SAE 4140 Steel - Specifications, Equivalents & Listings

Forms: Round Bar Forging Category: Alloy Steel

Grade Details

Grade	SAE J404 4140 / SAE 4140
Standard	SAE J404
Description	Chrome molybdenum alloy steel, high strength and toughness
Applications	Gears, shafts, dies, bolts, crankshafts, tooling

Equivalent / Similar Grades

Grade	Standard	Region	Live on M-EX
42CrMo4	DIN/EN	Europe	21 listings, 22 RFQs →
EN19	BS970	UK	19 listings, 15 RFQs →
SCM440	JIS	Japan	0 listings, 3 RFQs →
SAE4140	SAE	USA	16 listings, 17 RFQs →

Market Snapshot

7D Offer Price

▲ +0.5%

15D Offer Price

▲ +0.5%

30D Offer Price

▲ +0.8%

Forging →

Supply, no demand

Round Bar →

Balanced

Chemical Composition (%)

C	Mn	Cr	Mo	Si	S	P
0.38–0.43	0.75–1.00	0.80–1.10	0.15–0.25	0.15–0.35	≤0.040	≤0.035

Mechanical Properties

Typical Available Sizes

Sizes are indicative. Contact seller for exact availability.

Processing:

Active SAE J404 4140 / SAE 4140 Listings on M-EX (For Sale)

SAE J404 4140 / SAE 4140 Round Bar

3.800 MT

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SAE J404 4140 / SAE 4140 Round Bar

3.700 MT

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SAE J404 4140 / SAE 4140 Round Bar

2.400 MT

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No open buyer requirements for SAE J404 4140 / SAE 4140 at this time.