Name: China 6061-T6 Aluminum 90° Elbow Manufacturers, Suppliers and Factory - Wholesale Service - GNEE
Brand: GNEE
SKU: 310835722

Description

Henan Gnee New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of 6061-t6 aluminum 90° elbow in China. With abundant experience, we warmly welcome you to wholesale high quality 6061-t6 aluminum 90° elbow in stock here from our factory. Good service and reasonable price are available.

Our 6061 aluminum 90° elbow is a precision-manufactured butt weld pipe fitting designed for permanent, leak-proof directional changes in aluminum piping systems. Fabricated from 6061-T6 aluminum alloy-the most widely used heat-treatable aluminum grade-these elbows combine excellent corrosion resistance with a tensile strength of 310 MPa (45 ksi), making them ideal for demanding industrial environments.

Each elbow is manufactured to ASME B16.9 and ASTM B241/B361 specifications with full material traceability. Whether you need standard stock sizes or custom angles and wall thicknesses, our aluminum elbow product line is backed by ISO 9001:2015 certified manufacturing processes.

Mechanical Properties (6061-T6 Temper)

Property	Typical Value	ASTM B221 Minimum
Tensile Strength (Ultimate)	310 MPa / 45 ksi	≥260 MPa / 38 ksi
Yield Strength (0.2% Offset)	276 MPa / 40 ksi	≥240 MPa / 35 ksi
Elongation at Break	12% (typical)	≥8% (≤6.35mm) / ≥10% (>6.35mm)
Modulus of Elasticity	68.9 GPa / 10,000 ksi	-
Shear Strength	207 MPa / 30 ksi	-
Hardness (Brinell)	95 HB	-
Fatigue Strength (500×10⁶ cycles)	96.5 MPa / 14 ksi	-

Note: Typical values represent Aluminum Association reference data. ASTM B221 minimum values are guaranteed by material certification. Design calculations should use the minimum values with appropriate safety factors.

Density	2.70 g/cm³
Melting Point	582–652°C / 1080–1205°F
Thermal Conductivity	167 W/m·K
Thermal Expansion	23.6 μm/m·K
Electrical Resistivity	3.99 × 10⁻⁶ Ω·cm
Fatigue Limit (500M cycles)	97 MPa / 14 ksi

Element	Weight %
Si	0.40–0.80
Fe	≤0.70
Cu	0.15–0.40
Mn	≤0.15
Mg	0.80–1.20
Cr	0.04–0.35
Zn	≤0.25
Ti	≤0.15
Others (each)	≤0.05
Others (total)	≤0.15
Al	Remainder (min 95.8%)

Specification of GNEE 6061-T6 Aluminum Elbow

Parameter

Specification

Aluminum Alloy

6061, 6063, 5083, 5086,etc.

Temper

O, T5, T6, T651

Outer Diameter

6 mm – 500 mm

Wall Thickness

1 mm – 50 mm

Angle

45°, 60°, 90°, 180°, Custom

Radius

Short Radius (1D), Long Radius (1.5D), Custom

Schedule

SCH10, SCH40, SCH80, SCH160 (available for specific pipe systems)

