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DIN 17111 35S20 vs BS 970 (Part 1) 212M36

Close Alternative — 85% match based on chemical composition and mechanical property overlap.

DIN 17111 35S20 (DIN 17111:1980) and BS 970 (Part 1) 212M36 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Free Machining Steel category. DIN 17111 35S20 is typically used for high volume turned parts, automotive components, while BS 970 (Part 1) 212M36 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6.. DIN 17111 35S20 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while BS 970 (Part 1) 212M36 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, DIN 17111 35S20 vs BS 970 (Part 1) 212M36 is a 85% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 85%.

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 1138 SAE J403 1117 SAE J403 1137 IS 1570 (Part 3) 10C8S10 SAE J403 1117 SAE J403 1118
Match Breakdown
CHEMISTRY MATCH
85%
MECHANICAL MATCH
No shared data
OVERALL
85%
Specifications
Property DIN 17111 35S20 BS 970 (Part 1) 212M36
Standard DIN 17111:1980 BS 970 (Part 1):1983
Category Free Machining Steel Free Machining Steel
C (%) 0.32–0.39 0.32-0.40
Mn (%) 0.50–0.80 1.00-1.40
S (%) 0.15–0.25 0.12-0.20
P (%) ≤0.060 <=0.060
Si (%) Not specified <=0.25
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 BS 970 (Part 1) 212M36
Tensile Strength 500–700 MPa Not specified
Elongation ≥12% Not specified
Hardness 152–207 HB Not specified
Typical Applications
DIN 17111 35S20
High volume turned parts, automotive components
BS 970 (Part 1) 212M36
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
Can DIN 17111 35S20 Be Substituted With BS 970 (Part 1) 212M36?
DIN 17111 35S20 and BS 970 (Part 1) 212M36 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 212M36 is often considered as a substitute for DIN 17111 35S20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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)
BS 970 (Part 1) 212M36
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On M-EX Right Now
DIN 17111 35S20
2 active listings and RFQs →
BS 970 (Part 1) 212M36
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Frequently Asked Questions
What is the difference between DIN 17111 35S20 and BS 970 (Part 1) 212M36?
BS 970 (Part 1) 212M36 specifies Si which is not specified for DIN 17111 35S20.
Can DIN 17111 35S20 be substituted with BS 970 (Part 1) 212M36?
DIN 17111 35S20 and BS 970 (Part 1) 212M36 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 212M36 is often considered as a substitute for DIN 17111 35S20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.