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IS 1570 (Part 7):1992 15Mo6H Steel: Specifications & Listings

IS 1570 (Part 7):1992 15Mo6H: 15Mo6H: steel for elevated temperature service (creep resisting steel). Specified in IS 1570 (Part 7):1992.

Category: Alloy Steel
Grade Details
GradeIS 1570 (Part 7):1992 15Mo6H
Standard IS 1570 (Part 7):1992
ApplicationsBoilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
IS 11169 (Part 1) 35Mn6Mo4 IS 11169 (Part 1):1984 Close Alternative
IS 11169 (Part 1) 35Mn6Mo3 IS 11169 (Part 1):1984 Close Alternative
SAE J404 4023 SAE J404:2009 Close Alternative
SAE J404 4027 SAE J404:2009 Close Alternative
SAE J404 4023 SAE J404:2000 Close Alternative
SAE J404 4027 SAE J404:2000 Close Alternative
BS 970 (Part 1) 605H32 BS 970 (Part 1):1983 Close Alternative
BS 970 (Part 1) 605A32 BS 970 (Part 1):1983 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 P S Mo
0.10-0.20 0.10-0.50 0.30-0.80 <=0.045 <=0.045 0.44-0.65
Mechanical Properties
Tensile Strength >=380 MPa
Yield Strength >=205 MPa (0.2 % proof stress)
Elongation >=22%
Condition Tubes, N+T, thickness - (first row of Table 3)

More data from IS 1570 (Part 7):1992

From the standard
Mechanical properties at room temperature 1 rows
ProductHeat treatmentThickness (mm)Hardness (RB)Rp0.2 min (MPa)Rm min (MPa)Rm max (MPa)Elongation min (%)KV (J)Bend test D max
TubesN+T--205380-22--
Rm and elongation printed once for a group of thickness rows are repeated on each row; Rp0.2 'Note 8' is printed as in the standard; in case of dispute the tensile strength value is deciding.
Source: IS 1570 (Part 7):1992, Table 3

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