55NiCrMoV6
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Specifications 55NiCrMoV6 Datasheet, Ex-stock 55NiCrMoV6 Chemical, Inventory 55NiCrMoV6 Properties forgings From Melting, ESR & VAR technique, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
DATA SHEET - ALLOY TOOL STEEL DIN 55NiCrMoV6
MATERIAL CATEGORY - Cold work alloy tool steel
Cold work die includes cold punching mould, wire-drawing die, drawing die, coining die, thread rolling die, cold heading die, cold extrusion die, Based on the working condition, cold work die should have the high hardness, strength, abrasion resistance, toughness, hardenability, quenching degree, and other processing property. This kind of alloy tool steel belongs to high carbon alloy steel (carbon mass fraction is over 0.80%), Chromium is key element of alloy with mass fraction below 5% generally.
MATERIAL SPECIFICATIONS - EN ISO 4957: 2000 , DIN 17350 (1980)
PRODUCT DESCRIPTION
The alloy is usually produced by EAF /VD /LF /IFF followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the
buyers' requirements.
Bars are usually supplied bright (peeling or centreless grinding) in the softened = SA condition.
Final heat treatment - heat treatment / spheroidizing annealing
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.50 ~ 0.60
Si (％): 0.10 ~ 0.40
Mn (％): 0.65 ~ 0.95
P (％)≤: 0.030
S (％)≤: 0.030
Cr (％): 0.60 ~ 0.80
Mo (％): 0.25 ~ 0.35
V (％): 0.07 ~ 0.12
Ni (％): 1.50 ~ 1.80
Si (％): 0.10 ~ 0.40
Mn (％): 0.65 ~ 0.95
P (％)≤: 0.030
S (％)≤: 0.030
Cr (％): 0.60 ~ 0.80
Mo (％): 0.25 ~ 0.35
V (％): 0.07 ~ 0.12
Ni (％): 1.50 ~ 1.80
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tenperature /℃: 1050～850
Annealing temperature /℃: 650-710
Hardness after annealing ≤HBW: 240
Annealing temperature /℃: 650-710
Hardness after annealing ≤HBW: 240
Quenching temperature /℃: 830 - 870
Cooling medium: oil cooling
Cooling medium: oil cooling
Common tempering temperature /℃: 160-300
Hardness after tempering at temperature /HRC |100℃: 56
Hardness after tempering at temperature /HRC |100℃: 56
Hardness after tempering at temperature /HRC |200℃: 54
Hardness after tempering at temperature /HRC |300℃: 51
Hardness after tempering at temperature /HRC |400℃: 47
Hardness after tempering at temperature /HRC |400℃: 47
HEAT TREATTMENT PRACTICE
The preheating of measuring and cutting tool steel is spheroidizing annealing, final heat treatment is quenching + low temperature tempering and hardness after heat treatment can reach 60~65HRC. When heat treat tool steel grades consideration should be given to hardening temperature, including ratio of heating, cooling and soaking times which will differ due to factors such as the shape and size of each chemical component. Other considerations during heat treatment include the type of furnace, quenching medium and work piece transfer facilities.
The preheating of measuring and cutting tool steel is spheroidizing annealing, final heat treatment is quenching + low temperature tempering and hardness after heat treatment can reach 60~65HRC. When heat treat tool steel grades consideration should be given to hardening temperature, including ratio of heating, cooling and soaking times which will differ due to factors such as the shape and size of each chemical component. Other considerations during heat treatment include the type of furnace, quenching medium and work piece transfer facilities.
TYPICAL APPLICATIONS
Alloy tool steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,
and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.
Cutting tools
Mechanical parts
Air hammer tools
Piercing tools.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 3mm to 400mm
Plate / Sheet steel / Steel strip: 0.1mm to 300mm
Width: 8mm to 1500mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com.
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