As ultra-high-strength low-alloy steel,36NiCrMo16 steel contains 1.8% Cr and 4% Ni elements as strengthening alloy elements as per EN10083 and EN10250 standard.

36NiCrMo16 steel has excellent hardenability due to its high nickel content and appropriate amount of chromium and molybdenum, and parts of general size can be hardened in air.In the quenched and tempered state, it has excellent strength, plasticity and toughness.

36NiCrMo16 steel is often used to make parts that require high strength, torsion and impact resistance, such as machine drive shafts, crankshafts, gears, worms, connecting rods, bolts, nuts, fasteners, etc.

36NiCrMo16 Forged shaft

36NiCrMo16 STEEL CHEMICAL COMPOSITION

StandardGradeCSiMnPSCrNiMo
EN10250
36NiCrMo16/1.6773
0.32-0.39≤0.40.3-0.6≤0.03≤0.0251.6-2.03.6-4.10.25-0.45
EN100830.32-0.39≤0.40.5-0.8≤0.025≤0.0251.6-2.03.6-4.10.25-0.45

36NiCrMo16 STEEL RELATED STANDARD & EQUIVALENT GRADE

China | GB:35Cr2Ni4Mo

France | AFNOR:35NCD16

UK | BS:835M30

36NiCrMo16 STEEL FORGING

  • Initial Forging Temperature:1200-1220℃
  • Final Forging Temperature:850℃
  • Heating Rate:Strictly control the heating speed, which should be uniform and stable to prevent cracking caused by improper heating.
  • Holding Time:Ensure that the material is fully and evenly heated,and the holding time should not be too long or too short.
  • Forging Ratio:above 4:1
  • Post-Forging Treatment:36NiCrMo16 steel is highly sensitive to white spots, and should be in the furnace for dehydrogenation treatment in time after forging.

36NiCrMo16 STEEL HEAT TREATMENT

Critical Temperature for Heat Treatment of 36NiCrMo16 Steel

  • Ac1:670℃
  • Ac3:795℃

Temperature Selection for Conventional Heat treatment for 36NiCrMo16 Steel

  • Soft Annealing:650 – 690°C,Cooling in furnace,hardness below 269 HBW
  • Normalizing:850-880°C
  • Quenching:865-885°C,Medium:Water,Oil,Air
  • Tempering:550-650°C

36NiCrMo16 Steel Mechanical Property in Quenched & Tempered condition

Thickness of ruling section tR
tR≤160mm160< tR ≤330mm330< tR ≤660mm
Re
Min
Mpa
Rm
Min
Mpa
A min,%KV min,JRe
Min
Mpa
Rm
Min
Mpa
A min,%KV min,JRe
Min
Mpa
Rm
Min
Mpa
A min,%KV min,J
ltrltrltrltrltrltr
800100011845228001000118452280010001184522
36nicrmo16 Mechanical Property with different tempering temperature

36NiCrMo16 steel Mechanical Property with Different Tempering temperature

36nicrmo16 Tempering temperature vs hardness

36NiCrMo16 steel Tempering temperature vs Hardness

Jominy Quenching Test Curve For 36NiCrMo16 Steel

Jominy Quenching Test Curve For 36NiCrMo16 Steel

Quenching at 850°C

X:Distance from quenched end,in mm

Y:Hardness,HRC

1: HH level

2: HL level

3: H level

HRC-mmType1.5367911131520253035404550
MIN+H504948484848474747474747474343
MAX575656565656555555555555555554
MIN+HH525151515151505050505050505050
MAX575656565656555555555555555555
MIN+HL504948484848474747474747474747
MAX555453535353525252525252525252

WHAT WE SUPPLY FOR 36NiCrMo16 STEEL

Hot Forged Round bar:Φ80-Φ1000mm

Hot Rolled  Round bar:Φ16-Φ130mm

Hot Forged Square bar: Max Thickness:500mm

Flat bar/Blcoks:Thickness :120-800mm ,Width:120-1500mm

Surface FinishBlack-Forged Black-Rolled Turned   GrindingPolishedPeeledCold Drawn
Tolerance(0,+5mm)(0,+1mm)(0,+3mm)Best h9Best h11Best H11Best H11

36NiCrMo16 Steel shafts quenching

36NiCrMo16 Steel Shaft Quenching