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High-Quality Stainless Steel Elbow | Durable & Precision-Crafted

$10.00 SGD

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Quantity 1 - 999 pieces >= 1000 pieces

type Elbow

pipe size 1/2"-80" ANSI B16.9 BW 90 Degree

Stainless Steel Elbow Product Details

Specifications, Hardness, Sizes, Properties & Manufacturing Process

Category	Details
Material Grades	304/304L, 316/316L, 321, 310S, 904L, Duplex 2205, Superaustenitic 254SMO
Size Range	stainless steel 90 degree elbow: ½"–24" (DN15–DN600) stainless steel exhaust elbows: 2"–12" (DN50–DN300)
Wall Thickness	SCH 10–SCH 160, STD, XS, XXS (Tolerance: ±10%)
Pressure Rating	ANSI Class 150–2500; PN 6–100
Surface Finish	Pickled, Polished (180G–800G), Bead-Blasted, Electropolished
Hardness (HV)	• Austenitic (304/316): 150–200 HV • Duplex (2205): 280–320 HV • Ferritic (430): 200–250 HV
Process Methods	Seamless (Hot/Cold Extrusion), Welded (ERW, EFW), Forged, Annealed, Solution-Treated
Certifications	ASTM A403, ASME B16.9, EN 10253-4, ISO 4144, PED 2014/68/EU, TÜV, NACE MR0175
Applications	Petrochemical, Marine Exhaust Systems (stainless steel exhaust elbows), HVAC, Food Processing

Key Performance Properties

Tensile Strength

Austenitic grades like stainless steel pipe elbow (304/316L) achieve ≥520 MPa tensile strength, ensuring structural integrity under high-pressure conditions. Duplex stainless steel elbows (e.g., 2205) combine austenitic and ferritic properties, delivering **≥620 MPa tensile strength** for extreme environments like offshore oil rigs.

Bend Strength

Cold-formed elbows exhibit superior bend resistance due to work hardening. For instance, annealed 304 elbows achieve **≥205 MPa yield strength**, while cold-rolled variants reach **≥350 MPa**, ideal for complex piping layouts in chemical plants.

Identification & Marking

Each stainless steel 90 degree elbow is laser-etched with:

Material Grade (e.g., SUS316L)
Standard Code (e.g., ASME B16.9)
Heat Number (traceability)
Size (NPS × WT × Angle)
Custom markings (e.g., client logos) are available upon request.

Weight Calculation Formula

Weight (kg) = $\frac{( O D - W T ) \times W T \times 0.0248 \times Length (m)}{s i n ( θ /2 )}$
Example: For a 90° elbow with 100mm OD × 5mm WT × 0.5m length:
$\frac{( 100 - 5 ) \times 5 \times 0.0248 \times 0.5}{s i n ( 45° )} \approx 1.85 kg$ .

Why Stainless Steel Elbows May Rust?

Despite their corrosion resistance, rust can occur under specific conditions:

Chloride-Induced Pitting: Chlorides in seawater or industrial cleaners penetrate the chromium oxide layer, causing localized corrosion.
Sulfide Inclusions: Manganese sulfide (MnS) impurities create micro-galvanic cells, accelerating pitting.
Mechanical Damage: Scratches during installation expose the base metal to oxidation.
Low Chromium Content: Grades with <10.5% chromium fail to form a stable passive layer.
High-Temperature Scaling: Prolonged exposure to >800°C oxidizes even high-grade alloys.

Preventive Measures:

Select stainless steel exhaust elbows with 316L (Mo-added) for marine environments.
Passivate surfaces post-fabrication to restore chromium oxide layers.
Avoid abrasive cleaning tools; use pH-neutral detergents.

Why Choose Our Stainless Steel Elbows?

Precision Manufacturing: Seamless elbows achieve ±0.1mm dimensional accuracy via CNC-controlled extrusion.
Corrosion Guarantee: 10-year warranty against pitting and crevice corrosion for stainless steel pipe elbow products.
Custom Solutions: Tailored stainless steel 90 degree elbow configurations (short/long radius, mitered) for unique piping systems.
Global Compliance: Certified for ASTM, NACE, and EU Pressure Equipment Directive.
Sustainable: 100% recyclable materials with ISO 14001-compliant production.