Non-Corrosion Resisting Steel 30NCD16
Technical Data Sheet
Alloy 30NCD16 is nickel-chrome-moly steel with excellent hardenability and good resistance to fatigue and repeated impact. It is used in a wide range of safety-critical parts, gears and crank shafts in both the aerospace and motorsports industries.
| Chemical Composition Limits 4% Ni-Cr-Mo, Alloy Steel, Air Hardening 100 ton, Ruling Section 2.5" |
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| Weight% | C | Si | Mn | P+S max | Cr | Mo | Ni | Others |
| 4S28 | 0.38 - 0.45 | 0.60-0.90 | 0.010 | 1.45-1.80 | 0.70-0.95 | 1.65-2 | 0.30-0.50 | 0.05-0.10 |
| Chemically similar British Specifications BS.970 Pt2. | ||||||||
| Weight% | C | Si | Mn | P+S max | Cr | Mo | Ni | Others |
| 835M30 | 0.26-0.34 | 0.10-0.35 | 0.45-0.75 | P 0.025-0.50 S 0.025-0.040 |
1.10-1.40 | 0.20-0.35 | 3.90-4.30 | - |
| EN30B | 0.26-0.34 | 0.10-0.35 | 0.40-0.60 | - | - | 0.20-0.40 | 3.90-4.30 | - |
| Other Chemically similar Specifications | ||||||||
| Weight% | C | Si | Mn | P+S max | Cr | Mo | Ni | Others |
| AFNOR 30NCD16 F.D.M.A |
0.25-0.35 | 0.10-0.40 | 0.20-0.55 | P 0.030 S 0.025 |
1.20-1.50 | 0.40-0.60 | 3.70-4.30 | - |
| AFNOR 35NCD16 819B |
0.030-0.37 | 0.10-0.40 | 0.30-0.60 | P 0.030 S 0.025 |
1.60-2.00 | 0.30-0.50 | 3.70-4.20 | - |
| WS 1.2766 NiCrMo16 |
0.32-0.38 | 0.15-0.30 | 0.40-0.60 | 0.035 max | 1.20-1.50 | 0.20-0.40 | 3.80-4.30 | - |
Typical Mechanical Properties
| Alloy | Condition | Tensile Strength N/mm² | Yield Strength N/mm² | Elongation % | Impact Strength (KCU) | Hardness HB |
| Alloy 30NCD16 | Annealed | - | - | - | - | 235 |
| Alloy 30NCD16 | Quenched & Tempered (200°C) | 1750 | 1250 | 12 | 70 J/cm² | - |
| Alloy 30NCD16 | Quenched & Tempered (625°C) | 1000 | 900 | 19 | 140 J/cm² | - |
Availability
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Specifications
BS 4S28
835M30 / EN30B
WS 1.2766
AFNOR 30NCD16 (FDMA)
AFNOR 35NCD16 (819B)
NiCrMo16
AECMA FE-PL7S
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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
