Product information of 4140 alloy steel plate

This alloy has high strength, high fatigue strength, toughness, torsional strength, and impact and abrasion resistance. Additionally, 4140 steel is highly ductile when annealed, though it requires more pressure as it is tougher than most carbon steels. 4140 is easily welded, but if this is done after hardening, it will also require a post weld heat treatment. This material is typically used in aerospace, oil, gas, automotive, agricultural, and defense industries, specifically gears, shafts, spindles, fixtures, and collars.

Alloy steel plate production line

KUAIMA steel company has more than ten years of experience in diversified operations and multi-product transactions, involving round bar, ship plate, seamless pipe, plate, coil, wire, bright bar, pipe fittings and a wide range of carbon steel, alloy steel And more product sizes of stainless steel materials, these products we produce meet national and international quality standards, such as ASTM, ASME, DIN, JIS, ISO, etc. The company has 25 production lines for various products, with an annual output of 500,000 tons, and is committed to Provide high-quality steel products and provide supporting services and solutions for global customers. Welcome to KUAIMA steel company.

4140 alloy steel plate chemical composition

C Si Mn P S Cr Ni Mo Cu
0.38~0.45 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.9~1.20 ≤0.30 0.15~0.25 ≤0.30

4140 alloy steel plate mechanical properties

Tensile strength σb (MPa) ≥1080(110)
Yield strength σs (MPa) ≥930(95)
Elongation δ5 (%)   ≥12
Reduction rate of cross-section (%)  ≥45
Impact power Akv (J)  ≥63
Impact toughness value αkv (J/cm2)  ≥78(8)
Hardness ≤217HB

4140 alloy steel plate specification

Product Name

Alloy steel plate

Thickness

8mm ~150mm or at your requirements

Length

1m~12m or at your requirements

surface

Black

Payment term

T/T or L/C

Delivery condition

Q+T

Trade term

FOB/CFR/CIF

Delivery time

7-15 DAYS

Package

According to customers' requirements or export's demands

Port

Shanghai/Tianjin/Qingdao port of China

MOQ

1 Tons

Character

1,high strength and hardenability
2,good plasticity in cold condition
3,high fatigue resistance
4,good combination property
5,high quality and competitive price.

Application

made into ships, vehicle, aircraft, missile,weapons,railways,bridge,pressure vessel,
machine tool,gears in gearbox, gear shaft, cam, worm, claw clutch, etc.

Products

Our products mainly cover steel round bar, steel square bar,steel
flat bar, steel plate, steel sheet, steel coil and steel pipe.Being the top-class
products in China,our products have been used in all kinds of fields,such as aerospace,
electronic information, machine manufacture,petrochemical,automotive,communication,
transportation and medical instruments, etc. Our products are sold all over the world ,
mainly in Asia, South America, and Africa.

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Alloy steel plate application industry

Alloy steel plate are mainly used in chemical, petrochemical, marine engineering, seawater pipelines, seawater desalination and other industries, nuclear engineering, paper and pulp industry

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oil and gas

Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.

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energy

Kuaima Steel serves the entire service cycle of power generation and synchronous activities in design, construction, repair and maintenance.

construction

Kuaima Steel provides comprehensive products and services for infrastructure, bridges, pipelines, etc.

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marine

Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.

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We supply and export alloy steel plate in following countries

Malaysia, United Arab Emirates, Indonesia, Saudi Arabia, Iran, Qatar, India, China, United Kingdom, Singapore, Canada, Thailand, Korea, Turkey, Philippines, Egypt, Germany, Italy, Japan, Russia, Vietnam, Australia, South Africa , Portugal, Morocco, Costa Rica, Kazakhstan, Netherlands, Mexico, Brazil, France, Spain, Nigeria, Bangladesh, Kuwait, Iraq, Ukraine, Poland, Jordan, Romania, Oman, Hong Kong, Venezuela, Colombia, Norway, Chile, Te Trinidad and Tobago, Greece, Czech Republic, Belgium, Sri Lanka, Cyprus, Angola, Myanmar (Burma), United Kingdom, Canada, Korea, Thailand, Netherlands, Spain, Turkey, Australia, Mexico, Pakistan, Vietnam, Brazil, Philippines, France, Taiwan, Poland, South Africa, Russia, Nigeria, Kuwait, Czech Republic, Norway, Romania, Egypt, Oman, Sweden, Belgium, Hong Kong, Israel, Colombia, Switzerland, Denmark, Finland, Argentina, Venezuela, Peru, Ukraine , Chile, Bangladesh, Portugal, Ireland, Austria, Algeria, Greece, Iraq, New Zealand, Slovakia, Hungary, Kazakhstan, Slovenia, Lithuania, Serbia, Sri Lanka, Bahrain, Bulgaria, Morocco, Tunisia, Croatia, Jordan, Ecuador, Te Trinidad and Tobago, Estonia, Azerbaijan, Ghana, Lebanon, Cyprus, Dominican Republic, Latvia, Libya, Costa Rica, Cambodia, Macedonia (FYROM), Belarus, Jamaica, Palestine, Turkmenistan Belarus, Jamaica, Palestine, Turkmenistan Belarus, Jamaica, Palestine, Turkmenistan and other countries

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