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GOST 380 St3sp vs GOST 380 St3ps

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

GOST 380 St3sp (GOST 380-2005) and GOST 380 St3ps (GOST 380-2005) 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 GOST 380 St3ps is commonly used for structural steelwork, welded assemblies, construction materials, plates, bars, channels.

As per chemical composition, GOST 380 St3sp vs GOST 380 St3ps 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 St3sp:
AS/NZS 3679.1 300 CSA G40.21 260W AS/NZS 3679.1 350 CSA G40.21 350W CSA G40.21 400W ASTM A1008 SS Grade 50 ASTM A1008 SS Grade 80 GOST 19281 09G2S CSA G40.21 400A CSA G40.21 300W ASTM A283C ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
94.3%
MECHANICAL MATCH
75%
OVERALL
87.9%
Specifications
Property GOST 380 St3sp GOST 380 St3ps
Standard GOST 380-2005 GOST 380-2005
Category Structural Steel Structural Steel
C (%) 0.14-0.22 0.14-0.22
Si (%) 0.15-0.30 0.05-0.15
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 St3sp GOST 380 St3ps
Tensile Strength 370-490 MPa 370-490 MPa
Yield Strength >=245 MPa >=235 MPa
Elongation >=22% >=22%
Hardness <=170 HB <=170 HB
Typical Applications
GOST 380 St3sp
structural components, welded structures, plates, construction equipment, machinery frames, rolled sections
GOST 380 St3ps
structural steelwork, welded assemblies, construction materials, plates, bars, channels
Can GOST 380 St3sp Be Substituted With GOST 380 St3ps?
GOST 380 St3sp and GOST 380 St3ps overlap closely enough on chemistry and mechanical properties that GOST 380 St3ps is often considered as a substitute for GOST 380 St3sp 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 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)
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)
On M-EX Right Now
GOST 380 St3sp
2 active listings and RFQs →
GOST 380 St3ps
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 380 St3sp and GOST 380 St3ps?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GOST 380 St3sp be substituted with GOST 380 St3ps?
GOST 380 St3sp and GOST 380 St3ps overlap closely enough on chemistry and mechanical properties that GOST 380 St3ps is often considered as a substitute for GOST 380 St3sp in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.