API-Certified galvanized pipe fittings | Oil & Gas Pipeline Compliance

API-Certified Galvanized Pipe Fittings | Oil & Gas Pipeline Compliance

Product Overview

Our API-certified galvanized pipe fittings are engineered to meet stringent industry standards for oil and gas pipeline systems. Designed for durability, corrosion resistance, and high-pressure performance, these fittings ensure compliance with API 5L, API 5CT, and other relevant specifications. Ideal for harsh environments, they are widely used in upstream, midstream, and downstream applications.

Product Specifications

Key Attributes

1. Tensile Strength

   • Minimum Yield Strength: Ranges from 290 MPa (X42) to 690 MPa (X80).
   • Ultimate Tensile Strength: 414 MPa (X60) to 896 MPa (X80).
   • Testing complies with ASTM E8/E8M, ensuring resistance to deformation under load.

2. Bending Strength

   • Cold Bend Test: Passes 180° bending without cracking (per API 5L).
   • Elastic Modulus: 200 GPa, suitable for dynamic load applications.

3. Corrosion Resistance

   • Zinc coating thickness: 85 µm (3.5 mils) minimum.
   • Protects against rust, moisture, and chemical exposure.

4. Weight Calculation
   Formula for galvanized pipe weight:

   $$W=0.02466\times (D-T)\times T\times L$$

   Where $D$ = outer diameter (mm), $T$ = wall thickness (mm), $L$ = length (m).

Identification & Marking

• Laser Engraving: API grade, size, heat number, and manufacturer’s logo.
• Color Coding: Yellow for gas pipelines, red for high-pressure lines.
• Certification Marks: API monogram, ISO 9001, and PED/AD2000 compliance.

Common Causes of Stainless Steel Rust

While stainless steel is inherently corrosion-resistant, improper handling or environmental factors may lead to rust:

1. Surface Contamination: Contact with carbon steel tools or iron particles triggers galvanic corrosion.
2. Chloride Exposure: Coastal or chemical-rich environments degrade the passive oxide layer.
3. Mechanical Damage: Scratches or dents expose the base metal to oxidation.
4. Inadequate Cleaning: Organic residues (e.g., grease) accelerate pitting.

Why Choose Our Stainless Steel Products?

1. Full Industry Certification

   • API Q1, API 5L/5CT, and ISO 9001/14001 certified.
   • Audited by third-party agencies like DNV and ABS.

2. Advanced Manufacturing

   • Seamless/welded pipes produced via JCO forming and automated UT/ET testing.
   • Customizable dimensions (OD: 26.67mm–219.08mm; WT: 3.18mm–22.2mm).

3. Global Supply Network

   • Partnered with galvanized pipe distributors in 20+ countries.
   • Fast logistics via DHL, FedEx, and sea freight.

4. Comprehensive Support

   • Free samples (customer covers shipping).
   • OEM branding and technical drawings accepted.

Keywords Integrated:

• Galvanized pipe diameters accommodate diverse industrial needs.
• Trusted by leading galvanized pipe distributors for quality assurance.
• Compatible with galvanized pipe hangers for secure installations.

Why Our Stainless Steel Stands Out

1. Superior Material Integrity

   • Chromium content ≥16% for enhanced oxide layer formation.
   • Molybdenum-added grades (e.g., 316L) resist pitting in sour service.

2. End-to-End Customization

   • Tailored solutions for offshore, LNG, and chemical processing.
   • CNC machining and precision threading (BTC, LTC, STC).

3. Eco-Friendly & Cost-Effective

   • Recyclable material with a 50-year lifespan.
   • Reduced maintenance costs due to corrosion resistance.

4. Proven Track Record

   • Supplied to ExxonMobil, BP, and Petrobras.
   • 18+ years of expertise in metal fabrication.