English 
T: +86-0731-85185770
E: enquiry@qilumetal.com
E: enquiry@qilumetal.com
No. 18 Xiangfu Middle Road,Yuhua District, Changsha City
 |
| Quantity: | |
|---|---|
45NiCrMo16 / 1.2767 is a widely used nickel-chromium-molybdenum alloy cold work tool steel according to the German standard DIN EN ISO 4957. It is renowned for its high toughness, excellent case-hardening ability, favorable combination of strength and toughness, and certain wear resistance. With proper heat treatment, this steel achieves a uniform microstructure and stable mechanical properties, making it suitable for large molds under high loads, precision gears, and critical structural components. Due to its outstanding comprehensive performance, equivalent steel grades have been established in many countries, such as AISI 6F7 from American standard ASTM 681, 5CrNi4Mo from Chinese standard GB/T 1299.
Grade 1.2767 contains elevated levels of nickel, chromium, and molybdenum. Nickel is crucial for enhancing toughness and hardenability, particularly ensuring core regions of large-section components achieve satisfactory mechanical properties. Chromium content significantly increases hardenability, strength, and corrosion resistance; molybdenum effectively suppresses temper brittleness, enhances strength, and further improves hardenability. The synergistic effect of these elements makes this steel grade highly suitable for demanding applications requiring high durability, reliability, and excellent impact resistance.
1: Steel equivalent
Country | ISO | Germany | China | USA |
Standard | ISO 4957 | DIN 17350 | GB/T 1299 | ASTM A681 |
Grade | 45NiCrMo16 | 45NiCrMo16/1.2767 | 5CrNi4Mo | 6F7 |
2: Chemical composition
Grade | C | Si | Mn | Cr | Mo | P | S | Ni |
45NiCrMo16/ 1.2767 | 0.40-0.50 | 0.10-0.40 | 0.20-0.50 | 1.20-1.50 | 0.15-0.35 | 0.030Max | 0.030Max | 3.80-4.30 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB285Max |
| Hardening and Tempering (+HT) | HRC52 Min |
| Quenched and tempred (+QT) | HRC28-32(Common Range) |
4: Supply size & Tolerance & Stock size
Product type | Size range | Length |
Hot rolled bar | Φ10-Φ190mm | 2000-5800mm |
Hot forged bar | Φ200-Φ600mm | 2000-5800mm |
Hot rolled plate/sheet | T:10-60mm; W:310-810mm | 2000-5800mm |
Hot forged plate | T:70-250mm; W:310-810mm | 2000-5800mm |
Hot Forged block | T: 260-500mm; W: 300-1000mm | 2000-5800mm |
Surface Finish | Turned | Milled | Grinding(Best) | Polished(Best) | Peeled(Best) | Black Forged | Black Rolled |
Tolerance | +0/+3mm | +0/+3mm | +0/+0.05mm | +0/+0.05mm | +0/+0.1mm | +0/+5mm | +0/+1mm |
Straighness | 1mm/1000mm max. | 3mm/1000mm max. | |||||
For 1.2767 steel, because we don’t use them in domestic market, so there is no stocks for that material.
5: Ultrasonic Test
EN10228-3 class III or Sep 1921-84 D/D
6：Steel making & Forging processing
1): Steel making process:
EF+LF+VD
EAF+LF+VD
EF+LF+VD+ESR
EAF+LF+VD+ESR
2): Forging processing:
Preheat temperature：650℃
Initial temperature: 1050-1150℃
Final temperature: 850℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2767 steel to 830-850℃
Slowly cool in the furnace to below approximately 500°C, then remove for air cooling. Cooling rate ≤ 20 °C/hour.
2): Quenching and tempering:
Heat 1.2767 steel to 840-860℃ in the salt bath furnace
Quench in the Oil
Temper steel at 170-190℃ in the furnace
Cooling in the air.
Above curve in figure is a rough guide to the tempering behaviour of steels.
8：Application
1.2767 is a high-quality nickel-chromium-molybdenum alloy quenched and tempered steel. Its unique combination of properties enables extensive applications across multiple industrial sectors.
1. Mold Manufacturing
Heavy-duty stamping and shearing dies: Used for blanking and shearing thick plates and high-strength steel sheets
Cold heading and cold extrusion dies: Manufacture of high-strength bolts, nuts, pins, and similar components
Forming dies and embossing dies for high-stress applications
2. Critical Structural Components and Tools
High-performance gears and drive shafts: Particularly for heavy-duty mechanical gears and shaft components requiring high core strength and excellent impact toughness
High-strength bolts and fasteners: For critical equipment such as engines and pressure vessels
Gauges, measuring tools, and fixtures: Manufacturing high-precision, high-stability measuring instruments and tooling fixtures
3. Plastic Molds
Injection mold bases: Particularly for large mold bases
Cavities and cores: For processing plastics containing highly abrasive fillers (e.g., glass fiber) or requiring extremely high surface finish standards.
