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AISI/SAE 4340 Carbon Steel Bar

AISI 4340 alloy steel is a heat treatable low alloy steel containing chromium, nickel and molybdenum. It has high toughness and high strength under heat treatment conditions.

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Classification :

Carbon Steel Bar

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PRODUCT DETAILS

AISI/SAE 4340 Carbon Steel Bar Description

AISI 4340 alloy steel is a heat treatable low alloy steel containing chromium, nickel and molybdenum. It has high toughness and high strength under heat treatment conditions.

Product Parameters

Product Name	AISI/SAE 4340 Carbon Steel Bar
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI, etc.
Common Round Bar Specifications	3.0-50.8 mm, Over 50.8-300mm
Flat Steel Common Specifications	6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm
Hexagon Bar Common Specifications	AF5.8mm-17mm
Square Bar Common Specifications	AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm
Length	1-6meters, Size Accept Custom
Diameter(mm)	Hot Rolling Round Bar	25-600	Cold Rolling Square Bar	6-50.8
	Hot Rolling Square Bar	21-54	Cold Rolling Hexagon Bar	9.5-65
	Cold Rolling Round bar	6-101.6	Forged Rebar	200-1000
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical Composition

Grade	Mn	S	C	P	Si	Cr	Ni
AISI 4340	0.60-0.80	0.035	0.38-0.43	0.04	0.15-0.35	0.70-0.90	1.65-2.00

Mechanical Properties

Grade	Tensile Strength kg f/mm2	Yield Strength kg f/mm2	Elongation %	Hardness HB
AISI 4340	≥ 100	≥90	≥ 16	293-352

Scope of Application

AISI 4340 alloy steel is mainly used for power transmission gears and shafts, aircraft landing gear and other structural parts.

Packing and delivery

Qingdao Senxuanyao Steel Group Co., Ltd. is a leading global supplier specializing in the production and distribution of high-quality steel products and comprehensive supply chain solutions.

The annual steel processing capacity is several million tons, and it is mainly engaged in the research and development, production and sales of carbon steel sheet ,carbon steel coil , carbon steel pipe , stainless steel coil , stainless steel sheet , stainless steel pipe , galvanized steel coil ,galvanized steel sheet , galvanized pipe ,PPGI&PPGL, steel corrugated Roofing sheet, steel profile(angle bar,round bar, channel bar , wire rod ,steel wire , rebar , steel piles,steel rail etc),Aluminium& Copper product and other alloy steel product etc.

With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.

Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner. Warmly welcome you to visit our factory!

Quality Inspection

FACTORY WORKSHOP

CERTIFICATES

QUALITY MANAGEMENT SYSTEM CERTIFICATION

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POWER OF ATTORNEY

CERTIFICATE OF QUALITY MANAGEMENT SYSTEM

POWER OF ATTORNEY

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PARTNERS

APPLICATION FIELD

New Energy

Energy extraction

Precision Manufacturing

Aerospace

FAQ

Q:Does the product have quality inspection before loading?

A: Of course, all our products are strictly quality tested before packing, unqualified products will be destroyed, customers can appoint a third party to inspect the products before loading as well.

Q:Can l go to your factory to visit?

A: Of course, we welcome customers from all over the world to visit our factory

Q:How many countries you already exported to?

A: We have exported to the United States, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana, Somalia and other African countries. We have rich export experience, we are familiar with different market demands and can help customers avoid a lot of trouble.

Q:How long does your delivery time take?

A: Generally speaking, our delivery time is within 7-15 days, if the quantity is very large or special circumstances occur, it may be longer.

Q:lt's my first time to import steel products, can you help me with it?

A: Of course, we have agent to arrange the shipment and we will do it with you.

Q:What product information do l need to provide?

A: Please provide the grade, width, thickness, surface treatment requirements (if you have any) and the quantity you need to purchase.

Carbon Steel Bar

PRODUCT DETAILS

AISI/SAE 4340 Carbon Steel Bar Description

Packing and delivery

Quality Inspection

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