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EN 10025-3 S420JR vs ASTM A1008 SS Grade 50

Related Material — 63.3% match based on chemical composition and mechanical property overlap.

EN 10025-3 S420JR (EN 10025-3:2019) and ASTM A1008 SS Grade 50 (ASTM A1008) are both steel grades. Both fall under the Structural Steel category. EN 10025-3 S420JR is typically used for used in bridges, heavy machinery frames, structural beams, offshore structures, and crane components., while ASTM A1008 SS Grade 50 is commonly used for cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength. EN 10025-3 S420JR is defined under European Standard (EN), originating from Europe, while ASTM A1008 SS Grade 50 is defined under ASTM International, originating from United States.

As per chemical composition, EN 10025-3 S420JR vs ASTM A1008 SS Grade 50 is a 94.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 63.3%.

Frequently Compared With EN 10025-3 S420JR:
CSA G40.21 400A CSA G40.21 480W CSA G40.21 400W GOST 19281 09G2S CSA G40.21 260W AS/NZS 3679.1 300 CSA G40.21 300W AS/NZS 3679.1 350 CSA G40.21 350W ASTM A572 Gr.65 ASTM A283C ASTM A1008 SS Grade 80
Match Breakdown
CHEMISTRY MATCH
94.9%
MECHANICAL MATCH
0%
OVERALL
63.3%
Specifications
Property EN 10025-3 S420JR ASTM A1008 SS Grade 50
Standard EN 10025-3:2019 ASTM A1008
Category Structural Steel Structural Steel
C (%) 0.20 max <=0.20
Si (%) 0.55 max <=0.50
Mn (%) 1.70 max <=1.35
P (%) 0.030 max <=0.040
S (%) 0.030 max <=0.040
N (%) 0.015 max 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 EN 10025-3 S420JR ASTM A1008 SS Grade 50
Tensile Strength 520-680 MPa 380 MPa min
Yield Strength 420 MPa min 340 MPa min
Elongation 17% min 14% min
Hardness 170-220 HB Not specified
Typical Applications
EN 10025-3 S420JR
Used in bridges, heavy machinery frames, structural beams, offshore structures, and crane components.
ASTM A1008 SS Grade 50
Cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength
Key Differences
Can EN 10025-3 S420JR Be Substituted With ASTM A1008 SS Grade 50?
EN 10025-3 S420JR and ASTM A1008 SS Grade 50 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 10025-3 S420JR
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3500–3900 mm (137.8–153.54 in)
ASTM A1008 SS Grade 50
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–3400 mm (106.3–133.86 in)
On M-EX Right Now
EN 10025-3 S420JR
2 active listings and RFQs →
ASTM A1008 SS Grade 50
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10025-3 S420JR and ASTM A1008 SS Grade 50?
EN 10025-3 S420JR specifies N which is not specified for ASTM A1008 SS Grade 50.
Can EN 10025-3 S420JR be substituted with ASTM A1008 SS Grade 50?
EN 10025-3 S420JR and ASTM A1008 SS Grade 50 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.