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

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

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

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