Alloy Special Steel Grade 20CrNiMo13-4 / EN 1.6660 Steel Round Bar
Alloy Special Steel Grade 20CrNiMo13-4 / EN 1.6660 Steel Round Bar
Products Specification
| Products Name |
20CrNiMo13-4 / 1.6660 Alloy Steel Round Bar |
| Diameter | 10 - 320mm |
| Length | 6m or custom cutting any length as request |
| Type | Hot Rolled |
| Brand | BAOSTEEL DELTA DONGBEI HUAXI SHAGANG.etc |
| MOQ | 1 Ton |
| Loading Port | Shanghai Port |
| Packing | packing by steel wire rope |
| Deliver time | 5 - 7 days for stock materials |
| Other Grade |
Q195,Q235,10#,20#,35#,45#,Q215,Q345,12Cr1Mov, 15CrMo,304,316,20Cr,40Cr,20CrMo,35CrMo,42CrMo, 40CrNiMo,GCr15,65Mn,50Mn,50Cr,3Cr2W8V,20CrMnTi,5CrMnMo |
| Standard | ASTM GB EN DIN |
| Application | Structure and Industrial |
Regular Standard Size of our 20CrNiMo13-4 Round Bar in Stock
| Standard Diameter | 10 12 15 18 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 120 130 140 150 160 180 200 210 220 230 250 270 300 |
1. 1.6660 Application
• Gears subjected to high stresses, diverse parts subject to wear and fatigue in service.
• In the quenched and tempered condition: ety-critical parts.
2. 1.6660 Characteristics
• High mechanical properties.
• Good fatigue strength.
• After carburising, quenching and tempering, the surface hardness is around 730 HV.
• Good toughness of the carburised layer.
• For some carburising applications, oil quenching can be replaced with gas pressure quenching in order to minimise distortion due to the heat treatment.
3.All Grades Comparison
| DIN | EN |
|---|---|
| 1.6660 | 20NiCrMo13-4 |
4.Quality Standard
EN 10084 2008 Case hardening steels
5. 1.6660 Chemical Composition(%)
| C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| 0.17-0.22 | 0.30-0.60 | 0.40 max | 0.025 max | 0.035 max | 0.80-1.20 | 3.00-3.50 | 0.30-0.50 |
6.Hardness requirements for products delivered in the conditions
| Process | Hardness |
|---|---|
| treated to improve shearability | 277HB max |
| soft annealed | 255HB max |
| treated to hardness range | 207HB-255HB |
| treated to ferrite-pearlite structure and hardness range | 197HB-241HB |
7.Conditions for heat treating test bars and treatment of the steels:
| Process | Temperatures (oC) |
|---|---|
| End quench test | 850 |
| Carburizing | 880-980 |
| Core-hardening | 825-880 |
| Case-hardening | 800-850 |
| Tempering | 150-250 |
8.Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
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