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CSA G40.21 350A vs IS 11169 (Part 1) 15Cr3

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

CSA G40.21 350A (CSA G40.21-13 (R2023)) and IS 11169 (Part 1) 15Cr3 (IS 11169 (Part 1):2022) are both steel grades. CSA G40.21 350A is classified under Structural Steel (Corten / Weathering), while IS 11169 (Part 1) 15Cr3 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. CSA G40.21 350A is typically used for exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades., while IS 11169 (Part 1) 15Cr3 is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b). CSA G40.21 350A is defined under Canadian Standards Association (CSA), originating from Canada, while IS 11169 (Part 1) 15Cr3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, CSA G40.21 350A vs IS 11169 (Part 1) 15Cr3 is a 66.2% 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 CSA G40.21 350A:
ASTM A588 AS/NZS 3678 Grade 350WR EN 10025-5 S355J2WP CSA G40.21 260WT CSA G40.21 50W ASTM A588 Grade A EN 10025-5 S355J0WP EN 10025-5 S355J2W JIS G3114 SMA400 ASTM A709 Grade HPS 70W CSA G40.21 480A EN 10025-5 S235J2W
Match Breakdown
CHEMISTRY MATCH
66.2%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property CSA G40.21 350A IS 11169 (Part 1) 15Cr3
Standard CSA G40.21-13 (R2023) IS 11169 (Part 1):2022
Category Structural Steel (Corten / Weathering) Alloy Steel
C (%) max 0.19 0.12-0.18
Mn (%) max 1.35 0.40-0.60
Si (%) max 0.65 0.10-0.35
P (%) max 0.035 <=0.035
S (%) max 0.035 <=0.035
Cu (%) 0.25-0.4 <=0.15
Cr (%) 0.4-0.65 0.50-0.80
Ni (%) 0.4-0.7 <=0.15
Mo (%) Not specified <=0.05
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property CSA G40.21 350A IS 11169 (Part 1) 15Cr3
Yield Strength 350 MPa min Not specified
Tensile Strength 480-650 MPa Not specified
Hardness, annealed (+AC) Not specified <=140 HBW
Typical Applications
CSA G40.21 350A
Exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades.
IS 11169 (Part 1) 15Cr3
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
Can CSA G40.21 350A Be Substituted With IS 11169 (Part 1) 15Cr3?
CSA G40.21 350A and IS 11169 (Part 1) 15Cr3 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.
Forms & Sizes Available on M-EX
CSA G40.21 350A
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3300–3400 mm (129.92–133.86 in)
IS 11169 (Part 1) 15Cr3
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On M-EX Right Now
CSA G40.21 350A
2 active listings and RFQs →
IS 11169 (Part 1) 15Cr3
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Frequently Asked Questions
What is the difference between CSA G40.21 350A and IS 11169 (Part 1) 15Cr3?
Different category: CSA G40.21 350A is Structural Steel (Corten / Weathering), IS 11169 (Part 1) 15Cr3 is Alloy Steel. IS 11169 (Part 1) 15Cr3 specifies Mo which is not specified for CSA G40.21 350A.
Can CSA G40.21 350A be substituted with IS 11169 (Part 1) 15Cr3?
CSA G40.21 350A and IS 11169 (Part 1) 15Cr3 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.