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GOST 1435 U10 vs IS 11169 (Part 1) 20C10BT

Related Material — 65% match based on chemical composition and mechanical property overlap.

GOST 1435 U10 (GOST 1435-1999) and IS 11169 (Part 1) 20C10BT (IS 11169 (Part 1):2022) are both steel grades. GOST 1435 U10 is classified under Tool & Die Steels, while IS 11169 (Part 1) 20C10BT is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. GOST 1435 U10 is typically used for used for chisels, punches, files, woodworking tools, and knives., while IS 11169 (Part 1) 20C10BT is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b). IS 11169 (Part 1) 20C10BT is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, GOST 1435 U10 vs IS 11169 (Part 1) 20C10BT is a 77.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 65%.

Frequently Compared With GOST 1435 U10:
DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 EN ISO 4957 1.2316 EN ISO 683-17 100Cr6 AISI 52100 GB/T 1299 4Cr5MoSiV GOST 5950 3H2W8F GOST 5950 4H5MFS GOST 5950 4H5MFS1 IS 1570 (Part 6) 103T3 GB/T 1299 3Cr2W8V
Match Breakdown
CHEMISTRY MATCH
77.4%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property GOST 1435 U10 IS 11169 (Part 1) 20C10BT
Standard GOST 1435-1999 IS 11169 (Part 1):2022
Category Tool & Die Steels Alloy Steel
C (%) 0.95-1.04 0.17-0.24
Mn (%) 0.17-0.33 0.80-1.15
Si (%) 0.17-0.33 <=0.40
S (%) 0.028 max <=0.035
P (%) 0.03 max <=0.035
B (%) Not specified 0.0008-0.005
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 1435 U10 IS 11169 (Part 1) 20C10BT
Tensile Strength 750-900 MPa Not specified
Yield Strength 450 MPa min Not specified
Elongation 10% min Not specified
Hardness 60-64 HRC Not specified
Typical Applications
GOST 1435 U10
Used for chisels, punches, files, woodworking tools, and knives.
IS 11169 (Part 1) 20C10BT
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
Can GOST 1435 U10 Be Substituted With IS 11169 (Part 1) 20C10BT?
GOST 1435 U10 and IS 11169 (Part 1) 20C10BT 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
GOST 1435 U10
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–3100 mm (110.24–122.05 in)
IS 11169 (Part 1) 20C10BT
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On M-EX Right Now
GOST 1435 U10
2 active listings and RFQs →
IS 11169 (Part 1) 20C10BT
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Frequently Asked Questions
What is the difference between GOST 1435 U10 and IS 11169 (Part 1) 20C10BT?
Different category: GOST 1435 U10 is Tool & Die Steels, IS 11169 (Part 1) 20C10BT is Alloy Steel. IS 11169 (Part 1) 20C10BT specifies B which is not specified for GOST 1435 U10.
Can GOST 1435 U10 be substituted with IS 11169 (Part 1) 20C10BT?
GOST 1435 U10 and IS 11169 (Part 1) 20C10BT 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.