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JIS G4051 S40C Steel: Supply & Demand

Buyer RFQ demand against seller listing supply for JIS G4051 S40C, broken down by form. Signals are indicative and derived from listings and RFQs.

Last updated: 16 Oct 2026, 12:00 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 73,813 to 75,534
median 75,013
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.

JIS G4051 S40C is a Carbon Steel grade: Japanese medium carbon steel, widely used. Typical applications: Shafts, gears, bolts, couplings, machine parts.
Equivalent / Similar Grades (5)
Grade Standard Region
C40 IS 1875 Germany
EN8 BS 970 UK
AISI 1040 SAE USA
IS1875 C40 IS 1875 India
1040 SAE J403 USA
Chemical Composition (%)
C Si Mn S P
0.37-0.43 0.15-0.35 0.60-0.90 <=0.035 <=0.030
Mechanical Properties
Tensile Strength >=570 MPa
Yield Strength >=390 MPa
Elongation >=17%
Hardness <=179 HB