45NiCrMo16 / 1.2767 is a widely used nickel-chromium-molybdenum alloy cold work tool steel according to the German standard DIN EN ISO 4957. It is renowned for its high toughness, excellent case-hardening ability, favorable combination of strength and toughness, and certain wear resistance. With proper heat treatment, this steel achieves a uniform microstructure and stable mechanical properties, making it suitable for large molds under high loads, precision gears, and critical structural components. Due to its outstanding comprehensive performance, equivalent steel grades have been established in many countries, such as AISI 6F7 from American standard ASTM 681, 5CrNi4Mo from Chinese standard GB/T 1299.
Grade 1.2767 contains elevated levels of nickel, chromium, and molybdenum. Nickel is crucial for enhancing toughness and hardenability, particularly ensuring core regions of large-section components achieve satisfactory mechanical properties. Chromium content significantly increases hardenability, strength, and corrosion resistance; molybdenum effectively suppresses temper brittleness, enhances strength, and further improves hardenability. The synergistic effect of these elements makes this steel grade highly suitable for demanding applications requiring high durability, reliability, and excellent impact resistance.
1: Steel equivalent
Country | ISO | Germany | China | USA |
Standard | ISO 4957 | DIN 17350 | GB/T 1299 | ASTM A681 |
Grade | 45NiCrMo16 | 45NiCrMo16/1.2767 | 5CrNi4Mo | 6F7 |
2: Chemical composition
Grade | C | Si | Mn | Cr | Mo | P | S | Ni |
45NiCrMo16/ 1.2767 | 0.40-0.50 | 0.10-0.40 | 0.20-0.50 | 1.20-1.50 | 0.15-0.35 | 0.030Max | 0.030Max | 3.80-4.30 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB285Max |
| Hardening and Tempering (+HT) | HRC52 Min |
| Quenched and tempred (+QT) | HRC28-32(Common Range) |
4: Supply size & Tolerance & Stock size
Product type | Size range | Length |
Hot rolled bar | Φ10-Φ190mm | 2000-5800mm |
Hot forged bar | Φ200-Φ600mm | 2000-5800mm |
Hot rolled plate/sheet | T:10-60mm; W:310-810mm | 2000-5800mm |
Hot forged plate | T:70-250mm; W:310-810mm | 2000-5800mm |
Hot Forged block | T: 260-500mm; W: 300-1000mm | 2000-5800mm |
Surface Finish | Turned | Milled | Grinding(Best) | Polished(Best) | Peeled(Best) | Black Forged | Black Rolled |
Tolerance | +0/+3mm | +0/+3mm | +0/+0.05mm | +0/+0.05mm | +0/+0.1mm | +0/+5mm | +0/+1mm |
Straighness | 1mm/1000mm max. | 3mm/1000mm max. | |||||
For 1.2767 steel, because we don’t use them in domestic market, so there is no stocks for that material.
5: Ultrasonic Test
EN10228-3 class III or Sep 1921-84 D/D
6：Steel making & Forging processing
1): Steel making process:
EF+LF+VD
EAF+LF+VD
EF+LF+VD+ESR
EAF+LF+VD+ESR
2): Forging processing:
Preheat temperature：650℃
Initial temperature: 1050-1150℃
Final temperature: 850℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2767 steel to 830-850℃
Slowly cool in the furnace to below approximately 500°C, then remove for air cooling. Cooling rate ≤ 20 °C/hour.
2): Quenching and tempering:
Heat 1.2767 steel to 840-860℃ in the salt bath furnace
Quench in the Oil
Temper steel at 170-190℃ in the furnace
Cooling in the air.
Above curve in figure is a rough guide to the tempering behaviour of steels.
8：Application
1.2767 is a high-quality nickel-chromium-molybdenum alloy quenched and tempered steel. Its unique combination of properties enables extensive applications across multiple industrial sectors.
1. Mold Manufacturing
Heavy-duty stamping and shearing dies: Used for blanking and shearing thick plates and high-strength steel sheets
Cold heading and cold extrusion dies: Manufacture of high-strength bolts, nuts, pins, and similar components
Forming dies and embossing dies for high-stress applications
2. Critical Structural Components and Tools
High-performance gears and drive shafts: Particularly for heavy-duty mechanical gears and shaft components requiring high core strength and excellent impact toughness
High-strength bolts and fasteners: For critical equipment such as engines and pressure vessels
Gauges, measuring tools, and fixtures: Manufacturing high-precision, high-stability measuring instruments and tooling fixtures
3. Plastic Molds
Injection mold bases: Particularly for large mold bases
Cavities and cores: For processing plastics containing highly abrasive fillers (e.g., glass fiber) or requiring extremely high surface finish standards.
