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AISI/SAE 4140 Carbon Steel Bar

4140 is a 1% chromium-molybdenum medium hardenability general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa (condition T). 4140 now have improved machinability, which greatly increases feed and/or speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding.

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AISI/SAE 4140 Carbon Steel Bar

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Carbon Steel Bar

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AISI/SAE 4140 Carbon Steel Bar Description

Product Parameters

Product Name	AISI/SAE 4140 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 4140	0.75-1.00	0.035	0.38-0.43	0.035	0.20-0.35	0.8-1.1	0.15-0.25

Mechanical Properties

Grade	Tensile Strength psi	Yield Strength psi	Elongation %	Hardness HRC
AISI 4140	100k	80k	20	18-22

Scope of Application

SAE 4140 are widely used in most industrial sectors, with a wide range of applications, such as: adapters, spindles, axles, bolts, crankshafts, connecting rods, chuck bodies, chucks, conveyor belt pins and rollers, ejection pins, forks, gears, Guide rods, hydraulic shafts and parts, lathe spindles, logging parts, milling spindles, motor shafts, nuts, clamping rods, various pins, pins, pump shafts, plungers, sleeve, spindle, sprocket, stud bolt, tool holder, torsion bar, worm, etc.

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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Other Products

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