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Cold Rolled Hot Rolled Alloy Steel Sheet Black Surface Grinded Machined For Ship

Categories Boiler Alloy Steel Sheet Plate
Brand Name: HDT
Certification: ISO SGS
Place of Origin: China
MOQ: 5T
Delivery Time: 60-75days
Price: 800 - 9000 USD / ton
Supply Ability: About 10000 ton / month
Packaging Details: seaworthy packing for exporting
Payment Terms: L/C, T/T, Western Union
Model Number: Boiler Alloy Steel Sheet Plate
Product Name: Alloy Steel Plate
Standard: AISI,ASTM,BS,DIN,JIS
Technique: Cold Rolled / Hot Rolled
Application: Boiler Plate
Surface treatment: Coated,Galvanized
Width: Customized
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Cold Rolled Hot Rolled Alloy Steel Sheet Black Surface Grinded Machined For Ship


Alloy Steel Plate Black Surface / Grinded / Machined for Application of Ship Plate

Product Description


42crmo4/4140/1.7225/scm 440 alloy steel plate

Equivalent Grades


GBDINAISIJIS
42CrMo1.7225 4140SCM440


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 .
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

Heat treatment


Forging Heat 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.
Product Tags:

pressure vessel plate

  

ship steel plate

  
Quality Cold Rolled Hot Rolled Alloy Steel Sheet Black Surface Grinded Machined For Ship for sale
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