ISO 1127 Stainless Steel Welded Pipe Nps 1/8 - 8 Marine Industry Pipe

• Customization: Available
• Application: Chemical Industry, Oil and Gas Industry, Building Material
• Carbon Content: Low Carbon Steel
• Model NO.: ISO 1127 Stainless Steel Welded Pipe
• End Connection: End/Custom
• Length: Max 50m
• Outer Diameter: 3.18-810mm
• Surface Finish: Solution Treatment
• Type: Seamless Pipe
• Wall Thickness: 0.2-40mm
• Steel Grade: S31803/S32205/S32750s32304/S32506
• Technique: Hot Rolled/Cold Drawn
• Shape: Round/Customized
• Process: Polished/Solution Treatment
• Condition: Hot Finished/Cold Finished
• End: Plain End/Bevel End
• Usage: Heat Transfer
• Test: BV, SGS Is Available
• Stock: Size Can Customized
• Processing: Customized
• Thickness: 1-150mm
• Used: Factory, Decoration, Food
• Packing: Standard Export Packing
• Delivery Time: 10-30 Working Days
• Size: 1/4"-4"
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• Production Capacity: 100000 Kgs/Year

Product Description

Product Description

1. Dimensions, Tolerances & Theoretical Mass (Table)

Property	Value
Outer Diameter (OD)	Range: 10.2-762 mm (0.4-30"), with standardized dimensions per ISO 1127.
Wall Thickness (WT)	Range: 0.5-30 mm (0.02-1.18"), tolerance ±10% (varies by manufacturing method).
Length	Standard: 5-12 m (16-40 ft); custom lengths available.
Theoretical Mass	Calculated based on OD, WT, and material density (e.g., 7.93 g/cm³ for 304/316).
Tolerances	OD tolerance: ±1% (min. ±0.5 mm); WT tolerance: ±10% (min. ±0.2 mm).

 

2. Material Standards & Grades

• Common Grades: 304, 304L, 316, 316L (compliant with ISO 9303/ISO 9330 for material properties).

• Chemical Composition: Aligns with ISO 3651-2 for austenitic stainless steel (e.g., Cr: 16-20%, Ni: 8-14%, Mo: 2-3% for 316L).

• Mechanical Properties: Tensile strength ≥485 MPa (70,300 psi), yield strength ≥170 MPa (24,600 psi) for Grade 316L.

 

3. Key Applications

• Water & Gas Distribution: Corrosion-resistant pipelines for municipal and industrial systems.

• Food Processing: Hygienic welded pipes for liquid and gas transport in sanitary environments.

• Chemical Transport: Handling acids, alkalis, and non-oxidizing chemicals.

• Architecture: Decorative and structural welded pipes for façades and railings.

• HVAC Systems: Ducting and heat exchange components requiring dimensional precision.

 

4. Manufacturing Standards

• Complies with ISO 1127: Specifies dimensions, tolerances, and theoretical mass for stainless steel pipes.

• Welding methods adhere to ISO 9692 (joint preparation) and ISO 3834 (quality requirements).

• Material properties follow ISO 9303 (seamless/welded tubes for pressure purposes).

 

5. Testing & Certification

• Dimensional Inspection: OD, WT, and straightness verified using laser gauges and calipers.

• Pressure Testing: Hydrostatic or pneumatic testing per ISO 3458 to ensure leak-proof performance.

• Surface Quality: Visual and dye penetrant testing to detect cracks or weld defects.

• Certifications: ISO 9001, EN 10204 3.1/3.2 Mill Test Reports (MTRs), and PED compliance (if applicable).

 

6. Advantages

• Precision Engineering: Tight tolerances ensure compatibility with global piping systems.

• Corrosion Resistance: Suitable for harsh environments (e.g., marine, chemical exposure).

• Cost-Efficiency: Welded construction reduces production costs vs. seamless alternatives.

• Customization: Wide range of sizes and finishes (polished, brushed, coated).

• Sustainability: Long service life and recyclability align with eco-friendly practices.

 

Processing of Production