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ASTM A240/A240M S31700 vs IS 1570 (Part 7) 11Cr17Ni13W3TiH

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S31700 (ASTM A240/A240M:2025) and IS 1570 (Part 7) 11Cr17Ni13W3TiH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S31700 is typically used for pressure vessels and general applications (plate, sheet and strip), while IS 1570 (Part 7) 11Cr17Ni13W3TiH is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. ASTM A240/A240M S31700 is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 11Cr17Ni13W3TiH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A240/A240M S31700 vs IS 1570 (Part 7) 11Cr17Ni13W3TiH is a 54.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A240/A240M S31700:
EN 10088-1 1.4401 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4845 GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 .- IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
54.4%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A240/A240M S31700 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Standard ASTM A240/A240M:2025 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.08 0.07-0.15
Mn (%) <=2.00 <=1.00
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=0.75 <=1.00
Cr (%) 18.0-20.0 15.5-17.50
Ni (%) 11.0-15.0 12.00-14.50
Mo (%) 3.0-4.0 Not specified
N (%) <=0.10 Not specified
W (%) Not specified 2.5-3.5
Ti (%) Not specified >=4xC, <=0.80
B (%) Not specified <=0.0006
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M S31700 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Tensile Strength >=515 MPa 600-800 MPa
Yield Strength >=205 MPa >=390 MPa (0.2 % proof stress)
Elongation >=35% >=25%
Hardness <=217 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Bars, forgings, pipes, hot cold worked, thickness up to 60 (first row of Table 3)
Typical Applications
ASTM A240/A240M S31700
Pressure vessels and general applications (plate, sheet and strip)
IS 1570 (Part 7) 11Cr17Ni13W3TiH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can ASTM A240/A240M S31700 Be Substituted With IS 1570 (Part 7) 11Cr17Ni13W3TiH?
ASTM A240/A240M S31700 and IS 1570 (Part 7) 11Cr17Ni13W3TiH 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.
On M-EX Right Now
ASTM A240/A240M S31700
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IS 1570 (Part 7) 11Cr17Ni13W3TiH
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S31700 and IS 1570 (Part 7) 11Cr17Ni13W3TiH?
ASTM A240/A240M S31700 specifies Mo, N which are not specified for IS 1570 (Part 7) 11Cr17Ni13W3TiH. IS 1570 (Part 7) 11Cr17Ni13W3TiH specifies W, Ti, B which are not specified for ASTM A240/A240M S31700.
Can ASTM A240/A240M S31700 be substituted with IS 1570 (Part 7) 11Cr17Ni13W3TiH?
ASTM A240/A240M S31700 and IS 1570 (Part 7) 11Cr17Ni13W3TiH 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.