Production
18CrNiMo7-6 (UNI EN 10084)
Stainless steel is a popular alloy that is widely used in a range of applications due to its excellent corrosion resistance properties and high durability. One of the most commonly used stainless steel grades is DIN 18CrNiMo7-6 1.6587 Gear Steel Bar.
This grade of stainless steel is known for its high strength, toughness, and resistance to wear and tear. It is commonly used in gears, bearings, and other mechanical parts that require high performance under heavy loads and extreme conditions.
Production
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
| EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE |
| 18CrNiMo7-6 | 1.6587 | |||||
Production
CHEMICAL COMPOSITION % (EN 10084)
| STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | C | Si max |
Mn | P max |
S max |
Cr | Mo | Ni | B |
| 18CrNiMo7-6 | 1,6587 | 0,15 - 0,21 | 0,40 | 0,50 - 0,90 | 0,035 | 0,035 | 1,50 - 1,80 | 0,25 - 0,35 | 1,40 - 1,70 | - |
CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION. IT CAN BE PROVIDED WITH AN ADDITION OF LEAD 0,12-0,35% OR SULPHUR CONTROLLED UP UNTIL 0,40% FOR AN IMPROVED MACHINABILITY.
Production
HARDENABILITY (EN 10084)
| STEEL DESIGNATION | RANGE LIMITS | HRC HARDNESS MEASURED FROM THE QUENCHED END OF THE TEST TUBE (MM) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | 1,5 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 20 | 25 | 30 | 35 | 40 | |
| 18CrNiMo7-6+H | 1,6587 | max | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 44 |
43 |
42 | 41 | 41 |
| min | 40 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 32 | 31 | 30 | 29 | 29 | ||
Production
USUALLY AVAILABLE EX STOCK
| M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE |
|---|---|---|---|
| 18CrNiMo7-6 | Soft-annealed | rolled forged turned |
DIN 18CrNiMo7-6 1.6587 Gear Steel Bar Stainless steel grade
Grade 159A - Variant with low sulphur content and high cleanliness demands
Grade 159B - Variant with controlled sulphur content for consistent machinability and +H hardenability
Grade 159Q - Isotropic properties (IQ) and better fatigue strength due to higher cleanliness levels, and a finer size and distribution of non-metallic inclusions
Grade 159X - Variant with controlled sulphur content for consistent machinability and +H hardenability
Grade 159S - Variant with increased sulphur content.
Grade 4761(MoCN216) - Low sulphur variant of Imatra
Q: What is the chemical composition of DIN 18CrNiMo7-6 1.6587 Gear Steel Bar?
A: The chemical composition of this grade of stainless steel is as follows:
- Carbon (C): 0.15-0.21%
- Silicon (Si): 0.15-0.35%
- Manganese (Mn): 0.50-0.80%
- Phosphorus (P): 0.025% max
- Sulfur (S): 0.020% max
- Chromium (Cr): 1.50-1.80%
- Nickel (Ni): 1.40-1.70%
- Molybdenum (Mo): 0.25-0.35%
- Nitrogen (N): 0.15-0.25%
Q: What are the mechanical properties of DIN 18CrNiMo7-6 1.6587 Gear Steel Bar?
A: The mechanical properties of this grade of stainless steel are as follows:
- Tensile strength (Rm): 800-1000 N/mm²
- Yield strength (Rp0.2): 600-800 N/mm²
- Elongation (A5): 10-15%
- Reduction in area (Z): 40-50%
- Hardness: 229-269 HB
Q: What are the applications of DIN 18CrNiMo7-6 1.6587 Gear Steel Bar?
A: This grade of stainless steel is commonly used in gears, bearings, shafts, axles, and other mechanical parts that require high performance under heavy loads and extreme conditions. It is also used in the manufacturing of crane wheels, mining equipment, and other heavy-duty machinery.
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