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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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AISI/SAE 4340 Carbon Steel Bar

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Carbon Steel Bar

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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

We have been deeply involved in the fields of infrastructure construction and underground engineering for a long time. Our core products are grouting pipe series and advanced small conduits. We are an indispensable supplier of key materials in tunnels, subways, mines, water conservancy and various construction projects.

Packaging and shipping

FAQ

Q: How long is your delivery time?

A: Generally, if it is in stock, it will take 5-10 days, if it is not in stock, it will take 30 days.

Q: Can we send samples?

A: We can provide samples for the products you are interested in.

Q: How do we ensure quality?

A: We conduct pre-production sample testing, accept third-party or customer inspection, and conduct final inspection before shipment.

Q: How do you ensure long-term relationships?

A: We maintain high quality and competitive prices to benefit our customers. Every client is treated as a friend, we do business with sincerity and strive to build lasting relationships, regardless of origin.

Service Phone

+86 18864878811

metalfactory@jiechuangsteel.com

Address

Liaocheng, Shandong, China

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The company's main product is the hydraulic rotary actuator, which has the advantages of small external dimensions, large drive torque, and precise control of rotation angle

Carbon Steel Bar