Connection

Butt Weld, Socket Weld, Flange, Threaded

Manufacturing

Extruded, Forged, cast, and CNC Machined

Surface

Mill Finish, Anodized, Polished, Powder Coated

Standards

ASTM B241, ASTM B247, EN 755

Standard Long Radius 90° Aluminum Elbow Dimensions

NPS	DN	OD (in)	OD (mm)	C-to-F (in)	C-to-F (mm)	Sch 40 Wall (in)	Sch 40 Wall (mm)	Approx. Weight (lb)	Approx. Weight (kg)
1/2"	DN15	0.840	21.3	1.50	38	0.109	2.77	0.12	0.05
3/4"	DN20	1.050	26.7	1.50	38	0.113	2.87	0.18	0.08
1"	DN25	1.315	33.4	1.50	38	0.133	3.38	0.28	0.13
1-1/4"	DN32	1.660	42.2	1.88	48	0.140	3.56	0.40	0.18
1-1/2"	DN40	1.900	48.3	2.25	57	0.145	3.68	0.55	0.25
2"	DN50	2.375	60.3	3.00	76	0.154	3.91	0.85	0.39
2-1/2"	DN65	2.875	73.0	3.75	95	0.203	5.16	1.60	0.73
3"	DN80	3.500	88.9	4.50	114	0.216	5.49	3.20	1.45
3-1/2"	DN90	4.000	101.6	5.25	133	0.226	5.74	4.00	1.81
4"	DN100	4.500	114.3	6.00	152	0.237	6.02	5.20	2.36
5"	DN125	5.563	141.3	7.50	190	0.258	6.55	8.00	3.63
6"	DN150	6.625	168.3	9.00	229	0.280	7.11	11.50	5.22
8"	DN200	8.625	219.1	12.00	305	0.322	8.18	21.00	9.53
10"	DN250	10.750	273.1	15.00	381	0.365	9.27	34.00	15.42
12"	DN300	12.750	323.9	18.00	457	0.406	10.31	52.00	23.59

Custom wall thicknesses (Sch 10, Sch 80, and Sch 160) and short radius (1.0D) are available on request. Weights calculated based on nominal geometry × 6061 density (2.70 g/cm³), excluding bevel end preparation. Actual weights may vary ±10%. Center-to-Face dimensions per ASME B16.9.

Technical Notes:

Dimensional Tolerances: Per ASME B16.9 Table 2. Wall thickness tolerance: NPS ≤ 18" → +3.2 mm / 0; NPS ≥ 20" → +4.8 mm / 0. Note: the ±12.5% mill tolerance in ASME B31.3 applies to seamless pipe, not to finished fittings.
End Preparation: Standard supplied with Beveled Ends (BE) per ASME B16.25 for immediate butt welding. Plain Ends (PE) or custom grooves available upon request.

6061-T6 Aluminum 90 Elbow 6061-T6 Aluminum 90 Elbow 2

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Marine & Shipbuilding

6061-T6 elbows are used in shipboard piping for cooling water, ballast, bilge, and firefighting systems where weight reduction is valued. For direct, continuous seawater exposure, 5083-O or 5086-H116/H321 alloys are recommended due to their superior resistance to pitting and intergranular corrosion.

Hydraulic & Pneumatic Systems

For hydraulic oil return lines, lube oil circuits, and compressed air distribution, 6061 elbows provide leak-free butt weld connections with minimal pressure drop. Long radius elbows provide smoother flow transitions with lower pressure drop compared to short radius equivalents, making them preferred for hydraulic oil return lines, lube oil circuits, and compressed air distribution.

Aerospace & Aviation

6061-T6 elbows serve in aerospace ground support equipment and non-critical flight systems. For certified flight hardware, material must meet AMS specifications (e.g., AMS-QQ-A-200/8) - available upon request with full certified material test reports.

Chemical & Process Piping

6061 elbows are suitable for mild chemical transfer, food-grade processing, and water treatment in the pH range of approximately 4.5–8.5 under continuous exposure. Operating temperatures range from −50°C to 150°C; above 150°C, mechanical properties degrade progressively - consult ASME B31.3 for derated allowable stress values. Anodized finishes provide additional surface protection.

Not all aluminum grades are equal. Here's how 6061-T6 compares against other common aluminum alloys used in pipe fittings - and why it's the preferred choice for structural piping applications.

Property	6061-T6	6063-T6	5083-O	304 SS
Tensile Strength	310 MPa	240 MPa	300 MPa	515 MPa
Yield Strength	275 MPa	215 MPa	145 MPa	205 MPa
Density	2.70 g/cm³	2.70 g/cm³	2.66 g/cm³	8.00 g/cm³
Weight vs Steel	66% Lighter	66% Lighter	67% Lighter	Baseline
Best For	Structural, pressure piping	Architectural, decorative	Seawater, cryogenic	High temp, extreme pressure

Precision Forming

Aluminum elbows are formed from seamless 6061-T6 aluminum pipe using CNC-controlled mandrel bending or hot-formed extrusion. Internal bore is smooth with no wrinkling or ovality beyond ASME B16.9 tolerances.

