S355JR S355J0 S355J2 Square Steel Pipe and Square Tube with Black Surface in 30*30-300*300 Sizes

Quantité de commande min 50 tonnes
Prix US $650-1,250 / Ton
Détails sur le produit
Numéro de modèle. S355JR S355J0 S355J2 Traitement de surface Noir
Forme de la section carré Spécification 30*30-300*300
Gamme de tailles 10mm*10mm - 1000mm*1000mm Plage d'épaisseur 1,2 mm - 30,0 mm
Matériel Le nombre de fois où les données sont utilisées est le nombre de fois où elles sont utilisées. Limite d'élasticité 355 N/mm² (≤16 mm)
Résistance à la traction 510-680 N/mm² (d<3mm) Élongation 22 % (3≤d≤40mm)
Teneur en carbone ≤0,24 % (S355JR) Contenu de manganèse ≤1,60%
Contenu en silicium ≤ 0,55% Contenu du phosphore ≤0,035 % (S355JR)
Contenu de soufre ≤0,035 % (S355JR)
Mettre en évidence

S355JR S355J0 S355J2 Square Steel Pipe

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30*30-300*300 Square Tube

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Black Surface Hollow Section

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Description de produit
Carbon S355 Square Steel Pipes and Tubes
High-quality welded square steel pipes manufactured to EN 10025 standards, available in S355JR, S355J0, and S355J2 grades for structural applications.
Product Specifications
Product Type Specification (mm) Thickness Length
Round Pipe OD310mm - 1000mm 4mm - 30mm Any length
Square Pipe 10mm×10mm - 1000mm×1000mm 1.2mm - 30.0mm -
Rectangle Pipe 20mm×40mm - 400mm×700mm 1.2mm - 30.0mm -
L/T/Z Window Section 28mm/38mm 0.5mm - 1.5mm -
Product Details
  • Material: Q195, Q215, Q235, Q345, etc.
  • Surface: Black or bright, painted or oiled
  • Packing: Export standard packing (bundles, seaworthy package, shipped in container)
  • Delivery Port: Shanghai, China
  • Lead Time: Within 30 days after receiving original L/C or deposit
  • MOQ: 10 Tons per size
  • Usage: Structural applications, automotive, ornamental, medical equipment, sports equipment, and home furniture
  • Production Capacity: 10,000MT per month
  • Main Markets: Europe, America, Africa, Southeast Asia
EN 10025 S355 Steel Grades
S355 structural steel offers superior mechanical properties compared to S235 and S275 grades, with four main quality classifications:
  • S355JR (1.0045): Minimum 27J impact energy at 20°C
  • S355J0 (1.0553): Minimum 27J impact energy at 0°C
  • S355J2 (1.0577): Minimum 27J impact energy at -20°C
  • S355K2 (1.0596): Minimum 40J impact energy at -20°C
Chemical Composition
Steel Grade C (%) Si (%) Mn (%) P (%) S (%) Cu (%) N (%) Deoxidation
S355JR ≤0.24 ≤0.55 ≤1.60 ≤0.035 ≤0.035 ≤0.55 ≤0.012 Rimmed steel not allowed
S355J0 ≤0.20 ≤0.55 ≤1.60 ≤0.030 ≤0.030 ≤0.55 ≤0.012 -
S355J2 ≤0.20 ≤0.55 ≤1.60 ≤0.025 ≤0.025 ≤0.55 - Fully killed
S355K2 ≤0.20 ≤0.55 ≤1.60 ≤0.025 ≤0.025 ≤0.55 - Fully killed
Mechanical Properties
Yield Strength (≥ N/mm²)
Thickness (mm) d≤16 16< d ≤40 40< d ≤63 63< d ≤80 80< d ≤100 100< d ≤150 150< d ≤200 200< d ≤250
S355 Grades 355 345 335 325 315 295 285 275
Tensile Strength (≥ N/mm²)
Thickness (mm) d<3 3 ≤ d ≤ 100 100 < d ≤ 250
S355JR 510-680 470-630 450-600
Elongation (≥%)
Thickness (mm) 3≤d≤40 40< d ≤63 63< d ≤100 100< d ≤150 150< d ≤250
S355JR 22 21 20 18 17
S355K2 20 19 18 18 17
Product Images
S355JR S355J0 S355J2 Square Steel Pipe and Square Tube with Black Surface in 30*30-300*300 Sizes 0 S355JR S355J0 S355J2 Square Steel Pipe and Square Tube with Black Surface in 30*30-300*300 Sizes 1 S355JR S355J0 S355J2 Square Steel Pipe and Square Tube with Black Surface in 30*30-300*300 Sizes 2 S355JR S355J0 S355J2 Square Steel Pipe and Square Tube with Black Surface in 30*30-300*300 Sizes 3