FE-PL75 F.1260 835M30 EN30B 30NiCrMo16-6 1.6747 Hardened Steel
FE-PL75 F.1260 835M30 EN30B 30NiCrMo16-6 DIN1.6747 Hardened Steel
1. 1.6747 Description
1.6747 Alloy special steel is nickel air/oil hardening steel. It achieves a good through hardness with high strength and toughness. It is capable of taking a good polish and is widely used as a plastic Mould-steel. 36NiCrMo16, 35NCD16, 30NCD16 are permanent chromium-nickel-molybdenum alloy construction steels for the most heavy-duty machine parts, construction and equipment, and for aviation and aerospace industries.
These materials (and their substitutes) are characterized by significantly higher nickel content than 36HNM, 34HNM, 38HNM, and thus better tensile strength and yield point. In addition, they exhibit very good hardenability, impact resistance, load, deformation, wear and tensions resistances.
30NiCrMo16 / 1.6747 as the norm itself indicates, has less carbon content. 35NiCrMo16 / 1.2766 grade is classified as a tool steel and is used for the production of special knives or molds for the production of plastics.
2. 1.6747 Application
High Duty gears, pinions, aero engine connecting rods, differential shafts, transmission components, gudgeon pins, heavy roller bearings, breech mechanisms and small arms components , plastic die casting moulds, header dies and die rings.
3.All Grades Comparison
| DIN | BS | EN | ANFOR | UNE | AECMA |
|---|---|---|---|---|---|
| 1.6747 | 835M30 | 30NiCrMo16-6 | 35NCD16 | F.1260 | FE-PL75 |
4.Quality Standard
EN 10083 Steels for quenching and tempering. Technical delivery conditions for alloy steels
5. 1.6747 Chemical Composition(%)
| C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| 0.26-0.33 | 0.50-0.80 | 0.40 max | 0.025 max | 0.025 max | 1.20-1.50 | 3.30-4.30 | 0.30-0.60 |
6.Mechanical Properties(T=20°C if not differently stated)
| Process | Diameter(mm) | Tensile Strength Rm (Mpa) | Yield Strength Rp0.2 (Mpa) | Elongation A5 (%) | Area Reduction Ratio C (%) | Impact Value Kv (J) Room Temperature | Hardness (HB) |
|---|---|---|---|---|---|---|---|
| SOFT ANNEALED | / | 915 max | / | / | / | / | 270 max |
| QUENCHED AND TEMPERED | 16 max | 1080-1230 | 880 min | 10 min | 45 min | / | 318-363 |
| QUENCHED AND TEMPERED | 16-100 | 1080-1230 | 880 min | 10 min | 45 min | 35 min | 318-363 |
| QUENCHED AND TEMPERED | 100-250 | 900-1050 | 790 min | 11 min | 50 min | 35 min | 265-310 |
7.HEAT TREATMENT:
| Process | TEMPERATURE °C | Cooling Medium |
|---|---|---|
| Hot plastic deformation | 850-1100 | / |
| Normalization | 840-870 | air |
| Soft annealing | 640-680 | air |
| Hardening | 840-860 | oil |
| Tempering | 540-630 | air |
8.Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
In the 36NiCrMo16, 35NCD16, 30NCD16, 30NiCrMo16 grades we supply:
- Round, square, hexagonal hot-rolled bars 36NiCrMo16
- Forgings 36NiCrMo16
- Drawn and peeled bars 36NiCrMo16
- Forged square and round bars 36NiCrMo16
- Forged flat bars 36NiCrMo16
List of equivalents and other determinations of 36NiCrMo16 – 1.6773 steel:
6773, 36 NICRMO 16, 35NCD14, 35 NCD 14, 35NICRMO14, 35 NICRMO 14, 34HN3M, 36HNM, 30NCD16, 30 NCD 16, E30NCD16, 35NCD16, 35 NCD 16, AIR 9160/C, 32HN3M, 30NICRMO16-6, 30 NICRMO 16-6, 1.6747, LW 6747, 6747, 36CH2N4MA, 36KH2N4MA, 36H2N4MA, 36Х2Н4МА, 34CHN3M, 34KHN3M, 34ХН3М, ASNA 3133, ASNA 3134, ASNA 3149, ASNA 3181, ASNA 3197, 1.6746, FE-PL75, FDMA, 30NCD16.
