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AISI 4140 Steel: Supply & Demand

Buyer RFQ demand against seller listing supply for AISI 4140, broken down by form. Signals are indicative and derived from listings and RFQs.

Last updated: 16 Oct 2026, 1:00 AM

Live Signal Lifetime
Live Signal: This grade’s supply and demand by form, from listings and RFQs open right now. Use this to act today. For example, “Is there a buyer gap in this grade’s round bar this week?”
Shortage
0
In Demand
0
Healthy
0
Oversupplied
0
Deep Supply
1
Low Activity
0
Form Supply Demand Status Price Band (Rs./MT)
Round Bar 3 0 Deep Supply 104,599 to 105,860
median 105,652
The Round Bar form most recently moved into Deep Supply, 124 days ago.

Disclaimer: All information on this page is indicative only and derived from posted listings and RFQs on M-EX. It does not constitute a market price quote or investment advice. M-EX and GTE make no representations as to accuracy or completeness. Actual activity depends on quantity, quality, payment terms and other commercial factors agreed between buyers and sellers.

AISI 4140 is an Alloy Steel grade: Chrome molybdenum alloy steel, high strength and toughness. Typical applications: Gears, shafts, dies, bolts, crankshafts, tooling.
Equivalent / Similar Grades (11)
Grade Standard Region
42CrMo4 DIN/EN Europe
EN19 BS 970 UK
SCM440 JIS Japan
SAE4140 SAE USA
4137 SAE J404 USA
4142 SAE J404 USA
4145 SAE J404 USA
4150 SAE J404 USA
4135 SAE J404 USA
4140 SAE J404 USA
708A40 BS 970 (Part 1) UK
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
Condition Quenched & Tempered
Tensile Strength 850–1000 MPa
Yield Strength ≥680 MPa
Elongation ≥13%
Hardness 248–302 HB
Impact (Charpy) ≥54 J