchets, crankshafts, torsion bars, sockets, worms, light gears, guide rods etc.
Mechanical Property
| Section Size mm | ≤ 16 | 17 – 40 | 41 – 100 |
| Tensile Strength Mpa | 700-850 | 6500-800 | 630-780 |
| Yield Strength Mpa | ≥ 500 | ≥430 | ≥ 370 |
| Elongation in 50mm % | ≥ 14 | ≥ 16 | ≥ 17 |
| Impact Charpy J | ≥ 30 | ≥ 30 | ≥ 30 |
| Hardness HB | 210-245 | 195-235 | 185-230 |

4140/42CrMo4
AISI 4140 alloy steel is a chromium-, molybdenum-, and manganese-containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength.
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42CrMo4 material (1.7225 steel) is an European standard alloy steel, the delivery condition of this steel is mostly tempered and quenched, it has high strength, high toughness, good hardenability, temper brittleness, high fatigue limit, good impact resistance after quenching and tempering, and good low temperature impact toughness. This steel is suitable for the manufacture of large and medium-sized plastic molds requiring a certain degree of strength and toughness, transmission gears, rear axles, load-carrying connecting rods, spring clips and oil deep well drill pipe joints.
Mechanical Property
| Property | Specification |
| Yield Strength | Re > 500 MPa |
| Tensile Strength | Rm: 750-900 MPa |
| Elongation | A > 14% |
| Percent Reduction of Area | Z > 550% |
| Impact Energy | KV > 35 J |

4340/36CrNiMo4
4340 steel is an ultra-high strength medium carbon low alloy steel, which combines deep hardenability, high ductility, toughness and strength, and has high fatigue resistance and creep resistance.
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4340 steel can be used for the requirements of good toughness, high strength, as well as large size of important quenched parts, such as heavy machinery high load shaft, 4340 steel can also be used for operating temperature of more than 400 ℃ rotor shaft and blade, etc.; can also be nitriding treatment, used to manufacture special performance requirements of important parts, after low-temperature tempering or isothermal quenching can be used for ultra-high strength steel.
Application
AISI 4340 is often used in preference to AISI 4140 at the higher strength levels because of its better hardenability and improved CVN impact toughness.
Typical applications include:Heavy-duty axles, shafts, heavy-duty gears,spindles, pins, studs, collets, bolts, couplings,sprockets, pinions, torsion bars, connecting rods,crow bars, conveyor parts,forged hydraulic,forged steel crankshafts etc.
Mechanical Property
| Tensile N/mm 2 | Yield N/mm 2 min. | Elongation min. % | Impact KV min. J 20 ℃ | Surface hardness HB |
| 930-1080 | 740 | 12 | 47 | 269-331 |

4130/25CrMo4
AISI/SAE 4130 steel grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength up to around 315º C (600º F). It shows good overall combinations of strength, toughness and fatigue strength.
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AISI 4130 alloy steel is a medium carbon, low alloy steel in ASTM A29 standard. ASTM 4140 steel is also commonly referred to as a chromoly steel, or chrome moly steel, containing nominally 0.28-0.33% Carbon, 0.8-1.1% Chromium and 0.15-0.25% Molybdenum. It is similar to 4140 steel which has a higher carbon level (0.28-0.33%), giving 4130 material improved weldability, at the expense of through thickness strength. With the proper heat treatment it is also readily machined. Annealing ASTM 4130 alloy steel offers excellent ductility. AISI 4130 steel is usually supplied as round bar commonly in the hardened and tempered condition.
Application
AISI 4130 steel alloy is used primarily in the construction of commercial and military aircraft and ground support systems.
Alloy steel 4130 is an intermediate strength material. Lighter gauges offer lighter weight but still maintain great strength, making it excellent for auto racing and aerospace.
This low alloy 4130 steel is widely used in many applications, and some typical application areas are as follows: Commercial aircraft, aircraft engine mounts,Military aircraft,Automotive,Machine tools,Hydraulic tools,Auto racing,Aerospace,Oil and gas industries – as forged valve bodies and pumps,Agricultural and defense industries etc.
Mechanical Property
| Properties | Metric |
| Tensile strength, ultimate | 560 MPa |
| Tensile strength, yield | 460 MPa |
| Modulus of elasticity | 190-210 GPa |
| Bulk modulus (Typical for steel) | 140 GPa |
| Shear modulus (Typical for steel) | 80 GPa |
| Poissons ratio | 0.27-0.30 |
| Elongation at break (in 50 mm) | 21.50% |
| Reduction of area | 59.6 |
| Hardness, Brinell | 217 |
| Hardness, Knoop (Converted from Brinell hardness) | 240 |
| Hardness, Rockwell B (Converted from Brinell hardness)= | 95 |
| Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.) | 17 |
| Hardness, Vickers (Converted from Brinell hardness) | 228 |
| Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) | 70 |

