42CrMo4 4140 1.7225 Scm 440 Cold Rolled Steel Channel Black Surface Grinded Machined
Brand Name:HDT
Certification:ISO SGS
Model Number:42CrMo1.7225 4140SCM440
Minimum Order Quantity:5T
Delivery Time:60-75days
Payment Terms:L/C, T/T, Western Union
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Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
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Product Details
42CrMo4 / 4140 / 1.7225 / Scm 440 Alloy Steel Plate Black Surface / Grinded / Machined
product Description
42crmo4/4140/1.7225/scm 440 alloy steel plate
Equivalent grades
GBDINAISIJIS
42CrMo1.7225 4140SCM440
Chemical Composition
CSiMnCr MoPS
0.38-0.430.40max0.60-0.900.90-1.200.15-0.30≤0.035≤0.035
Available size
Round steel bar 10-800mm
Flat steel bar 10-400mm*200-2200mm
Surface condition
Black surface/ Grinded/ Machined
Hardness
Annealed HBS 217 max
Characteristics
4140 Alloy Steel/SAE 4140 Steel Price is engineering steel supplied
in quenched and tempered conditions. Very good machinability. High
toughness. High creep strength. Repeated impact resistant
capability.
Applications
4140 Alloy Steel/SAE 4140 Steel Price is use to producecomponents
with high requirements on toughness, e.g. gear wheels, pinions,
connecting rods, parts for mechanical engineering .
Heat treatment
ForgingHeat to 1150°C. Hold until uniform. Minimum forging
temperature 850°C.Cool slowly in ashes or sand etc.
AnnealingHeat to 830°C-850°C.Cool in furnace.
NormalisingHeat to 870°C-900°C.Cool in still air.
Stress RelievingAnnealed: Heat to 600°C-650°C.Hardened: Heat to
500°C-550°C.Cool in still air.
HardeningHeat to 830°C-880°C. Quench in oil or polymer.
TemperingHeat to 450°C-700°C cool in still air. NB. Tempering
within the range 200°C-420°C will result in temper brittleness and
should be avoided.
42CrMo4 4140 1.7225 Scm 440 Cold Rolled Steel Channel Black Surface Grinded Machined
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