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EN 10025-5 S420J5W vs ASTM A709 Grade HPS 70W

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

EN 10025-5 S420J5W (EN 10025-5:2019) and ASTM A709 Grade HPS 70W (ASTM A709) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. EN 10025-5 S420J5W is defined under European Standard (EN), originating from Europe, while ASTM A709 Grade HPS 70W is defined under ASTM International, originating from United States.

As per chemical composition, EN 10025-5 S420J5W vs ASTM A709 Grade HPS 70W is a 64.3% match. As per mechanical properties, the match is 33.3%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With EN 10025-5 S420J5W:
CSA G40.21 260WT CSA G40.21 480A ASTM A588 ASTM A588 Grade A ASTM A588 Grade B EN 10025-5 S355J5W EN 10025-5 S420J2W EN 10025-5 S420J4W EN 10025-5 S420K2W EN 10025-5 S460J4W
Other Structural Steel (Corten / Weathering) Grades to Compare With EN 10025-5 S420J5W:
CSA G40.21 350A CSA G40.21 50W
Match Breakdown
CHEMISTRY MATCH
64.3%
MECHANICAL MATCH
33.3%
OVERALL
35%
Specifications
Property EN 10025-5 S420J5W ASTM A709 Grade HPS 70W
Standard EN 10025-5:2019 ASTM A709
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) <=0.20 <=0.11
Si (%) <=0.65 0.30-0.50
Mn (%) 0.50-1.35 1.10-1.35
P (%) <=0.030 <=0.020
S (%) <=0.025 <=0.006
N (%) <=0.025 Not specified
Cr (%) 0.40-0.80 0.45-0.70
Cu (%) 0.25-0.55 0.25-0.40
Ni (%) Not specified 0.70-1.00
Mo (%) Not specified 0.02-0.08
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 S420J5W ASTM A709 Grade HPS 70W
Tensile Strength 500-660 MPa 585 MPa min
Yield Strength >=420 MPa 485 MPa min
Elongation >=19% 19% min
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 Not specified
Hardness Not specified 170-210 HB
Typical Applications
EN 10025-5 S420J5W
Not documented
ASTM A709 Grade HPS 70W
High-performance steel (HPS) with enhanced atmospheric corrosion resistance and toughness; primary bridge girders and structural members in bridge construction
Key Differences
Can EN 10025-5 S420J5W Be Substituted With ASTM A709 Grade HPS 70W?
EN 10025-5 S420J5W and ASTM A709 Grade HPS 70W 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
EN 10025-5 S420J5W
No active listings currently.
ASTM A709 Grade HPS 70W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–3800 mm (98.43–149.61 in)
On M-EX Right Now
EN 10025-5 S420J5W
0 active listings and RFQs →
ASTM A709 Grade HPS 70W
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10025-5 S420J5W and ASTM A709 Grade HPS 70W?
EN 10025-5 S420J5W specifies N which is not specified for ASTM A709 Grade HPS 70W. ASTM A709 Grade HPS 70W specifies Ni, Mo which are not specified for EN 10025-5 S420J5W.
Can EN 10025-5 S420J5W be substituted with ASTM A709 Grade HPS 70W?
EN 10025-5 S420J5W and ASTM A709 Grade HPS 70W 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.