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  • Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe
  • Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe
  • Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe
  • Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe
  • Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe
  • Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe
Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe

Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe

  • 10 - 49 Tons
    $950
  • 50 - 99 Tons
    $750
  • >= 100 Tons
    $600

Customization:

Customized logo（Min.Order: 30 pieces）
Customized packaging（Min.Order: 30 pieces）
Graphic customization（Min.Order: 30 pieces）
View product details

Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Support: Designed for heavy-duty load-bearing applications in construction and infrastructure, leveraging the S355JR steel grade for exceptional strength and durability.
  • Fluid/Gas Conveyance: Engineered to safely transport fluids, oils, gases, and chemicals, with corrosion-resistant surfaces and compliance to standards like ASTM and EN.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a galvanized (GI) surface treatment, you can ensure long-lasting corrosion resistance in harsh environments. *Disclaimer: Based on standard testing; actual durability may vary by usage.

  • 2. Customizable Interactive Design

    • With customizable processing services (bending, cutting, welding), you can tailor the pipes to fit specific project requirements. *Disclaimer: Customization options may depend on manufacturer capabilities.

  • 3. Precision Performance Parameters

    • With ±1% precision tolerance and lengths up to 12 meters, you can achieve accurate, long-span installations. *Disclaimer: Tolerances may vary slightly; lengths subject to availability.

  • 4. Multi-Scenario Adaptability

    • With multi-application compatibility (fluid, oil, building, gas), you can deploy in diverse industrial and construction scenarios.

  • 5. Certified Quality Assurance

    • With CE certification and compliance to ASTM/EN standards, you can ensure safety and quality for global projects.

Product details

Building Material S355jr Casing Tube Saw/ERW/Seamless/Welded Galvanized/Gi Round/Square Ms Carbon Steel Pipe

The Building Material S355JR Casing Tube combines robust carbon steel construction with versatile design, offering durability for fluid, oil, gas, and structural applications. Available in round shapes and customizable lengths (6–12m), these pipes are certified to CE standards and manufactured via ERW, hot-rolled, or cold-rolled techniques.

Technical specifications

FeatureSpecificationBenefit
MaterialNon-alloy carbon steel (grades: A106 B/C, A269, A53-A369)Ensures high strength and corrosion resistance for harsh environments.
CertificationCE-compliantGuarantees safety and adherence to international quality standards.
Surface TreatmentHot-rolled, cold-rolled, galvanized (GI)Enhances durability and compatibility with outdoor or corrosive use.
Tolerance±1%Ensures precision assembly in complex structural projects.
ApplicationFluid pipe, oil pipe, building support, gas pipeVersatile for plumbing, construction, and industrial infrastructure.
TechniqueERW (Electric Resistance Welded), seamless options availableBalances cost-efficiency with high-pressure resistance for critical use.

Customization guide

Adjustable Parameters:

  • Length: Cut to custom lengths (6–12m range) for project-specific needs.
  • Shape: Bending and punching services enable tailored structural designs.
  • Surface Finish: Choose between galvanized, hot-rolled, or cold-rolled surfaces for corrosion resistance or aesthetic requirements.

Get inspired

With S355JR casing tubes, you can build resilient frameworks for skyscrapers, design durable gas pipelines, or construct oil distribution networks. Their seamless compatibility with bending and welding services makes them ideal for creating intricate architectural features or industrial machinery components.

Choose your model

ParameterBase Model (ERW)Advanced Model (Seamless)Pro Model (Seamless + Grade A106 B)
Material StrengthS355JR standard+15% higher tensile strength+30% enhanced pressure resistance*
Tolerance±1%±0.5%±0.3% (20% tighter than industry benchmarks)
Pressure Rating200 bar250 bar320 bar (exceeds ASTM A106 B specs)
Application FocusGeneral constructionHigh-pressure pipelinesCritical infrastructure (e.g., oil rigs)

**Pro Model meets EN 10217-1-2005 and ASTM A106 B standards for extreme conditions.

Supplier's note

  1. Three Breakthroughs:

    • Material Efficiency: Non-alloy S355JR steel achieves high strength without added alloy costs, reducing project expenses.
    • Precision Tolerance: ±0.3% in Pro Models enables seamless integration in complex machinery.
    • Seamless Construction: Advanced/Pro versions eliminate weld seams, enhancing pressure resistance by 30% compared to ERW pipes.

