35NCD16 Bars: Steel 35NCD16 – 1.6773 – 36NiCrMo16 – FE-PL2108
What is 35NCD16 material? 35NCD16 is a French-designated (AFNOR) nickel-chromium-molybdenum through-hardening alloy steel with about 4% nickel, 1.8% chromium and 0.35% molybdenum. Its European equivalent is 36NiCrMo16 (1.6773) to EN 10083-3. The high nickel content lets it harden right through large sections – even in air – and gives very high strength with excellent toughness and fatigue resistance after quenching and tempering.
ASC LLP supplies 35NCD16 round bars and bar stock in the annealed or quenched-and-tempered condition, with EN 10204 3.1 certificates and ultrasonic testing on request.
Key Features of 35NCD16 Steel
- Very high strength: about 1,000–1,450 MPa tensile after quenching and tempering, depending on section size – higher in low-temper aerospace conditions.
- Deep hardenability: 4% Ni lets large diameters harden through; it can be oil- or air-hardened, reducing distortion and cracking risk.
- Excellent toughness: good impact values at high strength and at low temperatures.
- Fatigue resistance: suits highly stressed, cyclically loaded parts.
- Machinable when annealed: rough-machine soft, then harden and temper.
Applications of 35NCD16 Round Bars
- Aerospace: landing-gear components, actuator parts and highly stressed fittings – see 35NCD16 for landing gear.
- Automotive & motorsport: crankshafts, transmission shafts, gears and axle parts.
- Heavy engineering: large shafts, couplings, hydraulic and mining-equipment parts.
- Defence: high-strength structural and mechanism components.
35NCD16 Material Chemical Composition
| Element | Composition (wt %) |
| Carbon (C) | 0.32 – 0.39 |
| Silicon (Si) | 0.40 max |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | 0.030 max |
| Sulphur (S) | 0.025 max |
| Chromium (Cr) | 1.60 – 2.00 |
| Molybdenum (Mo) | 0.25 – 0.45 |
| Nickel (Ni) | 3.60 – 4.10 |
35NCD16 Round Bar Sizes & Weights
| Diameter (mm) | Weight (kg/m) | Diameter (mm) | Weight (kg/m) |
| 10 | 0.62 | 60 | 22.2 |
| 20 | 2.47 | 80 | 39.5 |
| 30 | 5.55 | 100 | 61.7 |
| 40 | 9.87 | 150 | 138.7 |
| 50 | 15.4 | 200 | 246.6 |
Round bars from about 10 mm to 400 mm+ diameter in random or cut lengths; peeled, turned, ground or black finish. Forged bars and flats on request.
35NCD16 Equivalent Material
| Standard | Designation | Note |
| AFNOR (France) | 35NCD16 | NF A35-552 / A35-556 |
| EN (Europe) | 36NiCrMo16 | EN 10083-3 |
| Werkstoff No. | 1.6773 | Same steel as 36NiCrMo16 |
| ASD-STAN (aerospace) | FE-PL2108 | 36NiCrMo16 aerospace grade |
| BS 970 (UK) | 835M30 (EN30B) | Nearest UK grade – similar Ni-Cr-Mo, air-hardening |
| AISI / SAE (USA) | 4340 | Similar class only – much lower Ni (≈1.8%) and Cr (≈0.8%) |
There is no exact AISI equivalent. 4340 is often quoted, but 35NCD16 has about twice the nickel and chromium and hardens through much larger sections.
35NCD16 Bars Specifications
| Item | Details |
| Grade | 35NCD16 / 36NiCrMo16 / 1.6773 |
| Standards | NF A35-552, EN 10083-3; aerospace grades on request |
| Delivery condition | Annealed (+A) or quenched & tempered (+QT) |
| Finish | Black, peeled, turned, ground or bright |
| Testing | Chemical, tensile, impact, hardness; ultrasonic testing on request |
| Certificate | EN 10204 3.1; third-party inspection on request |
35NCD16 Steel Heat Treatment
| Process | Typical temperature | Cooling |
| Soft annealing | ≈ 600 – 650 °C | Slow furnace cool |
| Hardening | ≈ 850 – 880 °C | Oil or air |
| Tempering | ≈ 550 – 650 °C (lower for maximum strength) | Air |
Typical values – follow the steel maker’s data or the applicable aerospace specification. Water quenching is not recommended because of the risk of cracking.
