GNEE Aluminum supplied 1200 pcs of 5083 marine-grade aluminum 90° long-radius butt-weld elbows (1-1/2 in / DN40, OD 48.3 mm, wall 5 mm SCH80) to a customer in Indonesia, with EN 10204 3.1 MTC and full export documentation.
GNEE Aluminum has completed another export order of 5083 aluminum 90° elbows for a marine and offshore fabricator in Indonesia. The material was specified for seawater-exposed piping, where long-term corrosion resistance, dimensional accuracy and certified quality were the customer's primary concerns. This shipment continues GNEE's track record of supplying aluminum butt-weld fittings to industrial buyers across Southeast Asia, and shows the company's ability to meet order-specific dimensions, tempers and inspection requirements without compromising delivery time.
Indonesia is a growing market for marine, construction and consumer-goods aluminum. With active shipbuilding and repair clusters around Batam, Jakarta (Tanjung Priok) and Surabaya, plus offshore and onshore oil & gas, desalination and palm-oil processing plants, domestic demand for corrosion-resistant piping components stays steady year round. Buyers in this market typically require compliance with ASTM B361 / ASME B16.9 specifications, full material traceability, tight dimensional accuracy, and third-party inspection documentation.
Customer Technical Requirements
During the technical evaluation, the Indonesia customer submitted detailed dimensions and requested inspection procedures aligned with ASTM B361 / ASME B16.9 to ensure service reliability in a corrosive marine environment. GNEE's technical team confirmed alloy, temper and tolerances against the application conditions, and agreed on the inspection plan, surface condition and packing method before the order entered production. Any deviation from the agreed specification was resolved with the customer in advance.
For this application, the selected 5083 aluminum 90° elbow delivers the properties the job demands. 5083 is a 5xxx Al-Mg alloy with high strength and excellent seawater corrosion resistance, widely used in marine and shipbuilding service. In service, the fitting must keep its properties under a salt-water operating environment while holding dimensional stability during welding and assembly. A butt-weld elbow is only as reliable as its fit-up: the center-to-end dimension and end bevel must stay within ASME B16.9 limits so that field welding keeps the line in alignment without forced pulls. 5083 welds readily with matching 5xxx filler metals (commonly 5356 or 5183), with low hot-crack sensitivity, but it still requires clean joint preparation, correct root-pass control and a verified alloy to avoid contamination.
GNEE's technical team reviewed the customer's drawing and operating conditions, then confirmed the alloy, temper and tolerance class before production, so the supplied lot matched the downstream process without rework.
Order Specification
| Product | 5083 Aluminum 90° Elbow (Butt Weld, Long Radius) |
|---|---|
| Alloy | 5083 (5xxx Al-Mg, marine grade) |
| Standard | ASTM B361 / ASME B16.9 |
| Dimensions | 1-1/2 in (DN40), outside diameter 48.3 mm, wall thickness 5 mm (SCH80 equivalent), long radius (1.5D) |
| Order Quantity | 1200 pcs |
| Surface Finish | Mill finish |
| Destination | Indonesia |
| Lead Time | 15-30 days after order confirmation |
| MTC | EN 10204 3.1 mill test certificate (3.2 and third-party inspection available on request) |
Quality Control
Every aluminum 90 degree elbow in this order was produced and inspected under GNEE's standard quality system, from incoming ingot verification to final dimensional and visual checks. Mill test certificates to EN 10204 3.1 are provided with the shipment; 3.2 certificates and third-party inspection (such as SGS or BV) can be arranged on request. The inspection items below were applied to this lot and recorded in the corresponding mill test report.
Dimensional inspection per ASME B16.9 - verifies center-to-end distance, outside diameter and wall thickness against the ordered schedule so the fitting aligns with the mating pipe during welding.
Tensile & hardness test (per MTC) - confirms the fitting meets the mechanical properties of the ordered temper before the lot is released.
Visual & surface inspection - detects scratches, dents, oxide and handling marks that could affect weld quality or appearance.
Positive Material Identification (PMI) To be confirmed - confirms the alloy grade of each fitting to avoid mix-up with other materials in the line.
Dye penetrant / hydrostatic test for welded fittings To be confirmed - reveals surface-breaking defects or verifies pressure integrity before service.
Export Packaging for Safe Delivery to Indonesia
For the delivery to Indonesia, the aluminum elbows were packed with seaworthy export materials - protected with interleaving paper / PVC and bound on strong wooden or steel pallets, with end caps and moisture-proof wrapping as required. Each bundle was labelled with heat number, dimensions and net / gross weight. Because the shipment crosses tropical, high-humidity sea lanes, desiccant bags were added inside the wrap and wooden packings were treated and marked per ISPM-15 to satisfy Indonesian quarantine requirements. Packing lists, commercial invoice, bill of lading and the EN 10204 3.1 MTC were prepared for smooth customs clearance, and packing photos can be shared before container loading.
Available Sizes from GNEE Aluminum Elbow
In addition to the ordered dimensions above, GNEE supplies aluminum butt-weld fittings in the standard ranges listed below. Custom sizes can be produced to customer drawing - share your required alloy, temper and dimensions for a quotation.
| Dimension type | Typical range | Tolerance standard |
|---|---|---|
| Nominal pipe size (NPS) | 1/2 – 24 in (DN15 – DN600) | ASME B16.9 |
| Wall schedule | SCH 5S / 10S / 40S / 80S To be confirmed | ASME B16.9 / ASTM B361 |
| Elbow angle | 45° / 90° / 180° | ASME B16.9 |
| Radius | Long radius (1.5D) / Short radius (1D) | ASME B16.9 |
| Fitting type | elbow / tee / reducer / cap / stub end | ASTM B361 |
About GNEE
GNEE Aluminum (established since 2008, China) exports aluminum products to 100+ countries and regions. Common sizes and tempers are kept in stock; both large and small orders are accepted; the technical team assists alloy and temper selection by service condition. For fittings and fabricated parts, GNEE can provide cutting, beveling, marking and heat-number traceability, and can arrange PMI or third-party inspection on request. Standard and custom dimensions can be produced to drawing for fast turnaround. Typical lead time is 15-30 days. Every shipment is backed by an EN 10204 3.1 mill test certificate, and the technical team supports alloy selection, tolerance definition and inspection planning for each order. GNEE works with compliant destinations and eligible end-users only.
Frequently Asked Questions
What standard and certificate apply to the 5083 aluminum 90° elbow?
This product is supplied to ASTM B361 and ASME B16.9, with an EN 10204 3.1 mill test certificate. Third-party inspection and 3.2 certificates can be arranged on request.
What is the typical lead time and minimum order quantity?
Standard lead time is 15-30 days after order confirmation. MOQ is flexible - both small trial orders and large-volume orders are accepted.
Can GNEE supply 5083 aluminum elbows to Indonesia?
Yes. GNEE supplies eligible end-users and compliant destinations only. Export documents are prepared for smooth customs clearance.
Do you supply other sizes of aluminum elbows besides the ordered dimensions?
Yes. Besides the lot described above, GNEE keeps a range of standard sizes in stock and can produce custom dimensions to drawing. The typical supply range for aluminum butt-weld fittings is listed in the Available Sizes section of this page. Tell us your required alloy, temper and dimensions for a quotation.
