S355 J2hj0h Spiral-Welded Steel Carbon Tubing SSAW/LSAW/ERW Metal Pipe for Pipeline Building

• Customization: Available
• After-sales Service: Oversea After-Sales Service
• Warranty: 1 Years
• Model NO.: S355 J2HJ0H SSAW LSAW ERW
• Type: Welded
• Technique: Cold Rolled
• Material: Carbon Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Products: S355 J2hj0h Spiral Welded Steel Carbon Tubing SSAW
• Standard Specifications: ASTM A106 ASTM A53 DIN 1629 / 2448
• Steel Grades: Q235/275/355
• Main Process: Cold-Formed Seamless
• Unit Leagth: 5800mm-12000mm
• Od: 2-914mm
• Wt: 4-50mm
• Ends: Plain Ends/Bevel Ends
• Delivery: 7-35 Days
• Package: Packed by Bundles, Plastic Bags, Wooden Case
• Surface: Pickled, Bright Annealed, Polished
• Used1: Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Used2: Oil/Gas/Fluid Transportatiomn/Water Infrastructure
• Used3: Chemical/Electrical/Power Industry
• Used4: Electronics, Industrial, Food, Boiler,Dewatering
• Transport Package: Seaworthy Package
• Specification: 0.8mm-25mm
• Trademark: EZ Steel
• Origin: China
• HS Code: 73043110
• Production Capacity: 500000/Year

Product Description

S355 J2HJ0H Spiral Welded Steel Carbon Tubing SSAW LSAW ERW Metal Pipe for Pipeline Building Structure Construction

Product Description

S355 J2H/J0H Spiral Welded Steel Carbon Tubing

Introduction

A high-strength spiral-welded carbon steel tube conforming to EN 10219 standards, specifically engineered for structural and industrial applications. The "S355" designation indicates a minimum yield strength of 355 MPa, with "J2H/J0H" specifying impact toughness at -20°C/-50°C respectively. Spiral welding technology ensures uniform stress distribution and superior circumferential strength.

 

Key Features

1. Enhanced Mechanical Properties

   • Yield strength: ≥355 MPa

   • Tensile strength: 470-630 MPa

   • Charpy V-notch impact: ≥27J at -20°C (J2H) or -50°C (J0H)

2. Manufacturing Excellence

   • Spiral-welded (helical) construction reduces weak points vs. longitudinal seams.

   • Continuous production allows extra-long lengths (up to 18m).

3. Material Consistency

   • Controlled chemical composition (typical):

      

      

      

     C ≤0.20%, Mn ≤1.60%, P ≤0.030%, S ≤0.025%

   • Fine-grain steel with improved weldability.

4. Dimensional Flexibility

   • Outer diameter: 219mm to 3,000mm

   • Wall thickness: 5mm to 25mm

 

Competitive Advantages

 Structural Integrity

• Spiral welding improves hoop strength by 15-20% vs. straight-seam tubes.

 Cost Efficiency

• Lower material waste during fabrication (optimized coil utilization).

 Corrosion Options

• Available with 3PE coating, galvanization, or weathering steel grades.

 Certification Ready

• Complies with EN 10219, ISO 630, and CE Marking for EU projects.

 

Primary Applications

• Civil Engineering: Piling, bridge supports, and underground caissons.

• Oil & Gas: Casing pipes for shallow wells, slurry transportation.

• Wind Energy: Tower sections and transition pieces.

• Water Infrastructure: Large-diameter water transmission mains.

• Mining: Ventilation ducts and tailings pipelines.

 

Technical Comparison

Parameter	S355 J2H/J0H Spiral Tube	Traditional LSAW Tube
Weld Seam	Continuous helical	Straight longitudinal
OD Range	Wider (up to 3m)	Typically ≤1.5m
Pressure Rating	Excellent for axial loads	Better for high-pressure

 

Project-Specific Benefits

• Offshore: J0H grade withstands Arctic conditions (-50°C).

• Seismic Zones: High ductility (min. 22% elongation) resists dynamic loads.

• Customization: Flanged ends, bevel cuts, or splice kits available.

 

 

 

Detailed Photos

 

 

 

 

FAQ

Q:  How many days can you deliver after confirmed the order?
A:  For stock:  within 5-7 days;
      For customized product:  around 30 days;
      For special sizes:  subject to negotiation.

Q: How does your company do quality control?
A: ISO 9001:2015 certified;
     Product certificate as per EN10204 3.1 or 3.2 as per customer's request.
    
  
Q: Can I have a factory-visit?
A:  Surely. All customers are welcome to visit us in China.

Q: Can I have a trial order?
A: Of course, it is an honor for us to have the opportunity to show our quality and service. 
 

Company Profile

	Business Type:	Manufacturer/Factory
	Main Products:	Carbon Steel Pipe , Stainless Steel Pipe , Copper Nickel Tube , Heat Exchanger Tube , Boiler ...
	Registered Capital:	2000000 RMB
	Plant Area:	>2000 square meters
	Management System Certification:	ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, ANSI/ESD
	Average Lead Time:	Peak Season Lead Time: 1-3 months Off Season Lead Time: within 15 workdays

SGS Serial NO. :

QIP-ASI199413Report Verification

EZ STEEL INDUSTRIAL Co., Ltd, together with LONG-RUN METALS Co., Ltd, is the export division and window company of EZ STEEL GROUP, which was founded in 1996 and has been committed to the development and manufacturing of industrial tubes in the past 20 years. It is one of the largest steel tube manufacturing enterprise groups in China. The group possess fixed assets over 200million and more than 800 employees with annual production capacity over 300 thousand tons.

The company has continuously introduced the world advanced manufacturing equipment and now is able to produce welded and seamless steel tube, copper tube and nickle alloy tube. We also have our own coating facilities and workshops for further processing. After years of development, EZ STEEL GROUP and the affiliated enterprises have obtained many kinds of domestic and international certifications including ISO 9001 Quality Management System Certification, ISO14000 Environment Management System Certification, CE, License for Manufacture of Pressure Piping in China, etc. The company has obtained good domestic achievements and is the nominated supplier of CNPC and CNOOC. The product are exported to Southeast Asia, the Middle East and Africa, Europe, Australia, North and Latin Americas via trade companies, and are widely used in pipeline works, foundation works, steel structure works, boiler and condenser fabrication, oil refinery plant, power plant, sugar-making plant, ship-building and offshore construction projects etc.

Holding the concept of First-class Brand, First-class Service, First-class Value, EZ STEEL GROUP is aiming to build up a win-win enterprise platform for both our customers and employees.