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IS 1570 (Part 5):1985 X07Cr18Ni9 Steel: Specifications & Listings

IS 1570 (Part 5):1985 X07Cr18Ni9: X07Cr18Ni9: high alloy, stainless or heat-resisting steel. Specified in IS 1570 (Part 5):1985.

Category: Stainless Steel
Grade Details
GradeIS 1570 (Part 5):1985 X07Cr18Ni9
Standard IS 1570 (Part 5):1985
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 6911 X07Cr18Ni9 IS 6911:1992 India No activity yet
ASTM A959 302 ASTM A959:2011 USA No activity yet
ASTM A959 303 ASTM A959:2011 USA No activity yet
ASTM A959 303Se ASTM A959:2011 USA No activity yet
BS 970 (Part 3) 302S31 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 303S31 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 303S42 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 325S31 BS 970 (Part 3):1991 UK No activity yet
ASTM A276/A276M S30200 ASTM A276/A276M:2017 USA No activity yet
IS 5522 X07Cr18Ni9 IS 5522:2014 India No activity yet
EN 10088-1 X9CrNi18-9 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
BS 970 (Part 3) 302S31 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 302S31 BS 970 (Part 1):1983 Strong Match
EN 10088-1 X9CrNi18-9 EN 10088-1:2014 Strong Match
EN 10088-1 X9CrNi18-9 EN 10088-1:2023 Strong Match
ASTM A276/A276M S30200 ASTM A276/A276M:2017 Strong Match
ASTM A959 302 ASTM A959:2011 Strong Match
ASTM A959 303Se ASTM A959:2011 Strong Match
BS 970 (Part 3) 303S42 BS 970 (Part 3):1991 Strong Match
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 Cr Ni
<=0.15 <=1.0 <=2.0 <=0.045 <=0.030 17.0-19.0 8.0-10.0
Mechanical Properties
Tensile Strength >=515 MPa
Yield Strength >=205 MPa (0.2 % proof stress)
Elongation >=40% (50 mm)
Hardness <=183 HB; <=88 HRB
Condition Annealed, quenched or solution treated plates, sheets and strips (Table 2)

More data from IS 1570 (Part 5):1985

From the standard
Annealed, quenched or solution treated plates, sheets and strips 5 properties
Tensile strength, min
515 MPa
0.2 % proof stress, min
205 MPa
Elongation in 50 mm, min
40%
Brinell hardness, max
183 HB
Rockwell B hardness, max
88 HRB
Source: IS 1570 (Part 5):1985, Table 2
Recommended heat treatment 2 entries
Solution treatment (softening) temperature
1000 to 1150 deg C
Solution treatment quenching medium
water, oil, air
A annealing, S softening, ST solution treatment, Q quenching, T tempering, P patenting.
Source: IS 1570 (Part 5):1985, Table 7

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