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Industrial-Grade Stainless Steel Pipe Fittings | 316/304 Alloys

$1,090.00 SGD

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Quantity 10 - 199 tons 200 - 4999 tons >= 5000 tons

Thickness 1-50mm

Product Detail Page: Industrial-Grade Stainless Steel Pipe Fittings | 316/304 Alloys

Product Overview

Engineered for demanding industrial environments, our stainless steel pipe fittings combine superior corrosion resistance, mechanical strength, and durability. Available in 316 and 304 alloys, these fittings are ideal for applications in chemical processing, oil/gas, marine systems, and high-temperature environments. With certifications including ASTM A240/A554 and ASME B16.11, they ensure compliance with global standards for safety and performance.

Technical Specifications

Parameter	Details
Material Grades	316 (UNS S31600), 316L (UNS S31603), 304 (UNS S30400), 304L (UNS S30403)
Types	Elbows, Tees, Reducers, Caps, Flanges, 3 stainless steel exhaust pipe
Size Range	1/4" to 80" (DN6 to DN2000)
Wall Thickness	Schedule 40 stainless steel pipe: 0.28" (7.1mm) for 6" NPS
Pressure Rating	Up to 6,000 psi (413 bar)
Hardness	316: 85–95 HRB / 304: 70–90 HRB
Surface Finish	Polished (Ra ≤ 0.8μm), Pickled, Sandblasted
Temperature Range	-200°C to +800°C (316/304)
Certifications	ASTM A240, ASME B16.11, ISO 9001, PED 2014/68/EU, NACE MR0175

Mechanical & Chemical Properties

Tensile & Bend Strength

316 Stainless Steel:
- Ultimate Tensile Strength: 82,000 psi (565 MPa)
- Yield Strength: 37,000 psi (255 MPa)
- Bend Strength: Withstands 52% elongation before fracture, ideal for high-pressure systems like schedule 40 stainless steel pipe.
304 Stainless Steel:
- Ultimate Tensile Strength: 73,000 psi (505 MPa)
- Yield Strength: 31,000 psi (215 MPa)
- Bend Strength: 55% elongation, suitable for structural applications.

Weight Calculation

Calculate the weight of stainless steel pipe fittings using:
$Weight (kg) = \frac{π \times ( OD ^{2} - ID ^{2} ) \times Length \times Density}{4 \times 10 ^{6}}$
Example: A 6" schedule 40 stainless steel pipe (OD 6.625", ID 6.065") weighs 19.16 lbs/ft (28.5 kg/m).

Identification Marking

Each fitting is laser-etched with:

Grade (e.g., 316L, 304)
Heat Number
Compliance Marks (ASTM/ASME)
Manufacturer Code.

Causes of Stainless Steel Rusting

While stainless steel pipe fittings resist corrosion, rust may occur due to:

Chloride Exposure: Saltwater or de-icing agents degrade the chromium oxide layer, causing pitting.
Mechanical Damage: Scratches from abrasive tools expose the iron substrate to oxidation.
Low Oxygen Environments: Stagnant water prevents oxide layer regeneration.
Galvanic Corrosion: Contact with carbon steel in humid conditions triggers electrochemical reactions.

Applications

3 stainless steel exhaust pipe: High-temperature resistance in automotive and aerospace exhaust systems.
Chemical Processing: 316L fittings resist sulfuric, acetic, and chloride-rich media.
Marine Systems: Schedule 40 stainless steel pipe withstands saltwater corrosion in shipbuilding.
Oil/Gas Pipelines: ASTM A312-certified fittings for high-pressure drilling and transport.

Manufacturing Process

Material Selection: Billets sourced from mills like TSINGSHAN and TISCO.
Forming: Cold drawing (±0.05mm tolerance) or hot rolling for large diameters.
Heat Treatment: Solution annealing (1,040°C for 304) or aging (480°C for 316L).
Surface Finishing: Electro-polishing for Ra ≤ 0.8μm or sandblasting.
Quality Assurance: 100% ultrasonic testing and third-party inspections.

Why Choose Our Stainless Steel Pipe Fittings?

Premium Alloys: 316L contains 2–3% molybdenum for marine-grade corrosion resistance.
Customization: Tailored sizes (1/4"–80"), thicknesses, and surface finishes.
Global Certifications: ASTM, ASME, PED, and NACE compliance.
Fast Delivery: Stocked in 3–200mm diameters with 7–15 day lead times.
Sustainability: 100% recyclable materials and ISO 14001-certified production.

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Industrial-Grade Stainless Steel Pipe Fittings | 316/304 Alloys