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Quality S355J2H Rectangular Tube Seamless Welded Hot Finished Structural Hollow Sections factory
Quality S355J2H Rectangular Tube Seamless Welded Hot Finished Structural Hollow Sections factory
Quality S355J2H Rectangular Tube Seamless Welded Hot Finished Structural Hollow Sections factory

S355J2H Rectangular Tube Seamless Welded Hot Finished Structural Hollow Sections

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
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Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

S355J2H Rectangular SS Tube
Product Summary
S355J2H is a European standard hot-finished seamless or welded structural hollow section specified under EN 10210-2. The "S" stands for structural steel, "355" indicates minimum yield strength of 355 MPa (at 16mm thickness), "J2" denotes impact testing at -20°C, and "H" signifies hollow section. ...

Product Details

Highlight:

S355J2H Rectangular SS Tube

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Seamless Hot Finished Structural Hollow Sections

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Welded Hot Finished Structural Hollow Sections
Country Of Origin: MADE IN CHAINA
Brand: Baosteel，TISCO
Certifications: ISO/EN 10204 Type 3.1 / 3.2 Available
Grade: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ: 100kg
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

S355J2H is a European standard hot-finished seamless or welded structural hollow section specified under EN 10210-2. The "S" stands for structural steel, "355" indicates minimum yield strength of 355 MPa (at 16mm thickness), "J2" denotes impact testing at -20°C, and "H" signifies hollow section.

S355J2H Rectangular Tube is widely used in load-bearing structures, steel frameworks, bridges, cranes, and heavy machinery where high strength, good weldability, and low-temperature toughness are required.

Unlike cold-formed hollow sections (EN 10219), S355J2H under EN 10210 is hot-finished, which results in more uniform mechanical properties, better weldability, and less residual stress.

Quick Facts Value
Standard EN 10210-2
Material S355J2H (1.0576)
Shape Rectangular
Process Hot-finished seamless or welded
Key Feature High strength, -20°C impact toughness
Primary Use Structural frameworks, bridges, and cranes
Specifications, Dimensions, Standards & Packaging
Product Specifications
Parameter Details
Standard EN 10210-2
Material Grade S355J2H (1.0576)
Shape Rectangular Hollow Section (RHS)
Manufacturing Process Hot-finished (seamless or welded)
Surface Finish Mill scale / Black (or primed upon request)
Length 6,000 mm / 12,000 mm or custom cut
End Finish Plain cut, deburred / Bevelled / Threaded
Standard Size Range (Rectangular Tube)
Height × Width (mm) Wall Thickness (mm)
50 × 30 2.5 – 4.0
60 × 40 3.0 – 5.0
80 × 40 3.0 – 5.0
80 × 60 3.0 – 6.0
100 × 50 3.0 – 6.0
100 × 80 4.0 – 8.0
120 × 60 4.0 – 8.0
120 × 80 4.0 – 8.0
150 × 100 5.0 – 10.0
160 × 80 5.0 – 10.0
180 × 100 5.0 – 12.0
200 × 100 5.0 – 12.0
200 × 150 6.0 – 12.5
250 × 150 6.0 – 16.0
300 × 200 6.0 – 16.0
400 × 200 8.0 – 20.0

Custom sizes available upon request.

Dimensional Tolerances (per EN 10210-2)
Parameter Tolerance
Height & Width ± 1% (min ± 0.5 mm, max ± 10 mm)
Wall thickness ± 10% (min ± 0.3 mm)
Straightness ≤ 0.15% of total length
Corner radius ≤ 3× wall thickness (external)
Twist ≤ 2 mm + 0.5 mm per meter
S355J2H Rectangular Tube Packaging Methods
Packaging Type Description
Bundled Steel straps, 1–3 tons per bundle
Loose For small quantities or short lengths
Wooden crates For export and fragile finishes
End caps To protect the tube ends and the internal surface
Waterproof wrapping For ocean / long-distance shipment
Edge protectors Prevents strap damage to tube edges
Marking & Certification
  • Marking: Grade, standard, heat number, size stamped or painted
  • Certificate: EN 10204 Type 3.1 (mill certificate)
  • EN 10204 Type 3.2 available upon request (third-party inspection)
Chemical Composition

Per EN 10210-2, S355J2H has the following chemical requirements (ladle analysis).

Element Content (%) Notes
Carbon (C) ≤ 0.22 Controlled for weldability
Silicon (Si) ≤ 0.55 Deoxidizer
Manganese (Mn) ≤ 1.60 Provides strength
Phosphorus (P) ≤ 0.030 Low for toughness
Sulfur (S) ≤ 0.030 Low for cleanliness
Nitrogen (N) ≤ 0.012 Controlled
Carbon Equivalent (CEV) ≤ 0.45 Ensures good weldability

*CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15*

Mechanical Properties
Tensile Requirements (per EN 10210-2)
Wall Thickness (mm) Yield Strength (MPa) Tensile Strength (MPa) Elongation (%)
≤ 16 mm ≥ 355 470 – 630 ≥ 20
16 – 40 mm ≥ 345 470 – 630 ≥ 20
40 – 63 mm ≥ 335 470 – 630 ≥ 20
63 – 80 mm ≥ 325 470 – 630 ≥ 20
80 – 100 mm ≥ 315 470 – 630 ≥ 20

Elongation measured on 5.65√So gauge length.

Impact Toughness
Temperature Minimum Impact Energy (KV)
-20°C ≥ 27 J (longitudinal)

The "J2" designation guarantees 27 Joules minimum at -20°C, making S355J2H suitable for cold climate and dynamic loading applications.

Comparison with Other Grades
Grade Yield (≤16mm) Impact Temp Best For
S355J2H ≥ 355 MPa -20°C General structural, cold regions
S355J0H ≥ 355 MPa 0°C Mild climate structures
S355NH ≥ 355 MPa -20°C (EN 10210-3) Higher toughness requirements
S275J2H ≥ 275 MPa -20°C Lower strength, cost-effective
Applications

Primary Use: Structural frameworks and load-bearing construction

Other Applications:

  • Building columns and beams
  • Bridge structural members
  • Crane booms and supports
  • Offshore platforms
  • Heavy machinery frames
  • Transmission towers
  • Shipbuilding structures
  • Industrial platforms and walkways
  • Stadium and arena structures

Quick Pick:

Need Choose
General structural (cold climate) S355J2H
General structural (mild climate) S355J0H
Higher strength requirement S420MH or S460MH
Cost-sensitive, lower load S275J2H
Quality Assurance

Every S355J2H rectangular tube we supply is backed by comprehensive quality control.

Testing & Inspection
Test Standard / Method Purpose
Chemical analysis EN 10276 (OES) Verify composition
Tensile test EN ISO 6892-1 Confirm yield, tensile, and elongation
Impact test EN ISO 148-1 (Charpy V-notch) Verify -20°C toughness
Flattening test EN ISO 8492 Check ductility
NDT (Ultrasonic) EN 10246-7 Detect internal defects
Dimensional inspection Calipers, micrometers Verify size and tolerances
Visual inspection — Check surface defects
Certifications

  • EN 10204 Type 3.1 – Standard mill certificate

  • EN 10204 Type 3.2 – Third-party verified (TÜV, BV, SGS)

  • Full traceability – Heat number stamped on each tube

Contact Us
Quick Quote Request

Please provide:

  1. EN 10204 Type 3.1 (mill certificate) Quantity (pieces or meters)
  2. Size (height × width × wall thickness × length)
  3. Standard (EN 10210-2)
  4. Grade (S355J2H)
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