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IS 1570 (Part 4):1988 34C14BT Steel: Specifications & Listings

IS 1570 (Part 4):1988 34C14BT: 34C14BT: boron treated alloy steel with specified chemical composition. Specified in IS 1570 (Part 4):1988.

Category: Carbon Steel
Grade Details
GradeIS 1570 (Part 4):1988 34C14BT
Standard IS 1570 (Part 4):1988
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 11169 (Part 1) 34C14BT IS 11169 (Part 1):2022 India No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
DIN 17204 36Mn5 DIN 17204:1990-11 Strong Match
SAE J403 1536 SAE J403:2014 Strong Match
IS 1570 (Part 4) 26C10BT IS 1570 (Part 4):1988 Strong Match
SAE J403 1536 SAE J403:2001 Strong Match
SAE J403 1536 SAE J403:2009 Strong Match
BS 970 (Part 3) 150M36 BS 970 (Part 3):1991 Strong Match
IS 1570 (Part 4) 21C10BT IS 1570 (Part 4):1988 Close Alternative
BS 970 EN15 BS 970:1955 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 B
0.32-0.37 0.15-0.30 1.20-1.50 0.0005-0.003

More data from IS 1570 (Part 4):1988

From the standard
Hardenability band (end quench test) 16 distances
Distance from quenched end (mm)Upper limit (HRC)Lower limit (HRC)
1.585850
3.105750
4.765649
6.355548
7.935443
9.525337
11.115233
12.75126
15.874622
19.054521
22.224320
25.438-
31.7532-
38.1030-
44.4528-
50.827-
Tentative limits for specified hardenability of boron steels.
Source: IS 1570 (Part 4):1988, Table 12

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