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AS/NZS 3678 Grade 350WR vs IS 11169 (Part 1) 16Mn5Cr4

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

AS/NZS 3678 Grade 350WR (AS/NZS 3678:2016) and IS 11169 (Part 1) 16Mn5Cr4 (IS 11169 (Part 1):2022) are both steel grades. AS/NZS 3678 Grade 350WR is classified under Structural Steel (Corten / Weathering), while IS 11169 (Part 1) 16Mn5Cr4 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. AS/NZS 3678 Grade 350WR is typically used for weather-resistant (corrosion-resistant) structural steel; exposed bridge and structural applications requiring atmospheric corrosion resistance, while IS 11169 (Part 1) 16Mn5Cr4 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). AS/NZS 3678 Grade 350WR is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while IS 11169 (Part 1) 16Mn5Cr4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, AS/NZS 3678 Grade 350WR vs IS 11169 (Part 1) 16Mn5Cr4 is a 65.3% 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 AS/NZS 3678 Grade 350WR:
EN 10025-5 S355J0WP CSA G40.21 350A JIS G3114 SMA400 ASTM A588 EN 10025-5 S355J2W EN 10025-5 S355J2WP CSA G40.21 50W ASTM A588 Grade A CSA G40.21 260WT ASTM A709 Grade HPS 70W CSA G40.21 480A ASTM A588 Grade B
Match Breakdown
CHEMISTRY MATCH
65.3%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property AS/NZS 3678 Grade 350WR IS 11169 (Part 1) 16Mn5Cr4
Standard AS/NZS 3678:2016 IS 11169 (Part 1):2022
Category Structural Steel (Corten / Weathering) Alloy Steel
C (%) <=0.20 0.14-0.19
Mn (%) <=1.70 1.00-1.30
Si (%) <=0.50 0.10-0.35
P (%) <=0.035 <=0.035
S (%) <=0.035 <=0.035
Cu (%) 0.25-0.55 <=0.15
Cr (%) 0.40-0.80 0.80-1.10
Ni (%) <=0.65 <=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 AS/NZS 3678 Grade 350WR IS 11169 (Part 1) 16Mn5Cr4
Tensile Strength 480-620 MPa Not specified
Yield Strength 350 MPa min Not specified
Elongation 20% min Not specified
Hardness, annealed (+AC) Not specified <=160 HBW
Typical Applications
AS/NZS 3678 Grade 350WR
Weather-resistant (corrosion-resistant) structural steel; exposed bridge and structural applications requiring atmospheric corrosion resistance
IS 11169 (Part 1) 16Mn5Cr4
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 AS/NZS 3678 Grade 350WR Be Substituted With IS 11169 (Part 1) 16Mn5Cr4?
AS/NZS 3678 Grade 350WR and IS 11169 (Part 1) 16Mn5Cr4 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
AS/NZS 3678 Grade 350WR
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–2800 mm (98.43–110.24 in)
IS 11169 (Part 1) 16Mn5Cr4
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AS/NZS 3678 Grade 350WR
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IS 11169 (Part 1) 16Mn5Cr4
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Frequently Asked Questions
What is the difference between AS/NZS 3678 Grade 350WR and IS 11169 (Part 1) 16Mn5Cr4?
Different category: AS/NZS 3678 Grade 350WR is Structural Steel (Corten / Weathering), IS 11169 (Part 1) 16Mn5Cr4 is Alloy Steel. IS 11169 (Part 1) 16Mn5Cr4 specifies Mo which is not specified for AS/NZS 3678 Grade 350WR.
Can AS/NZS 3678 Grade 350WR be substituted with IS 11169 (Part 1) 16Mn5Cr4?
AS/NZS 3678 Grade 350WR and IS 11169 (Part 1) 16Mn5Cr4 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.