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ASTM A709 Grade HPS 70W vs EN 10025-5 S355J2WP

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

ASTM A709 Grade HPS 70W (ASTM A709) and EN 10025-5 S355J2WP (EN 10025-5:2019) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. ASTM A709 Grade HPS 70W is typically used for high-performance steel (hps) with enhanced atmospheric corrosion resistance and toughness; primary bridge girders and structural members in bridge construction, while EN 10025-5 S355J2WP is commonly used for high-phosphorus weathering steel for enhanced patina formation, improved low-temperature toughness; containers, smokestacks, freight wagons, silos, pylons, bridges, architectural exposed structures. ASTM A709 Grade HPS 70W is defined under ASTM International, originating from United States, while EN 10025-5 S355J2WP is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A709 Grade HPS 70W vs EN 10025-5 S355J2WP is a 60.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A709 Grade HPS 70W:
CSA G40.21 350A EN 10025-5 S355J0WP ASTM A588 ASTM A588 Grade A EN 10025-5 S355J2W CSA G40.21 50W JIS G3114 SMA400 AS/NZS 3678 Grade 350WR CSA G40.21 260WT ASTM A588 Grade B CSA G40.21 480A EN 10025-5 S235J2W
Match Breakdown
CHEMISTRY MATCH
60.3%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A709 Grade HPS 70W EN 10025-5 S355J2WP
Standard ASTM A709 EN 10025-5:2019
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) <=0.11 <=0.12
Mn (%) 1.10-1.35 <=1.0
Si (%) 0.30-0.50 <=0.75
P (%) <=0.020 0.06-0.15
S (%) <=0.006 <=0.030
Cu (%) 0.25-0.40 0.25-0.55
Cr (%) 0.45-0.70 0.30-1.25
Ni (%) 0.70-1.00 Not specified
Mo (%) 0.02-0.08 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A709 Grade HPS 70W EN 10025-5 S355J2WP
Tensile Strength 585 MPa min 470-630 MPa
Yield Strength 485 MPa min >=355 MPa
Elongation 19% min >=22%
Hardness 170-210 HB Not specified
Condition Not specified 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
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
EN 10025-5 S355J2WP
High-phosphorus weathering steel for enhanced patina formation, improved low-temperature toughness; containers, smokestacks, freight wagons, silos, pylons, bridges, architectural exposed structures
Key Differences
Can ASTM A709 Grade HPS 70W Be Substituted With EN 10025-5 S355J2WP?
ASTM A709 Grade HPS 70W and EN 10025-5 S355J2WP 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
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)
EN 10025-5 S355J2WP
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3900–4200 mm (153.54–165.35 in)
On M-EX Right Now
ASTM A709 Grade HPS 70W
2 active listings and RFQs →
EN 10025-5 S355J2WP
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A709 Grade HPS 70W and EN 10025-5 S355J2WP?
ASTM A709 Grade HPS 70W specifies Ni, Mo which are not specified for EN 10025-5 S355J2WP.
Can ASTM A709 Grade HPS 70W be substituted with EN 10025-5 S355J2WP?
ASTM A709 Grade HPS 70W and EN 10025-5 S355J2WP 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.