35NCD16 1.6773 36NiCrMo16 Quenched Tempered Alloy Steel Round Bar
- Model
- 35NCD16 1.6773 36NiCrMo16
Item specifics
- Delivery Condition
- normalised and tempered/softened
Review
Description
35NCD16 1.6773 36NiCrMo16 QT Steel
1. Description and Application
Quench and tempering special NiCrMo steel, almost equivalent to 34NiCrMo16 steel standardized according to UNI7874/7845, characterized by very high tensile strength together with good toughness. It is usable in the hardened and stress relieved state. It can harden in the air up to thicknesses equal to 90 mm. It is suitable to the manufacture of components of maximum thickness equal to 300 mm strongly stressed and even with a complicated geometry (shafts, torsion shafts, axles, levers, connecting rods, rocker arms). To improve the workability at the machines tools it can be booked with the addition of Ca or re-sulphurized (S60,1%).
The use of re-sulphurized steels involves a worsening of the tensile strength characteristics along the transversal, of the impact strength and of the fatigue strength. Advised austenitic grain dimension > 5 according to UNI 3245 (similar to ASTM E 112-82)
Our supply size :
Diameter : 80 to 600 mm ;
Length : 1000 to 9000 mm ;
Our capacity :
Delivery condition : Normalized, or Annealed, or Quenched and Tempered ;
Surface condition : Grounded, or Turned, or Polished
Our advantage :
1. High Quality, Reasonable Price
2. Over 40 Years Experience
3. ISO NQA Certificated Factory
4. Worldwide shipping
5. Emergency Orders and Fast Delivery
2. 35NCD16 All Grades Comparison
DIN | EN | ANFOR |
1.6773 | 36NiCrMo16 | 35NCD16 |
3.Quality Standard
EN 10083 Steels for quenching and tempering. Technical delivery conditions for alloy steels
EN 10250 Open steel die forgings for general engineering purposes. Alloy special steels
4.Chemical Composition(%)
C | Mn | Si | P | S | Cr | Ni | Mo |
0.32-0.39 | 0.50-0.80 | 0.40 max | 0.025 max | 0.025 max | 1.60-2.00 | 3.60-4.10 | 0.25-0.45 |
5. 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 | / | 912 max | / | / | / | / | 269 max |
QUENCHED AND TEMPERED | 16 max | 1250-1450 | 1050 min | 9 min | 40 min | / | 368-424 |
QUENCHED AND TEMPERED | 16-40 | 1250-1450 | 1050 min | 9 min | 40 min | 30 min | 368-424 |
QUENCHED AND TEMPERED | 40-100 | 1100-1300 | 900 min | 10 min | 45 min | 35 min | 324-382 |
QUENCHED AND TEMPERED | 100-160 | 1000-1200 | 800 min | 11 min | 50 min | 45 min | 295-353 |
QUENCHED AND TEMPERED | 160-250 | 1000-1200 | 800 min | 11 min | 50 min | 45 min | 295-353 |
6.HEAT TREATMENT:
Soft Annealing: Heat to 650-680oC, cool slowly. This will produce a maximum Brinell hardness of 269.
Normalizing: Temperature: 850-880oC.
Hardening: Harden from a temperature of 835-865oC, 855-885oC followed by oil or quenching.
Tempering: 550 - 650℃
7.Forging:
Hot forming temperature: 1050-850oC.
8.Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
