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.
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.
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 |
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 |
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 | |||||||||
Application | made into ships, vehicle, aircraft, missile,weapons,railways,bridge,pressure vessel, | |||||||||
Products | Our products mainly cover steel round bar, steel square bar,steel |
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Alloy steel plate are mainly used in chemical, petrochemical, marine engineering, seawater pipelines, seawater desalination and other industries, nuclear engineering, paper and pulp industry
oil and gas
Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.
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.
marine
Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.
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