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GOST 380 St3sp vs AS/NZS 3679.1 350

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

GOST 380 St3sp (GOST 380-2005) and AS/NZS 3679.1 350 (AS/NZS 3679.1:2016) 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 AS/NZS 3679.1 350 is commonly used for hot-rolled structural bars and sections for primary structural beams, columns, and framing. AS/NZS 3679.1 350 is defined under Australian/New Zealand Standard (AS/NZS) (Australia/New Zealand).

As per chemical composition, GOST 380 St3sp vs AS/NZS 3679.1 350 is a 68.4% match. As per mechanical properties, the match is 1.2%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 380 St3sp:
AS/NZS 3679.1 300 CSA G40.21 260W CSA G40.21 400W CSA G40.21 350W ASTM A1008 SS Grade 50 ASTM A1008 SS Grade 80 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
68.4%
MECHANICAL MATCH
1.2%
OVERALL
35%
Specifications
Property GOST 380 St3sp AS/NZS 3679.1 350
Standard GOST 380-2005 AS/NZS 3679.1:2016
Category Structural Steel Structural Steel
C (%) 0.14-0.22 <=0.22
Si (%) 0.15-0.30 <=0.50
Mn (%) 0.40-0.65 <=1.70
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 AS/NZS 3679.1 350
Tensile Strength 370-490 MPa 480-640 MPa
Yield Strength >=245 MPa 350 MPa min
Elongation >=22% 20% min
Hardness <=170 HB Not specified
Typical Applications
GOST 380 St3sp
structural components, welded structures, plates, construction equipment, machinery frames, rolled sections
AS/NZS 3679.1 350
Hot-rolled structural bars and sections for primary structural beams, columns, and framing
Key Differences
Can GOST 380 St3sp Be Substituted With AS/NZS 3679.1 350?
GOST 380 St3sp and AS/NZS 3679.1 350 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)
AS/NZS 3679.1 350
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3200 mm (114.17–125.98 in)
On M-EX Right Now
GOST 380 St3sp
2 active listings and RFQs →
AS/NZS 3679.1 350
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 380 St3sp and AS/NZS 3679.1 350?
GOST 380 St3sp specifies Cu, Ni, Cr which are not specified for AS/NZS 3679.1 350.
Can GOST 380 St3sp be substituted with AS/NZS 3679.1 350?
GOST 380 St3sp and AS/NZS 3679.1 350 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.