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JIS G4103 SNCM439 Steel: Supply & Demand

Buyer RFQ demand against seller listing supply for JIS G4103 SNCM439, 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 122,540 to 124,821
median 123,014
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 G4103 SNCM439 is an Alloy Steel grade: Japanese Ni-Cr-Mo high strength alloy steel. Typical applications: Crankshafts, gears, heavy duty shafts, aircraft components.
Equivalent / Similar Grades (8)
Grade Standard Region
34CrNiMo6 DIN/EN Europe
EN24 BS 970 UK
AISI 4340 SAE USA
SAE4340 SAE USA
IS 4367 40Ni2Cr1Mo28 IS 4367 India
GOST 4543 40XH GOST 4543 Russia
GB/T 3077 42CrMo GB/T 3077 China
4340 SAE J404 USA
Chemical Composition (%)
C Si Mn Cr Mo Ni
0.36–0.43 0.15–0.35 0.60–0.90 0.60–1.00 0.15–0.30 1.60–2.00
Mechanical Properties
Tensile Strength ≥980 MPa
Yield Strength ≥835 MPa
Elongation ≥12%
Hardness 293–352 HB