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ASTM A709 Grade HPS 70W vs EN 10025-5 S355J2W

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

ASTM A709 Grade HPS 70W (ASTM A709) and EN 10025-5 S355J2W (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 S355J2W is commonly used for used for bridges, rail wagons, architectural structures, containers, transmission towers, and outdoor steelwork.. ASTM A709 Grade HPS 70W is defined under ASTM International, originating from United States, while EN 10025-5 S355J2W is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A709 Grade HPS 70W vs EN 10025-5 S355J2W is a 66.8% 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 CSA G40.21 50W JIS G3114 SMA400 AS/NZS 3678 Grade 350WR EN 10025-5 S355J2WP CSA G40.21 260WT ASTM A588 Grade B CSA G40.21 480A EN 10025-5 S235J2W
Match Breakdown
CHEMISTRY MATCH
66.8%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A709 Grade HPS 70W EN 10025-5 S355J2W
Standard ASTM A709 EN 10025-5:2019
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) <=0.11 <=0.16
Mn (%) 1.10-1.35 0.50-1.50
Si (%) 0.30-0.50 <=0.50
P (%) <=0.020 <=0.030
S (%) <=0.006 <=0.030
Cu (%) 0.25-0.40 0.25-0.55
Cr (%) 0.45-0.70 0.40-0.80
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 S355J2W
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 S355J2W
Used for bridges, rail wagons, architectural structures, containers, transmission towers, and outdoor steelwork.
Key Differences
Can ASTM A709 Grade HPS 70W Be Substituted With EN 10025-5 S355J2W?
ASTM A709 Grade HPS 70W and EN 10025-5 S355J2W 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 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)
On M-EX Right Now
ASTM A709 Grade HPS 70W
2 active listings and RFQs →
EN 10025-5 S355J2W
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A709 Grade HPS 70W and EN 10025-5 S355J2W?
ASTM A709 Grade HPS 70W specifies Ni, Mo which are not specified for EN 10025-5 S355J2W.
Can ASTM A709 Grade HPS 70W be substituted with EN 10025-5 S355J2W?
ASTM A709 Grade HPS 70W and EN 10025-5 S355J2W 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.