AISI 4140 Alloy Steel Plate & Sheet

Categories	Alloy Steel Plate & Sheet
Brand	fushun
Model	4140
Process	Hot Rolled / Cold Rolled
Surface	Black / Bright
Update Time	Apr 28,2024

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Detail Information

Introduce

AISI 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. Not many grades can match the versatility and usefulness of 4140.

Applications

This alloy finds many applications as forgings for the aerospace and oil and gas industries, along with myriad uses in the automotive, agricultural and defense industries, Typical uses are forged gears and shafts, spindles, fixtures, jigs and collars.

Chemical Component

Grade	C	Si	Mn	P MAX	S MAX	Cr	Mo
4140	0.38-0.43	0.15-0.35	0.75-1.00	0.035	0.035	0.80-1.10	0.15-0.25

Produce Size

Process	Thickness	Width	Length
Hot Rolled	4-30mm	20-1500mm	500-9000mm
Cold Rolled	0.5-4mm	10-1000mm	200-9000mm or Coil

Property

Annealing

AISI 4140 alloy steel is annealed at 872°C (1600°F) followed by slowly cooling in the furnace.

Machinability

AISI 4140 alloy steel has good machinability in the annealed condition.

Welding

AISI 4140 alloy steel can be welded using all conventional techniques. However, the mechanical properties of this steel will be affected if it is welded in the heat-treated condition, and post-weld heat treatment should be performed.

Forming

AISI 4140 alloy steel has high ductility. It can be formed using conventional techniques in the annealed condition. It requires more pressure or force for forming because it is tougher than plain carbon steels.

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