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  • JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
    Raian Ionescu
    Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
Contact Person : Gao
Phone Number : 18068357371
Whatsapp : +8618068357371

ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use

  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
  • ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use
Minimum Order Quantity 50 Tons
Price US $650-1,250 / Ton
Product Details
Model NO. ASTM A500 Surface Treatment Black
Section Shape Square Specification 30*30-300*300
Size 400*400*12mm Length 6meters
Material Q195, Q215, Q235, Q345 Yield Strength 355 N/mm2 (≤16mm)
Tensile Strength 510-680 N/mm2 (d<3) Elongation 22% (3≤d≤40)
Carbon Content ≤0.24% Silicon Content ≤0.55%
Manganese Content ≤1.60% Phosphorus Content ≤0.035%
Sulfur Content ≤0.035%
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ASTM A500 Square Steel Pipe

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400*400*12mm Hollow Steel Pipe

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S355JR Black Iron Pipe
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Product Description
Seamless Square Steel Pipe ASTM A500 400×400×12mm × 6 meters
High-quality square pipe hollow black iron S275JR welded square steel pipe designed for structural applications.
Product Specifications
Available Dimensions
Product Type Size Range Thickness Length
Round Pipe OD 310mm - 1000mm 4mm - 30mm Any length
Square Pipe 10mm×10mm - 1000mm×1000mm 1.2mm - 30.0mm Standard lengths
Rectangle Pipe 20mm×40mm - 400mm×700mm 1.2mm - 30.0mm Standard lengths
L/T/Z Window Section 28mm/38mm 0.5mm - 1.5mm Standard lengths
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: Widely used in structure; Motorbike and Automobile; Ornamental; Medical equipment; Sport equipment and Home furniture
  • Production Capacity: 10,000MT per month
  • Main Market: Europe, America, Africa, Southeast Asia
EN 10025 S355 Steel
S355 steel is a European standard structural steel grade according to EN 10025-2:2004, offering superior properties compared to S235 and S275 steel in yield strength and tensile strength.
S355 Steel Quality Grades
  • S355JR (1.0045)
  • S355J0 (1.0553)
  • S355J2 (1.0577)
  • S355K2 (1.0596)
Steel Grade Designation Meaning
  • "S": Structural steel
  • "355": Minimum yield strength value for flat and long steel thickness ≤ 16mm
  • "JR": Impact energy value minimum 27 J at room temperature (20°C)
  • "J0": Withstands impact energy at least 27 J at 0°C
  • "J2": Minimum impact energy value 27 J at -20°C
  • "K2": Minimum impact energy value 40 J at -20°C
Technical Datasheet and Specifications
Chemical Composition
Standard Steel Grade C Si Mn P S Cu N Method of Deoxidation
EN 10025-2 S355 S355JR 0.24 0.55 1.60 0.035 0.035 0.55 0.012 Rimmed steel not allowed
S355J0 (S355JO) 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
Steel Steel Grade d≤16 16< d ≤40 40< d ≤63 63< d ≤80 80< d ≤100 100< d ≤150 150< d ≤200 200< d ≤250
S355 S355JR (1.0045) 355 345 335 325 315 295 285 275
S355J0 (1.0553) Same as S355JR
S355J2 (1.0577) Same as S355JR
S355K2 (1.0596) Same as S355JR
Mechanical Properties - Tensile Strength
Steel Steel Grade d<3 3 ≤ d ≤ 100 100 < d ≤ 250
S355 S355JR 510-680 470-630 450-600
S355J0 (S355JO) Same as S355JR
S355J2 Same as S355JR
S355K2 Same as S355JR
Mechanical Properties - Elongation
Steel Steel Grade 3≤d≤40 40< d ≤63 63< d ≤100 100< d ≤ 150 150< d ≤ 250
S355 S355JR 22 21 20 18 17
S355J0 (S355JO) Same as S355JR
S355J2 Same as S355JR
S355K2 20 19 18 18 17
Product Images
ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use 0 ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use 1 ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use 2 ASTM A500 Square Steel Pipe 400*400*12mm S355JR Hollow Black Iron Pipe for Structural Use 3
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ASTM A500 Square Steel Pipe

400*400*12mm Hollow Steel Pipe

S355JR Black Iron Pipe

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