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GOST 380 St3sp vs AS/NZS 3679.1 300

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

GOST 380 St3sp (GOST 380-2005) and AS/NZS 3679.1 300 (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 3679.1 300 is commonly used for hot-rolled structural bars and sections for general structural framing. AS/NZS 3679.1 300 is defined under Australian/New Zealand Standard (AS/NZS) (Australia/New Zealand).

As per chemical composition, GOST 380 St3sp vs AS/NZS 3679.1 300 is a 68.4% match. As per mechanical properties, the match is 40.6%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 380 St3sp:
CSA G40.21 260W AS/NZS 3679.1 350 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
40.6%
OVERALL
35%
Specifications
Property GOST 380 St3sp AS/NZS 3679.1 300
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 3679.1 300
Tensile Strength 370-490 MPa 440-600 MPa
Yield Strength >=245 MPa 300 MPa min
Elongation >=22% 22% min
Hardness <=170 HB Not specified
Typical Applications
GOST 380 St3sp
structural components, welded structures, plates, construction equipment, machinery frames, rolled sections
AS/NZS 3679.1 300
Hot-rolled structural bars and sections for general structural framing
Key Differences
Can GOST 380 St3sp Be Substituted With AS/NZS 3679.1 300?
GOST 380 St3sp and AS/NZS 3679.1 300 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 3679.1 300
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–2700 mm (106.3–106.3 in)
On M-EX Right Now
GOST 380 St3sp
2 active listings and RFQs →
AS/NZS 3679.1 300
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 380 St3sp and AS/NZS 3679.1 300?
GOST 380 St3sp specifies Cu, Ni, Cr which are not specified for AS/NZS 3679.1 300.
Can GOST 380 St3sp be substituted with AS/NZS 3679.1 300?
GOST 380 St3sp and AS/NZS 3679.1 300 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.