Quality Inspection

Every production batch undergoes dimensional inspection (CMM), PMI (Positive Material Identification), hydrostatic pressure testing at 1.5× working pressure, dye penetrant inspection, and visual examination per ASTM B241.

Material Certification

Full traceability from raw billet to finished fitting. Every shipment includes EN 10204 Type 3.1 material certificates, mill test reports (MTR) with chemical analysis and mechanical properties, and certificates of conformance.

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We understand that protecting the beveled ends of aluminum fittings during global transit is critical.

End Protection: Fitted with heavy-duty plastic end caps to prevent mechanical damage, denting, and dirt ingress during transit.
Outer Packing: Securely packed in fumigation-free plywood cases or on reinforced wooden pallets, fully shrink-wrapped and strapped. Suitable for rough handling and long-distance ocean freight (LCL/FCL).
Shipping Flexibility: Offering EXW, FOB, CIF, and DDP terms. Door-to-door delivery available to major global ports (including extensive experience exporting to the Middle East, Europe, and Southeast Asia).

6061-T6 Aluminum 90° Elbow Export Packaging & Delivery

Q: What's the difference between 6061 and 6063 aluminum elbows?

A: 6061-T6 offers approximately 30% higher yield strength (275 MPa vs. 215 MPa) than 6063-T6, making it the preferred choice for pressure-containing and structural piping applications. 6063 has a smoother extruded surface finish and anodizes better, which makes it popular for architectural and decorative fittings. For industrial piping where strength matters, choose 6061. For visible cosmetic applications, 6063 may be more suitable.

Q: Can 6061 aluminum elbows be anodized?

A: Yes. 6061 aluminum anodizes well. Type II sulfuric anodizing produces a durable clear or dyed finish (black, blue, red, gold) with enhanced corrosion resistance. Type III hardcoat anodizing creates a hard surface layer (typically HV 400–600, approximately equivalent to HRC 40–55) suitable for high-wear environments. For marine applications, anodizing is strongly recommended to prevent pitting corrosion. Note: 6063 anodizes slightly more uniformly, but 6061 still produces excellent results for industrial applications.

Q: What filler rod should I use for TIG welding 6061 elbows?

A: For TIG (GTAW) welding 6061 elbows to 6061 pipe, use ER4043 or ER5356 filler rod. ER4043 provides better puddle fluidity, reduced cracking risk, and is the most common choice for general fabrication. ER5356 offers higher weld joint strength, better ductility, and superior color match after anodizing - it's the preferred filler for marine and structural applications. Always clean the oxide layer with a stainless steel brush and use AC current with pure argon shielding gas.

Q: What pressure rating applies to 6061 aluminum 90 degree elbows?

A: Pressure ratings depend on size, wall thickness, and operating temperature. As a general guideline for Schedule 40 6061-T6 elbows: Pressure ratings vary significantly by NPS, wall thickness (schedule), and operating temperature. For precise pressure-temperature ratings, refer to ASME B31.3 Process Piping code calculations using the allowable stress values for 6061-T6 at your operating temperature, or contact our engineering team with your design parameters. For precise pressure-temperature ratings for your specific operating conditions, refer to ASME B31.3 Process Piping code calculations or contact our engineering team with your design parameters.

Q: How does 6061 aluminum compare to stainless steel elbows?

A: 6061 aluminum elbows weigh approximately 66% less than 304 stainless steel equivalents. While stainless steel offers higher absolute strength (515 MPa tensile vs 310 MPa) and higher temperature capability, 6061 provides a superior strength-to-weight ratio and naturally resists atmospheric corrosion without the need for passivation. For weight-sensitive applications like aerospace, marine vessels, and portable equipment, 6061 is often the better engineering choice despite lower absolute strength.

Q: What standards do these elbows comply with?

A: Our 6061 aluminum 90-degree elbows conform to: ASME B16.9 (factory-made wrought butt welding fittings), ASTM B241/B361 (aluminum and aluminum-alloy seamless pipe and fittings), and EN 10204 3.1 (material certification). Additional standards available on request: DIN 2605, JIS B2311, and classification society rules (ABS, DNV, Lloyd's Register).

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6061-T6 Aluminum 90° Elbow