39NiCrMo3 Steel for Quenching and Tempering 1.6510 38NCD4

39NiCrMo3 Steel for Quenching and Tempering 1.6510 38NCD4

Shape: Round, Square, Flat, Block, profiled…

Round: Dia 3mm-1500mm (Cold drawn / Hot rolled / Forged).

Square/Flat: Th 4-120mm x W 4-610mm (Cold drawn / Hot rolled).

Block: Th 100-1500mm x W 100-1600mm (Forged).

Plate: Th 5-400mm x W 1000-2300mm (Hot rolled).

Profiled: According to drawing.

Surface: Smooth, Peeled, Turned, Grinded, Polished, Milling, Black…

MOQ: 2.00-5.0ton.

39NiCrMo3 Steel for Quenching and Tempering 1.6510 38NCD4


39NiCrMo3 Steel with high hardening capacity and good toughness, which allows to achieve optimum mechanical properties with dimensions up to approx. 80mm. 39NiCrMo3 Steel used on heavy-duty machinery parts, automotive accessories, other motor vehicles, engine parts, shafts, etc.

Quality Standard

-DIN EN 10083-3 Steel for quenching and tempering alloy steels.

Steel Grades

EN                                         DIN                                ANFOR

39NiCrMo3                       1.6510                            38NCD4

Chemical Composition(%)

C Si Mn P S Cr Mo Ni
0.35-0.43 0.40 max 0.50-0.80 0.025 max 0.025 max 0.60-1.00 0.15-0.25 0.70-1.00

Mechanical Properties

Heat treatment Diameter
Tensile Strength Rm (Mpa) Yield Strength Rp0.2 (Mpa) Elongation % in 2″ (%) Reduction Of Area (%) Impact Test
Q+T 16 max 980-1180 785 min 11 min 40 min /
Q+T 16-40 930-1130 735 min 11 min 40 min 35 min
Q+T 40-100 880-1080 685 min 12 min 45 min 40 min
Q+T 100-160 830-980 635 min 12 min 50 min 40 min
Q+T 160-250 740-880 540 min 13 min 50 min 40 min

Heat treatment

Process Cooling type Temperature
Normalizing annealing In calm air 830 – 860℃
Softening annealing Slow 650 – 700℃
Hardening  In water or in oil 830 – 850℃
Tempering min. 1h In air 550 – 650℃


1,500 ton per month.


Chemical analysis, Mechnical analysis, Ultrasonic testing, Metallographic, Surface quality and dimension report.


Each bundle of max 3,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.

Mill’s Test Certificate

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.