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42CrMo4 / 4140 / 1.7225 / Scm 440 Alloy Steel Plate Black Surface / Grinded / Machined

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Address: NO.288,YOUYI ROAD ,XI SHAN DISTRICT,WUXI CITY,CHINA

Contact name:Gao Ben

JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

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42CrMo4 / 4140 / 1.7225 / Scm 440 Alloy Steel Plate Black Surface / Grinded / Machined

Country/Region	china
City & Province	wuxi jiangsu

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.

Contact us:

1. Person: Mary Peng

2. Mobile/ Whatsapp: +8615852727954

3. Wechat: sunny-day1111

4. Skype: marypeng1

5. Email: mary@stainlesssteel-sheetmetal.com

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Contact Us

JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

42CrMo4 / 4140 / 1.7225 / Scm 440 Alloy Steel Plate Black Surface / Grinded / Machined

Product Details

product Description

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