8620/20CrNiMo
8620 carbon steel can also be used as high tensile steel (uncarburized), which can be used for a variety of applications needing great tensile strength and adequate toughness when properly hardened and tempered. It’s known to have good internal strength, but the strength on the outside is even greater.
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Application
SAE 8620 is suited for applications which require a combination of toughness and wear resistance. it is commonly used in the engineering and automitive industries for toolholders and other such components.Typical application:Arbors, pinions, bushes, camshafts, kingpins,ratchets, gears, splined shafts etc.
Mechanical Property
| Section Size | 11 mm | 30 mm | 63 mm |
| Tensile Strength Mpa | 980-1270 | 780-1080 | 690-930 |
| Yield Strength Mpa | ≥785 | ≥590 | ≥490 |
| Elongation % | ≥9 | ≥10 | ≥11 |
| Impact Charpy J | ≥41 | ≥41 | ≥41 |
| Hardness HB | 290-375 | 235-320 | 205-275 |
| Hardness HRC | 31-41 | 23-35 | 16-29 |

20MnCr5
20MnCr5 steel (1.7147 material) is an European standard carburized steel (case hardening steel) with high strength and toughness and good hardenability. The quenching deformation is small, the low temperature toughness and the machinability are good, but the welding performance is low. It’s generally used after carburizing quenching or quenching and tempering.
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Application
20MnCr5 steel is commonly used in the production of gears due to its ability to be case-hardened and its excellent wear resistance. This makes it well-suited for gears that are exposed to high levels of wear and tear.
Heat Treatment & Mechanical Property
| 20MnCr5/20MnCrS5 | |
| Normalizing,°C | 840-870 |
| Annealing,°C | 650-700 |
| Carburizing,°C | 880-980 |
| Core Hardening,°C | 860-900 |
| Case Hardening,°C | 780-820 |
| Tempering,°C | 150-200 |

D2/1.2379
D2/1.2379 steel is a high-carbon, high-chromium tool steel that belongs to the group of cold-work steels. It was developed in the early 20th century by the German company Thyssen Krupp for use in cutting and forming tools. D2/1.2379 steel is known for its high wear resistance and toughness, which makes it a popular choice for making knives, dies, punches, and other cutting tools.
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Supply Range
- D2 Tool Steel Round Bar: diameter 8mm – 350mm
- D2 Steel Plate: thickness 2mm –300mm x width 200mm – 800mm
- Other dimension according to your requirements
- Surface condition: Black, Rough Machined,Turned or as per given requirements
Application
Typical applications for D2 steel are blanking, forming, and trim dies, gages, slitting cutters, wear parts, lamination dies, thread rolling dies, drawing dies, rotary cutting dies, knurls, bending dies, gages, shear blades, burnishing tools, rolls, machine parts, master parts, injection screw and tip components, seaming rolls, extrusion dies, tire shredders, scrap choppers, Stamping dies, Forming Dies, Punches, Forming Rolls, Knives, slitters, shear blades, Tools, Scrap choppers, Tyre shredders, etc.
Chemical Composition(%)
| Element | D2 | 1.2379 |
| C | 1.4-1.6 | 1.45-1.6 |
| Mn | 0.1-0.6 | 0.2-0.6 |
| P | 0.1-0.6 | 0.03max |
| S | 0.03max | 0.03max |
| Si | 0.03max | 0.1-0.6 |
| Cr | 11.0-13.0 | 11.0-13.0 |
| Mo | 0.70-1.2 | 0.7-1.0 |
| V | 0.50-1.10 | 0.7-1.0 |