35NCD16 Mechanical Properties (Quenched & Tempered)
| Section diameter | Yield strength (min) | Tensile strength |
| ≤ 40 mm | ≈ 1,050 MPa | ≈ 1,250 – 1,450 MPa |
| 40 – 100 mm | ≈ 900 MPa | ≈ 1,100 – 1,300 MPa |
| 100 – 250 mm | ≈ 800 MPa | ≈ 1,000 – 1,200 MPa |
Approximate values for the +QT condition; exact guaranteed values depend on the standard, diameter and tempering temperature and are stated on the mill certificate.
Physical Properties of 35NCD16
| Property | Value (approx.) |
| Density | 7.85 g/cm³ |
| Melting range | ≈ 1,420 – 1,460 °C |
| Modulus of elasticity | ≈ 205 GPa |
| Magnetic | Yes |
Why Buy 35NCD16 Bars from ASC LLP?
- Certified material: 35NCD16 / 36NiCrMo16 bars with EN 10204 3.1 certificates and heat traceability.
- Range: annealed or Q&T round bars, cut pieces and forged bars.
- Testing: ultrasonic, hardness and third-party inspection on request.
- Related grades: 4330V MOD, 4140, 4130 and Custom 465 for stainless high-strength parts.
- Global export with prompt delivery.
35NCD16 Round Bar Price
The price of 35NCD16 round bars depends on diameter, length, quantity, delivery condition (annealed or Q&T), finish and testing requirements. To buy 35NCD16 steel online, send your size, quantity and condition to sales@amardeepsteel.com or call 022-67439130 for a quote.
35NCD16 Round Bar Exporter
ASC LLP exports 35NCD16 round bars to aerospace, automotive and heavy-engineering customers in Europe, the Middle East, Asia and the Americas, with export packing and full documentation.
Frequently Asked Questions – 35NCD16
What is 35NCD16 material?
35NCD16 is a French-designated nickel-chromium-molybdenum through-hardening alloy steel with about 4% Ni, 1.8% Cr and 0.35% Mo. It is used for highly stressed parts such as landing gear, crankshafts and heavy shafts.
What is the equivalent of 35NCD16?
The European equivalent is 36NiCrMo16 (Werkstoff 1.6773) to EN 10083-3, and the aerospace grade is FE-PL2108. The nearest UK grade is 835M30 (EN30B). AISI 4340 is similar in type but has much less nickel and chromium.
What is the chemical composition of 35NCD16?
C 0.32–0.39%, Si 0.40% max, Mn 0.30–0.60%, P 0.030% max, S 0.025% max, Cr 1.60–2.00%, Mo 0.25–0.45% and Ni 3.60–4.10%.
Is 35NCD16 the same as 4340?
No. Both are Ni-Cr-Mo through-hardening steels, but 35NCD16 has about 4% Ni and 1.8% Cr against about 1.8% Ni and 0.8% Cr in 4340, so it hardens through larger sections and can be air-hardened.
How is 35NCD16 heat treated?
It is usually hardened from about 850–880 °C with oil or air cooling and tempered at about 550–650 °C, or lower for maximum strength. Soft annealing at about 600–650 °C is used for machining.
Global Reach
ASC LLP supplies high-strength alloy steel bars to aerospace, automotive, defence and heavy-engineering customers worldwide, with prompt delivery and full documentation. Buyers in the USA, Europe, the Middle East and Asia rely on our 35NCD16 bars for certified material and traceability.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
