Post Stock Login Register

BS 970 (Part 1) 170H41 vs SAE J404 1340

Close Alternative — 80.5% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 170H41 (BS 970 (Part 1):1983) and SAE J404 1340 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 170H41 is typically used for through hardening steel for mechanical and allied engineering purposes (table 6 gives composition only; see the hardenability tables)., while SAE J404 1340 is commonly used for chemistry-only alloy steel grade; see the composition notes for product scope. BS 970 (Part 1) 170H41 is defined under British Standards (BS), originating from United Kingdom, while SAE J404 1340 is defined under SAE International, originating from United States.

As per chemical composition, BS 970 (Part 1) 170H41 vs SAE J404 1340 is a 80.5% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 80.5%.

Frequently Compared With BS 970 (Part 1) 170H41:
IS 1570 (Part 4) 103Cr4 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
80.5%
MECHANICAL MATCH
No shared data
OVERALL
80.5%
Specifications
Property BS 970 (Part 1) 170H41 SAE J404 1340
Standard BS 970 (Part 1):1983 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.37-0.44 0.38-0.43
Mn (%) 0.80-1.10 1.60-1.90
B (%) 0.0005-0.005 Not specified
P (%) <=0.035 <=0.030
S (%) <=0.040 <=0.040
Si (%) Not specified 0.15-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
BS 970 (Part 1) 170H41
Through hardening steel for mechanical and allied engineering purposes (Table 6 gives composition only; see the hardenability tables).
SAE J404 1340
Chemistry-only alloy steel grade; see the composition notes for product scope
Key Differences
Can BS 970 (Part 1) 170H41 Be Substituted With SAE J404 1340?
BS 970 (Part 1) 170H41 and SAE J404 1340 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
BS 970 (Part 1) 170H41
0 active listings and RFQs →
SAE J404 1340
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 170H41 and SAE J404 1340?
BS 970 (Part 1) 170H41 specifies B which is not specified for SAE J404 1340. SAE J404 1340 specifies Si which is not specified for BS 970 (Part 1) 170H41.
Can BS 970 (Part 1) 170H41 be substituted with SAE J404 1340?
BS 970 (Part 1) 170H41 and SAE J404 1340 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.