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ASTM A959 660 vs IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH

Strong Match — 94.7% match based on chemical composition and mechanical property overlap.

ASTM A959 660 (ASTM A959:2011) and IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 660 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. ASTM A959 660 is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A959 660 vs IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH is a 94.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 94.7%.

Frequently Compared With ASTM A959 660:
ASTM A959 .- EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr13H GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH GOST 5632 08X18H10
Match Breakdown
CHEMISTRY MATCH
94.7%
MECHANICAL MATCH
No shared data
OVERALL
94.7%
Specifications
Property ASTM A959 660 IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH
Standard ASTM A959:2011 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
Al (%) <=0.35 <=0.35
B (%) 0.001-0.010 0.003-0.010
C (%) <=0.08 0.03-0.08
Cr (%) 13.5-16.0 13.5-16.00
Mn (%) <=2.00 <=2.00
Mo (%) 1.00-1.50 1.00-1.50
Ni (%) 24.0-27.0 24.00-27.00
P (%) <=0.040 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.00
Ti (%) 1.90-2.35 1.9-2.30
V (%) 0.10-0.50 0.10-0.50
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A959 660 IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH
Tensile Strength Not specified 900-1100 MPa
Yield Strength Not specified >=600 MPa (0.2 % proof stress)
Elongation Not specified >=15%
Condition Not specified Bars, forgings, pipes, plates, S+P, thickness over 5 to 250 (first row of Table 3)
Typical Applications
ASTM A959 660
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Can ASTM A959 660 Be Substituted With IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH?
ASTM A959 660 and IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH is often considered as a substitute for ASTM A959 660 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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ASTM A959 660
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IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH
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Frequently Asked Questions
What is the difference between ASTM A959 660 and IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 660 be substituted with IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH?
ASTM A959 660 and IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 7) 6Ni25Cr15Ti2MoVBH is often considered as a substitute for ASTM A959 660 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.