Post Stock Login Register

BS 970 (Part 1) 347S31 vs IS 1570 (Part 7) 12Cr12MoH

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

BS 970 (Part 1) 347S31 (BS 970 (Part 1):1983) and IS 1570 (Part 7) 12Cr12MoH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. BS 970 (Part 1) 347S31 is typically used for austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (table 14, with table 15 for the cold drawn condition)., while IS 1570 (Part 7) 12Cr12MoH is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. BS 970 (Part 1) 347S31 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr12MoH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 347S31 vs IS 1570 (Part 7) 12Cr12MoH is a 59.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 (Part 1) 347S31:
EN 10088-1 1.4006 GOST 5632 08X18H10 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4301 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
59.9%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property BS 970 (Part 1) 347S31 IS 1570 (Part 7) 12Cr12MoH
Standard BS 970 (Part 1):1983 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.08 0.08-0.16
Si (%) <=1.0 <=0.60
Mn (%) <=2.0 0.40-1.00
P (%) <=0.045 <=0.040
S (%) <=0.030 <=0.035
Cr (%) 17.0-19.0 11.5-13.00
Ni (%) 9.0-12.0 <=1.0
Nb (%) 10C-1.00 Not specified
Mo (%) Not specified 0.40-0.80
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 347S31 IS 1570 (Part 7) 12Cr12MoH
Tensile Strength Not specified 680-880 MPa
Yield Strength Not specified >=490 MPa (0.2 % proof stress)
Elongation Not specified >=20%
Condition Not specified Bars, forgings, Q+T, thickness up to 75 (first row of Table 3)
Typical Applications
BS 970 (Part 1) 347S31
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
IS 1570 (Part 7) 12Cr12MoH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can BS 970 (Part 1) 347S31 Be Substituted With IS 1570 (Part 7) 12Cr12MoH?
BS 970 (Part 1) 347S31 and IS 1570 (Part 7) 12Cr12MoH 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
BS 970 (Part 1) 347S31
0 active listings and RFQs →
IS 1570 (Part 7) 12Cr12MoH
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 347S31 and IS 1570 (Part 7) 12Cr12MoH?
BS 970 (Part 1) 347S31 specifies Nb which is not specified for IS 1570 (Part 7) 12Cr12MoH. IS 1570 (Part 7) 12Cr12MoH specifies Mo which is not specified for BS 970 (Part 1) 347S31.
Can BS 970 (Part 1) 347S31 be substituted with IS 1570 (Part 7) 12Cr12MoH?
BS 970 (Part 1) 347S31 and IS 1570 (Part 7) 12Cr12MoH 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.