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GOST 380 St3ps vs GOST 380 St3sp

Strong Match — 87.9% match based on chemical composition and mechanical property overlap.

GOST 380 St3ps (GOST 380-2005) and GOST 380 St3sp (GOST 380-2005) are both steel grades. Both fall under the Structural Steel category. GOST 380 St3ps is typically used for structural steelwork, welded assemblies, construction materials, plates, bars, channels, while GOST 380 St3sp is commonly used for structural components, welded structures, plates, construction equipment, machinery frames, rolled sections.

As per chemical composition, GOST 380 St3ps vs GOST 380 St3sp is a 94.3% match. As per mechanical properties, the match is 75%. Combined, this makes them a strong match overall at 87.9%.

Frequently Compared With GOST 380 St3ps:
ASTM A283C AS/NZS 3679.1 300 CSA G40.21 300W AS/NZS 3679.1 350 ASTM A572 Gr.65 CSA G40.21 400W CSA G40.21 350W ASTM A1008 SS Grade 80 CSA G40.21 260W CSA G40.21 480W GOST 19281 09G2S CSA G40.21 400A
Match Breakdown
CHEMISTRY MATCH
94.3%
MECHANICAL MATCH
75%
OVERALL
87.9%
Specifications
Property GOST 380 St3ps GOST 380 St3sp
Standard GOST 380-2005 GOST 380-2005
Category Structural Steel Structural Steel
C (%) 0.14-0.22 0.14-0.22
Si (%) 0.05-0.15 0.15-0.30
Mn (%) 0.40-0.65 0.40-0.65
S (%) <=0.050 <=0.050
P (%) <=0.040 <=0.040
Cu (%) <=0.30 <=0.30
Ni (%) <=0.30 <=0.30
Cr (%) <=0.30 <=0.30
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 St3ps GOST 380 St3sp
Tensile Strength 370-490 MPa 370-490 MPa
Yield Strength >=235 MPa >=245 MPa
Elongation >=22% >=22%
Hardness <=170 HB <=170 HB
Typical Applications
GOST 380 St3ps
structural steelwork, welded assemblies, construction materials, plates, bars, channels
GOST 380 St3sp
structural components, welded structures, plates, construction equipment, machinery frames, rolled sections
Can GOST 380 St3ps Be Substituted With GOST 380 St3sp?
GOST 380 St3ps and GOST 380 St3sp overlap closely enough on chemistry and mechanical properties that GOST 380 St3sp is often considered as a substitute for GOST 380 St3ps in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
GOST 380 St3ps
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3200–4400 mm (125.98–173.23 in)
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)
On M-EX Right Now
GOST 380 St3ps
2 active listings and RFQs →
GOST 380 St3sp
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 380 St3ps and GOST 380 St3sp?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GOST 380 St3ps be substituted with GOST 380 St3sp?
GOST 380 St3ps and GOST 380 St3sp overlap closely enough on chemistry and mechanical properties that GOST 380 St3sp is often considered as a substitute for GOST 380 St3ps in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.