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ASTM A709 Grade HPS 70W vs EN 10088-1 X5CrNiCuNb16-4

Related Material — 55.2% match based on chemical composition and mechanical property overlap.

ASTM A709 Grade HPS 70W (ASTM A709) and EN 10088-1 X5CrNiCuNb16-4 (EN 10088-1:2023) are both steel grades. ASTM A709 Grade HPS 70W is classified under Structural Steel (Corten / Weathering), while EN 10088-1 X5CrNiCuNb16-4 is classified under Stainless Steel — a different category, which is worth noting alongside the chemistry match below. ASTM A709 Grade HPS 70W is defined under ASTM International, originating from United States, while EN 10088-1 X5CrNiCuNb16-4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A709 Grade HPS 70W vs EN 10088-1 X5CrNiCuNb16-4 is a 55.2% 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 55.2%.

Frequently Compared With ASTM A709 Grade HPS 70W:
CSA G40.21 350A EN 10025-5 S355J0WP EN 10025-5 S355J2W ASTM A588 ASTM A588 Grade A CSA G40.21 50W AS/NZS 3678 Grade 350WR JIS G3114 SMA400 EN 10025-5 S355J2WP CSA G40.21 260WT ASTM A588 Grade B CSA G40.21 480A
Match Breakdown
CHEMISTRY MATCH
55.2%
MECHANICAL MATCH
No shared data
OVERALL
55.2%
Specifications
Property ASTM A709 Grade HPS 70W EN 10088-1 X5CrNiCuNb16-4
Standard ASTM A709 EN 10088-1:2023
Category Structural Steel (Corten / Weathering) Stainless Steel
C (%) <=0.11 <=0.07
Mn (%) 1.10-1.35 <=1.50
Si (%) 0.30-0.50 <=0.70
P (%) <=0.020 <=0.040
S (%) <=0.006 <=0.015
Cu (%) 0.25-0.40 3.00-5.0
Cr (%) 0.45-0.70 15.0-17.0
Ni (%) 0.70-1.00 3.00-5.0
Mo (%) 0.02-0.08 <=0.60
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 10088-1 X5CrNiCuNb16-4
Tensile Strength 585 MPa min Not specified
Yield Strength 485 MPa min Not specified
Elongation 19% min Not specified
Hardness 170-210 HB Not specified
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 10088-1 X5CrNiCuNb16-4
Not documented
Key Differences
Can ASTM A709 Grade HPS 70W Be Substituted With EN 10088-1 X5CrNiCuNb16-4?
ASTM A709 Grade HPS 70W and EN 10088-1 X5CrNiCuNb16-4 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 10088-1 X5CrNiCuNb16-4
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On M-EX Right Now
ASTM A709 Grade HPS 70W
2 active listings and RFQs →
EN 10088-1 X5CrNiCuNb16-4
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Frequently Asked Questions
What is the difference between ASTM A709 Grade HPS 70W and EN 10088-1 X5CrNiCuNb16-4?
Different category: ASTM A709 Grade HPS 70W is Structural Steel (Corten / Weathering), EN 10088-1 X5CrNiCuNb16-4 is Stainless Steel.
Can ASTM A709 Grade HPS 70W be substituted with EN 10088-1 X5CrNiCuNb16-4?
ASTM A709 Grade HPS 70W and EN 10088-1 X5CrNiCuNb16-4 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.