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EN 10025-5 S355J2W vs EN 10025-5 S420K2W

Close Alternative — 71% match based on chemical composition and mechanical property overlap.

EN 10025-5 S355J2W (EN 10025-5:2019) and EN 10025-5 S420K2W (EN 10025-5:2019) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. EN 10025-5 S355J2W is defined under European Standard (EN), originating from Europe, while EN 10025-5 S420K2W is defined under European Standard (EN), originating from Europe.

As per chemical composition, EN 10025-5 S355J2W vs EN 10025-5 S420K2W is a 95.1% match. As per mechanical properties, the match is 22.8%. Combined, this makes them a close alternative overall at 71%.

Frequently Compared With EN 10025-5 S355J2W:
ASTM A588 JIS G3114 SMA400 EN 10025-5 S355J0WP EN 10025-5 S355J2WP ASTM A588 Grade A AS/NZS 3678 Grade 350WR CSA G40.21 350A CSA G40.21 50W CSA G40.21 260WT CSA G40.21 480A ASTM A709 Grade HPS 70W ASTM A588 Grade B
Match Breakdown
CHEMISTRY MATCH
95.1%
MECHANICAL MATCH
22.8%
OVERALL
71%
Specifications
Property EN 10025-5 S355J2W EN 10025-5 S420K2W
Standard EN 10025-5:2019 EN 10025-5:2019
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) <=0.16 <=0.20
Si (%) <=0.50 <=0.65
Mn (%) 0.50-1.50 0.50-1.35
P (%) <=0.030 <=0.030
S (%) <=0.030 <=0.030
Cr (%) 0.40-0.80 0.40-0.80
Cu (%) 0.25-0.55 0.25-0.55
N (%) Not specified <=0.025
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10025-5 S355J2W EN 10025-5 S420K2W
Tensile Strength 470-630 MPa 500-660 MPa
Yield Strength >=355 MPa >=420 MPa
Elongation >=22% >=19%
Condition Nominal thickness up to 16 mm for yield, 3 to 100 mm for tensile, 3 to 40 mm for elongation (Lo = 5.65 sqrt(S0), longitudinal); transverse values are lower, see blocks Nominal thickness up to 16 mm for yield, 3 to 100 mm for tensile, 3 to 40 mm for elongation (Lo = 5.65 sqrt(S0), longitudinal); transverse values are lower, see blocks
Typical Applications
EN 10025-5 S355J2W
Used for bridges, rail wagons, architectural structures, containers, transmission towers, and outdoor steelwork.
EN 10025-5 S420K2W
Not documented
Key Differences
Can EN 10025-5 S355J2W Be Substituted With EN 10025-5 S420K2W?
EN 10025-5 S355J2W and EN 10025-5 S420K2W 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.
Forms & Sizes Available on M-EX
EN 10025-5 S355J2W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–4400 mm (114.17–173.23 in)
EN 10025-5 S420K2W
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On M-EX Right Now
EN 10025-5 S355J2W
2 active listings and RFQs →
EN 10025-5 S420K2W
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10025-5 S355J2W and EN 10025-5 S420K2W?
EN 10025-5 S420K2W specifies N which is not specified for EN 10025-5 S355J2W.
Can EN 10025-5 S355J2W be substituted with EN 10025-5 S420K2W?
EN 10025-5 S355J2W and EN 10025-5 S420K2W 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.