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6F7
Qilu
Product Description
AISI 6F7 1.2767 45NiCrMo16 5CrNi4Mo Hot Work Tool Steel
1: DIN 1.2767 Steel Introduction
DIN 1.2767 is a higher carbon version of the standard 4.25% nickel oil hardening steel. It is a good quality tool steel that achieves high impact and compressive strength and is suitable for applications demanding extra wear resistance. With its characteristics of good full harden-ability, good polishability and excellent toughness this cold work tool steel specification is widely used for plastic mould applications.
1.2767 Steel Stock In Warehouse
2: 1.2767 Quality Standard
ISO4957 2000-ENG Tool-Steel.pdf
3: DIN 1.2767 Steel Equivalent
| Country | China | Japan | Germany | USA | UK |
| Standard | GB/T 1299 | JIS G4404 | DIN EN ISO4957 | ASTM A681 | BS 4659 |
| Grade | 5CrNi4Mo | / | 1.2767 | 6F7 | / |
4: DIN 1.2767 Steel Chemical Composition
| Grade | C | Si | Mn | S | NI | Cr | P | Mo | ||||||
| DIN 1.2767 | 0.40 | 0.50 | 0.10 | 0.40 | 0.20 | 0.50 | 0.03 | 3.80 | 4.30 | 1.20 | 1.50 | 0.03 | 0.15 | 0.35 |
| ASTM 6F7 | 0.40 | 0.50 | 0.10 | 0.40 | 0.20 | 0.50 | 0.03 | 3.80 | 4.30 | 1.20 | 1.50 | 0.03 | 0.15 | 0.35 |
5: DIN 1.2767 Steel Mechanical Properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
6: DIN 1.2767 Steel Overviews
| Size | Round | Dia 6-1200mm | |
| Plate/Flat/Block | Thickness 6mm-500mm | ||
| Width 20mm-1000mm | |||
| Process | EAF+LF+VD+Forged+Heat treatment(optional) | ||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | ||
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | ||
| Delivery condition | Forged; Hot rolled; Cold drawn | ||
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | ||
| Payment terms | T/T;L/C;/Money gram/ Paypal | ||
| Trade terms | FOB; CIF; C&F; etc.. | ||
| Packing | Standard Packages, or as Customers Request | ||
| Delivery time | 30-45 days | ||
7: 1.2767 Steel Application
DIN 1.2767 tool steel are suitable for forging tools, dies of all sort, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, piercers, plastic moulds, cutlery dies, shear blades for heavy gauge material, cutting tools, drawing jaws and highly stressed coining tools, etc..
8: 1.2767 Steel Heat Treatment
Forging
Heat the steel slowly and uniformly to 1050°C. Re heat as necessary and avoid working below 850°C After forging cool slowly in furnace or thermoinsulating material.
Annealing
Heat uniformly to 630-650°C. Soak well and cool slowly in the furnace to approximately 600°C then cool in air.
Stress Relieving
When dies produced in 1.2767 tool steel are heavily machined, stabilizing is recommended just before finish machining in order to relieve machining strains. Heat to approximately 650°C. Soak well and allow to cool in air.
Hardening
Pre heat the tool slowly and uniformly to 650-700°C and thoroughly soak. Continue heating to the final hardening temperature of 840-870°C and allow the component to be heated through. Quench the component in oil or cool in air.
Tempering
Slowly heat the 1.2767 tool uniformly and thoroughly at the selected tempering temperatures and hold at heat for one hour per 25mm of total thickness but for a minimum of two hours. Cool in air. 1.2767 tool steel can be hardened by vacuum furnace, gas quench process.
Temperature [°C] 100 200 300 400 500 600
Hardness [HRc] 56 54 50 46 42 38
Heat Treatment
Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each 1.2767 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of tool steels.
Final Grinding
Select the correct grade of wheel in consultation with the grinding wheel manufacturer. Ensure the grinding wheel is in good condition by means of a suitable dressing tool. Wet grinding is a preferable option using a copious supply of coolant. If dry grinding is resorted to then use a very soft wheel.
9: 1.2767 Steel Tolerance
Diameter(mm) | Tolerance | ||
Forged Steel Round Bar | 80-600 | Black Surface:0~+5 | Rough Machined or Turned:0~+3 |
650-1200 | Black Surface:0~+15 | Rough Machined or Turned:0~+3 | |
Hot Rolled Steel Round Bar | 16-310 | Black Surface:0~+1 | Peeled:H11 |
Cold Drawn Steel Round Bar | 6-100 | Black Surface:H11 | Peeled:H11 |
10: Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