H13/1.2344
H13/1.2344 hot work die steel is an air-cooled hardened steel, a multi-purpose chromium molybdenum alloy tool steel, widely used in hot work and cold work tool processing applications with better toughness, better thermal strength and thermal fatigue properties And certain wear resistance heat treatment deformation is small.
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In steel H13/1.2344, the molybdenum and vanadium act as strengthening agents. The chromium content assists die steel H13/1.2344 to resist softening when used at high temperatures. H13/1.2344 die steels offers an excellent combination of shock and abrasion resistance, and possesses good red hardness. It is capable of withstanding rapid cooling and resists premature heat checking. Tool Steel H13/1.2344 has good machinability, good weldability, good ductility, and can be formed by conventional means.
Application
H13/1.2344 hot work die steel is an air-cooled hardened steel, a multi-purpose chromium molybdenum alloy tool steel, widely used in hot work and cold work tool processing applications with better toughness, better thermal strength and thermal fatigue properties And certain wear resistance heat treatment deformation is small.
Chemical Composition(%)
| Element | H13 | 1.2344 |
| C | 0.32-0.45 | 0.35-0.42 |
| Mn | 0.2-0.6 | 0.25-0.5 |
| P | 0.3max | 0.03max |
| S | 0.03max | 0.02max |
| Si | 0.8-1.25 | 0.8-1.2 |
| Cr | 4.75-5.5 | 4.8-5.5 |
| Mo | 0.8-1.2 | 0.85-1.15 |
| V | 1.1-1.75 | 1.1-1.5 |

1.2842
AISI O2 tool steel is an oil hardening tool steel which is supplied in the annealed condition and characterised by its characteristics of offering good durability. Tool steel O2 is with excellent wear resistance and its ability to hold a good cutting edge. 02 steel is a good quality general purpose tool steel often used where the expense of a high carbon high chromium tool steel would not be justified.
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Application
Steel O2 is used as tool steel for universal use, highly stressed plastic moulds, mould inserts for high hardness and abrasive stress, blanking and stamping tools for all types cutting sheet metals up to 6 mm thickness, cold forming dies, cutting and punching tools of all types, shear blades for paper, plastic and metalworking industries, reamers, thread chasers and cutting tools, pressure pads, guide pins, taps, measuring tools, precision calipers and plug gauges, woodworking tools, plastic and rubber compression moulds, deep drawing tools, clipping.
Chemical Composition(%)
| Element | O2 | 1.2842 |
| C | 0.85-0.95 | 0.85-0.95 |
| Mn | 1.4-1.8 | 1.8-2.2 |
| P | 0.03max | 0.03max |
| S | 0.03max | 0.03max |
| Si | 0.05max | 0.1-0.4 |
| Cr | 0.5max | 0.2-0.5 |
| Mo | 0.5max | 0.05-0.2 |
| V | 0.5max | – |

1.2367
1.2367 Chrome–molybdenum–vanadium steel for hardening in oil and in air with very good hardenability, high firmness during the heat and resistance to the tempering, very good toughness and plastic properties during normal and also higher temperatures. Further the steel has a very good resistance to tearing of thermal fatigue and low sensitivity to quick changes of temperature.
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Application
1.2367 steel, also known as X38CrMoV5-3 or AISI H11, is a versatile tool steel widely used in various industries due to its excellent combination of properties, including high hardness, wear resistance, and toughness. Its primary application scenarios include the manufacturing of hot work tooling, die casting and extrusion dies, hot forging tools, injection molding components, automotive and aerospace industry parts, metal forming tools, and general engineering components. Its high-temperature resistance and thermal stability make it an ideal choice for applications involving elevated temperatures and mechanical stresses.
Chemical Composition(%)
| C | Si | Mn | P | S | Cr | Mo | V |
| 0.35-0.40 | 0.30-0.50 | 0.30-0.60 | 0.030 max | 0.030 max | 4.70-5.20 | 2.70-3.30 | 0.40-0.70 |