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DIN 17111 35S20 vs IS 1570 (Part 3) 10C8S10

Minimal Match — 51.5% match based on chemical composition and mechanical property overlap.

DIN 17111 35S20 (DIN 17111:1980) and IS 1570 (Part 3) 10C8S10 (IS 1570 (Part 3):1979) are both steel grades. Both fall under the Free Machining Steel category. DIN 17111 35S20 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while IS 1570 (Part 3) 10C8S10 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, DIN 17111 35S20 vs IS 1570 (Part 3) 10C8S10 is a 77.2% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 51.5%.

Frequently Compared With DIN 17111 35S20:
IS 4432 10C8S10 SAE J403 1138 SAE J403 1141 SAE J403 1117 SAE J403 1137 SAE J403 1137 SAE J403 1137 SAE J403 1138 SAE J403 1117 SAE J403 1118 SAE J403 1117 SAE J403 1118
Match Breakdown
CHEMISTRY MATCH
77.2%
MECHANICAL MATCH
0%
OVERALL
51.5%
Specifications
Property DIN 17111 35S20 IS 1570 (Part 3) 10C8S10
Standard DIN 17111:1980 IS 1570 (Part 3):1979
Category Free Machining Steel Free Machining Steel
C (%) 0.32–0.39 <=0.15
Mn (%) 0.50–0.80 0.60-0.90
S (%) 0.15–0.25 0.08-0.13
P (%) ≤0.060 <=0.060
Si (%) Not specified 0.05-0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property DIN 17111 35S20 IS 1570 (Part 3) 10C8S10
Tensile Strength 500–700 MPa 370-490 MPa
Elongation ≥12% >=24%
Hardness 152–207 HB Not specified
Condition Not specified Hot rolled or normalized bars, billets and forgings (Table 2), ruling sections up to 150 mm
Typical Applications
DIN 17111 35S20
High volume turned parts, automotive components
IS 1570 (Part 3) 10C8S10
Not documented
Key Differences
Can DIN 17111 35S20 Be Substituted With IS 1570 (Part 3) 10C8S10?
DIN 17111 35S20 and IS 1570 (Part 3) 10C8S10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
DIN 17111 35S20
Hex Bar → (2 listings)
Across Flats: 25–25 mm (0.98–0.98 in)
Length: 2900–3100 mm (114.17–122.05 in)
IS 1570 (Part 3) 10C8S10
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On M-EX Right Now
DIN 17111 35S20
2 active listings and RFQs →
IS 1570 (Part 3) 10C8S10
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Frequently Asked Questions
What is the difference between DIN 17111 35S20 and IS 1570 (Part 3) 10C8S10?
IS 1570 (Part 3) 10C8S10 specifies Si which is not specified for DIN 17111 35S20.
Can DIN 17111 35S20 be substituted with IS 1570 (Part 3) 10C8S10?
DIN 17111 35S20 and IS 1570 (Part 3) 10C8S10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.