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42CrMo4 4140 1.7225 Scm 440 Cold Rolled Steel Channel Black Surface Grinded Machined

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ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

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42CrMo4 4140 1.7225 Scm 440 Cold Rolled Steel Channel Black Surface Grinded Machined

Brand Name : HDT

Model Number : 42CrMo1.7225 4140SCM440

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

Product Name : Alloy Steel Plate

Application : Ship Plate

Standard : AISI,ASTM,BS,DIN,JIS

Technique : Cold Rolled / Hot Rolled

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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

42CrMo4 4140 1.7225 Scm 440 Cold Rolled Steel Channel Black Surface Grinded Machined

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.

Product Tags:

pressure vessel plate

boiler plates

42CrMo4 4140 1.7225 Scm 440 Cold Rolled Steel Channel Black Surface Grinded Machined Images

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