Post Stock Login Register

JIS G 4104:1979 SCr440 Steel: Specifications & Listings

JIS G 4104:1979 SCr440: SCr440 is a chromium alloy steel with good strength, hardenability, and wear resistance after heat treatment. It is suitable for medium duty power transmission applications.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeJIS G 4104:1979 SCr440
Standard JIS G 4104:1979
ApplicationsUsed in gears, shafts, bolts, spindles, couplings, and machine structural parts.
Most Active InNorth (Punjab, Haryana)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
EN 10083-3 34Cr4 EN 10083-3:2006 Europe 1 listing, 1 RFQ →
SAE J404 5140 SAE J404:2000 USA No activity yet
Supply & Demand by FormSee Full Supply & Demand →
Round Bar →
Low Activity
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
BS 970 (Part 3) 530M40 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 530A40 BS 970 (Part 1):1983 Strong Match
BS 970 (Part 1) 530M40 BS 970 (Part 1):1983 Strong Match
SAE J404 5140 SAE J404:2009 Strong Match
SAE J404 5140 SAE J404:2000 Strong Match
BS 970 (Part 1) 530H40 BS 970 (Part 1):1983 Strong Match
BS 970 (Part 1) 530A36 BS 970 (Part 1):1983 Close Alternative
SAE J404 5130 SAE J404:2009 Close Alternative
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn P S Cr
0.38-0.43 0.15-0.35 0.60-0.85 0.030 max 0.030 max 0.90-1.20
Mechanical Properties
Tensile Strength 800-950 MPa
Yield Strength 590 MPa min
Elongation 13% min
Hardness 230-285 HB

Popular forms for this grade:

Round Bar (2)

Active JIS G 4104:1979 SCr440 Listings on M-EX (For Sale)

+ Create a Listing for this grade

No active JIS G 4104:1979 SCr440 listings at this time.

Register for Alerts

Buyer RFQs for JIS G 4104:1979 SCr440

+ Post an RFQ for this grade
JIS G 4104:1979 SCr440 Round Bar
1.800 MT
View RFQ
JIS G 4104:1979 SCr440 Round Bar
1.600 MT
View RFQ