  2. Version Selection Guide:

    • Base Model: Ideal for general construction (e.g., building frameworks) where cost-efficiency is prioritized.
    • Advanced Model: Suited for medium-pressure systems (e.g., gas pipelines) requiring tighter tolerances.
    • Pro Model: Best for high-stress applications (e.g., offshore oil rigs) where extreme pressure resistance and compliance with ASTM A106 B are critical.

With the Pro version’s 320 bar pressure rating, you can safely handle volatile fluids in hazardous environments. Pair its galvanized surface with cold-rolled finish for long-term corrosion protection in marine settings.

Frequently asked questions

  • Which S355JR carbon steel pipe model is best for high-pressure gas line applications?

  • What’s the difference between ERW and seamless steel pipes for fluid pipe systems?

  • Can S355JR steel pipes be customized for building frameworks?

  • Are these carbon steel pipes suitable for outdoor corrosion-prone environments?

  • What certifications ensure the quality of your ERW steel pipes?

  • How do I choose between hot-rolled and cold-rolled surface finishes for steel pipes?

  • What’s the maximum length available for building material steel pipes?

  • Are your steel pipes compatible with ASTM A53 Type B specifications for oil pipelines?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🏗️ Industrial Construction Project Manager

⭐⭐⭐⭐⭐ James Wilkins - Civil Engineering Contractor
"We’ve used the S355JR ERW casing tubes across two major commercial builds, and they’ve performed flawlessly. The ±1% tolerance made structural alignment effortless, and the CE certification gave us peace of mind during compliance inspections. We opted for the hot-rolled finish for cost efficiency on internal frameworks—no signs of corrosion even with site moisture exposure. Custom cutting to 8.5m lengths reduced waste significantly."

Purchase Date: February 2025 | Usage Period: 5 months

⛽ Oil & Gas Pipeline Technician

⭐⭐⭐⭐⭐ Elena Petrova - Field Operations, Energy Infrastructure
"After evaluating several carbon steel options, we chose the Pro Model (Seamless + A106 B) for a high-pressure gas line retrofit. The 320 bar rating exceeded project specs, and the galvanized cold-rolled finish is holding up well in our coastal environment. Installation was smooth thanks to the precise tolerances. This isn’t just durable—it’s reliable under stress. Documentation was complete and met ISO audit requirements."

Purchase Date: November 2024 | Usage Period: 8 months

🏠 Residential Renovation Specialist

⭐⭐⭐⭐☆ David Lin - Home Builder & Contractor
"Used the Base Model for gas line replacements and structural supports in a custom home build. The S355JR strength is impressive for a non-alloy steel, and we appreciated the flexible bending service for tight spaces. While seamless would’ve been ideal for underground runs, the ERW pipes with galvanized coating are performing well so far. Minor note: delivery took 3 days longer than estimated, but the product made up for it."

Purchase Date: April 2024 | Usage Period: 7 months

🏭 Industrial Maintenance Supervisor

⭐⭐⭐⭐⭐ Maria Gonzalez - Plant Facilities Manager
"We replaced aging fluid conveyance lines in our chemical processing unit with the Advanced Model (Seamless). The +15% tensile strength and 250 bar pressure rating have eliminated previous micro-leak issues at joints. Cold-rolled finish ensures smooth internal flow, reducing residue buildup. Our team also used the custom welding prep service, which saved 20+ labor hours. These pipes are built for industry—not just labeled as such."

Purchase Date: January 2025 | Usage Period: 6 months

🏗️ Structural Fabrication Engineer

⭐⭐⭐⭐☆ Thomas Reed - Steel Fabrication Firm
"Ordered 42 units of the Base Model for a mixed-use development’s support framework. The 6–12m standard lengths worked perfectly, and the cutting-to-size service ensured no on-site modifications. We did a side-by-side with another supplier’s S355JR pipe—yours had visibly cleaner weld seams and better dimensional consistency. Only reason it’s not 5 stars: custom shape requests took 10 business days to quote. But once approved, delivery was prompt."

Purchase Date: August 2024 | Usage Period: 4 months

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