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ASTM A537/A537M Class 3 vs IS 11169 (Part 1) 40Cr4Mo2

Related Material — 65% match based on chemical composition and mechanical property overlap.

ASTM A537/A537M Class 3 (ASTM A537/A537M:2013) and IS 11169 (Part 1) 40Cr4Mo2 (IS 11169 (Part 1):2022) are both steel grades. ASTM A537/A537M Class 3 is classified under Carbon Steel, while IS 11169 (Part 1) 40Cr4Mo2 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. ASTM A537/A537M Class 3 is typically used for fusion welded pressure vessels and structures, while IS 11169 (Part 1) 40Cr4Mo2 is commonly used for cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex c). ASTM A537/A537M Class 3 is defined under ASTM International, originating from United States, while IS 11169 (Part 1) 40Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A537/A537M Class 3 vs IS 11169 (Part 1) 40Cr4Mo2 is a 66.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 65%.

Frequently Compared With ASTM A537/A537M Class 3:
BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 060A40
Match Breakdown
CHEMISTRY MATCH
66.8%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property ASTM A537/A537M Class 3 IS 11169 (Part 1) 40Cr4Mo2
Standard ASTM A537/A537M:2013 IS 11169 (Part 1):2022
Category Carbon Steel Alloy Steel
C (%) <=0.24 0.38-0.43
Mn (%) 0.70-1.35 0.75-1.00
P (%) <=0.025 <=0.030
S (%) <=0.025 <=0.040
Si (%) 0.15-0.50 0.15-0.35
Cu (%) <=0.35 <=0.35
Ni (%) <=0.25 <=0.25
Cr (%) <=0.25 0.80-1.10
Mo (%) <=0.08 0.15-0.25
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A537/A537M Class 3 IS 11169 (Part 1) 40Cr4Mo2
Tensile Strength 550-690 MPa Not specified
Yield Strength >=380 MPa Not specified
Elongation >=22% Not specified
Condition Quenched and tempered, thickness 65 mm and under; elongation in 50 mm gauge length Not specified
Typical Applications
ASTM A537/A537M Class 3
Fusion welded pressure vessels and structures
IS 11169 (Part 1) 40Cr4Mo2
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
Key Differences
Can ASTM A537/A537M Class 3 Be Substituted With IS 11169 (Part 1) 40Cr4Mo2?
ASTM A537/A537M Class 3 and IS 11169 (Part 1) 40Cr4Mo2 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 A537/A537M Class 3
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IS 11169 (Part 1) 40Cr4Mo2
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Frequently Asked Questions
What is the difference between ASTM A537/A537M Class 3 and IS 11169 (Part 1) 40Cr4Mo2?
Different category: ASTM A537/A537M Class 3 is Carbon Steel, IS 11169 (Part 1) 40Cr4Mo2 is Alloy Steel.
Can ASTM A537/A537M Class 3 be substituted with IS 11169 (Part 1) 40Cr4Mo2?
ASTM A537/A537M Class 3 and IS 11169 (Part 1) 40Cr4Mo2 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.