StockSteel

Bulk-Deal galvanized pipe fittings | Wholesale Pricing for Builders

$420.00 SGD

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Taxes included. Shipping calculated at checkout.

Quantity 1 - 9 tons 10 - 49 tons >= 50 tons

Quantity

Attribute	Details
Material	Malleable Iron (EN-GJMB-350-10/KTH350-10)
Size Range	1/4" to 6" (DN 15 to DN 250)
Pressure Rating	PN16/PN25 (363 PSI/2.5 MPa)
Temperature Range	-20°C to 200°C (-4°F to 392°F)
Thread Standard	ISO 7-1, BSPT, NPT
Surface Treatment	Hot-Dip Galvanized (70–120 μm), Electro Galvanized (25–40 μm), or Black Finish
Hardness (Brinell)	≤150 HB
Tensile Strength	≥350 MPa
Elongation	≥10%
Certifications	UL Listed, FM Approved, ISO 9001, CE, RoHS, CCC
Packaging	Pallet/Carton (48 cartons per pallet; 20 pallets per 20' container)

Tensile & Bend Resistance
Our fittings achieve a minimum tensile strength of 350 MPa, ensuring structural integrity in high-pressure systems like fire suppression networks and industrial plumbing. The elongation rate of ≥10% allows flexibility to absorb mechanical stress without fracturing. For buy galvanized pipe systems requiring rigidity, our malleable iron core resists deformation even under extreme loads.
Compatibility & Applications
- Gas Systems: Can I use galvanized pipe for gas? While galvanized fittings are corrosion-resistant, consult local codes for gas line compliance. Zinc coatings may flake over time, risking gas regulator clogs.
- Retrofitting: Use dielectric unions for copper to galvanized pipe transitions to prevent galvanic corrosion.
- Fire Safety: UL 1424-certified for 180+ minutes of fire resistance.
Weight Calculation
Formula for galvanized pipe weight:
$Weight (kg/m) = \frac{( OD ^{2} - ( OD - 2 \times WT ) ^{2} ) \times 0.02466}{1000}$
Example: A 2" (OD 60.3 mm) pipe with 3.9 mm wall thickness weighs 3.2 kg/m.
Identification & Traceability
- Laser-etched markings include ASTM standard, size, batch number, and manufacturer logo.
- Hot-dip galvanized fittings feature a spangled zinc surface; electro-galvanized units have a smooth finish.

Stainless steel’s chromium oxide layer provides corrosion resistance, but rust can occur due to:

Mechanical Damage: Scratches expose the iron substrate to oxygen.
Chemical Exposure: Chlorides (e.g., seawater) or acids degrade the passive layer.
Galvanic Corrosion: Contact with dissimilar metals (e.g., carbon steel) accelerates oxidation.
High Temperatures: Prolonged exposure above 500°C oxidizes chromium.

Our Solution:

316L Stainless Options: 16–20% chromium + 2–3% molybdenum for chloride-rich environments.
Passivation Treatment: Post-fabrication acid baths enhance oxide layer regeneration.

Construction: Scaffolding, HVAC, and water supply systems.
Agriculture: Irrigation and livestock water networks.
Bulk Pricing:
- Hot-Dip Galvanized: $2.50-$ 5.80 per fitting (volume discounts for 1,000+ units).
- Electro-Galvanized: $1.80-$ 3.20 per fitting (ideal for indoor use).

Superior Corrosion Resistance: 316L-grade stainless steel for coastal or chemical-heavy environments.
Eco-Friendly: 100% recyclable with ISO 14001-certified production.
Custom Fabrication: CNC-machined threads and grooved ends for leak-proof seals.
Global Compliance: ASME B16.3, EN 10242, and NFPA standards.
Lifetime Warranty: Third-party audited quality control and traceable certifications.

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