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GOST 380 St3sp vs ASTM A1008 SS Grade 80

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

GOST 380 St3sp (GOST 380-2005) and ASTM A1008 SS Grade 80 (ASTM A1008) are both steel grades. Both fall under the Structural Steel category. GOST 380 St3sp is typically used for structural components, welded structures, plates, construction equipment, machinery frames, rolled sections, while ASTM A1008 SS Grade 80 is commonly used for cold-rolled high-strength structural steel sheet, higher strength grade; automotive structural/reinforcement components, cold-formed high-strength parts. ASTM A1008 SS Grade 80 is defined under ASTM International (United States).

As per chemical composition, GOST 380 St3sp vs ASTM A1008 SS Grade 80 is a 68.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 380 St3sp:
AS/NZS 3679.1 300 CSA G40.21 400W CSA G40.21 260W AS/NZS 3679.1 350 ASTM A1008 SS Grade 50 CSA G40.21 350W CSA G40.21 400A GOST 19281 09G2S CSA G40.21 300W ASTM A283C ASTM A572 Gr.65 CSA G40.21 480W
Match Breakdown
CHEMISTRY MATCH
68.1%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GOST 380 St3sp ASTM A1008 SS Grade 80
Standard GOST 380-2005 ASTM A1008
Category Structural Steel Structural Steel
C (%) 0.14-0.22 <=0.25
Si (%) 0.15-0.30 <=0.50
Mn (%) 0.40-0.65 <=1.65
S (%) <=0.050 <=0.040
P (%) <=0.040 <=0.040
Cu (%) <=0.30 Not specified
Ni (%) <=0.30 Not specified
Cr (%) <=0.30 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 GOST 380 St3sp ASTM A1008 SS Grade 80
Tensile Strength 370-490 MPa 570 MPa min
Yield Strength >=245 MPa 550 MPa min
Elongation >=22% 10% min
Hardness <=170 HB Not specified
Typical Applications
GOST 380 St3sp
structural components, welded structures, plates, construction equipment, machinery frames, rolled sections
ASTM A1008 SS Grade 80
Cold-rolled high-strength structural steel sheet, higher strength grade; automotive structural/reinforcement components, cold-formed high-strength parts
Key Differences
Can GOST 380 St3sp Be Substituted With ASTM A1008 SS Grade 80?
GOST 380 St3sp and ASTM A1008 SS Grade 80 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
GOST 380 St3sp
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3900–3900 mm (153.54–153.54 in)
ASTM A1008 SS Grade 80
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–3700 mm (98.43–145.67 in)
On M-EX Right Now
GOST 380 St3sp
2 active listings and RFQs →
ASTM A1008 SS Grade 80
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 380 St3sp and ASTM A1008 SS Grade 80?
GOST 380 St3sp specifies Cu, Ni, Cr which are not specified for ASTM A1008 SS Grade 80.
Can GOST 380 St3sp be substituted with ASTM A1008 SS Grade 80?
GOST 380 St3sp and ASTM A1008 SS Grade 80 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.