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KS D 3752:2024 SM20C Steel: Specifications & Listings

KS D 3752:2024 SM20C: Korean low-medium carbon steel per KS D3752. Equivalent to JIS S20C and AISI 1020. Good weldability, machinability, and surface hardenability by case hardening.

Forms: Round Bar Category: Carbon Steel
Grade Details
GradeKS D 3752:2024 SM20C
Standard KS D 3752:2024
ApplicationsShafts, pins, keys, bolts, lightly stressed structural components, general engineering parts
Most Active InWest (Gujarat)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
JIS G4051 S20C JIS G4051:2009 Japan 1 listing, 4 RFQs →
AISI 1020 AISI USA 3 listings, 0 RFQs →
SAE J403 1020 SAE J403:2014 USA 3 listings, 0 RFQs →
BS 970 EN3A BS 970:1955 UK 4 listings, 1 RFQ →
SAE J403 1020 SAE J403:2001 USA No activity yet
Supply & Demand by FormSee Full Supply & Demand →
Round Bar →
Low Activity
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
SAE J403 1020 SAE J403:2001 Strong Match
SAE J403 1020 SAE J403:2009 Strong Match
SAE J403 1020 SAE J403:2014 Strong Match
SAE J403 1023 SAE J403:2001 Strong Match
SAE J403 1023 SAE J403:2009 Strong Match
BS 970 (Part 3) 070M20 BS 970 (Part 3):1991 Strong Match
SAE J403 1021 SAE J403:2001 Strong Match
SAE J403 1022 SAE J403:2001 Strong Match
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 S P
0.18-0.23 0.15-0.35 0.30-0.60 <=0.035 <=0.030
Mechanical Properties
Tensile Strength u2265440 MPa
Yield Strength u2265245 MPa
Elongation u226523%
Hardness u2264149 HB
Typical Available Sizes
Round Bar 10mmu2013200mm dia
Flat Bar 16u00d75mmu2013150u00d730mm
Sizes are indicative. Contact seller for exact availability.

Popular forms for this grade:

Round Bar (2)

Active KS D 3752:2024 SM20C Listings on M-EX (For Sale)

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KS D 3752:2024 SM20C Round Bar
1.600 MT
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KS D 3752:2024 SM20C Round Bar
1.500 MT
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Buyer RFQs for KS D 3752:2024 SM20C

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