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Seamless, push-formed in one piece
Push-formed seamless from 1/2″ to 24″ - no weld seam on the bend to inspect or fail.
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Formed and machined on our own floor
3 elbow pushing machines, 10 press machines, 10 CNC lathes - output and tolerances stay with us, not a subcontractor.
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ISO 9001 / 14001 / 45001 certified
Quality, environmental and safety systems certified, AAA credit rated. Mill certificates ship with the order.
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One team from enquiry to after-sales
Sizing, solutions and quotation from one contact - then shipping updates, pre-arrival reminders and follow-up after dispatch.
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Technical Specifications
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Manufacturing Process
Hover each stage for detail.
Built for Long-Term Pipeline Performance
Even wall thickness, bend to bendCold-worked with mandrel forming, not press-bent. Wall thickness stays even around the outer radius instead of thinning out, so the pressure rating holds through the turn - typically within a few percent of the straight-pipe wall thickness at the outer bend, versus the sharper thinning seen on basic press-bent fittings. |
Smooth bore, lower flow resistanceInterior bore is machined smooth, not left as-cast. Less pump energy lost per turn, and fewer surfaces for scale or sediment to build up over time - a real factor over a multi-year service life on high-flow-cycle lines. |
One supplier, multiple standardsBuilt to ASME B16.9, B16.28, DIN 2605, JIS B2313 and GB/T12459 across five grades. One supplier covers both your dimensional standard and your corrosion-resistance grade, so a project spanning multiple pipe classes doesn't need a second vendor. |
Butt-weld or flange - your callInstallation crews use the procedure they already run - no site-specific workaround, no changes to installation drawings, easy tie-in to existing piping. |
Material Grades
| Key trait | General-purpose, moderate cost |
| Typical use | Industrial & civil piping |
General industrial and civil piping. Moderate cost, widely stocked, suits non-critical corrosive exposure.
Where This Elbow Is Used
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Petroleum & Chemical Processing Uneven wall thickness is the first failure point under corrosive, high-temperature media. WP316/WP316L, cold-worked for even wall thickness, holds rated pressure without derating. |
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Food & Pharmaceutical Processing Weld-joint corrosion and residue buildup drive frequent CIP cycles. WP304L/WP316L low-carbon grade plus smooth bore cuts weld-zone residue. |
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Shipbuilding & Marine Engineering Tight, vibration-prone spaces need butt-weld joints that hold under movement. ASME B16.9 dimensions match standard shipyard welding procedures - no redesign. |
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Construction & Paper Mill Piping Cross-border projects often need documentation against more than one standard. Dimensioned to ASME B16.9, DIN 2605, JIS B2313 and GB/T12459 at once. |
Custom Production (OEM/ODM)
Submit drawing & specification. Send size, angle, material grade, wall thickness/schedule and connection type. We confirm feasibility against ASME B16.9 or the standard you specify.
Sample & mill test report review. On request, we provide mill test reports or sample pieces so size, grade and wall thickness can be verified before bulk production.
Custom production. Size, material grade (WP304/304L/316/316L/321) and marking are produced against your confirmed drawing.
QC & documentation. Dimensional inspection, agreed packaging, and shipping documents prepared per your destination port requirements.
Factory & Certification
Tianjin Baode Steel Co., Ltd has produced stainless, carbon and alloy steel pipe fittings since 2006.
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ISO 9001:2015 · No. 1952024Q0837R0S |
ISO 14001:2015 · No. 1952024E0437R0S |
ISO 45001:2018 · No. 1952024S0379R0S |
Certificates valid through Sep 9, 2027. Also holds AAA Credit Enterprise rating. API/ASTM/GB documentation for this product available on request.
Quality Control Process
Tap a card to see the check performed at that stage.
Incoming raw material. Mill certificates and material grade checked against ASTM A403 before cold forming.
Wall-thickness monitoring. Checked during mandrel forming to catch thinning at the bend early.
Dimensional & visual inspection. OD, center-to-end dimension and bevel angle checked against ASME B16.9 tolerances.
Final packaging check. Verified against the order packing list before case/pallet packaging and container loading.
Customer Cases
Client names and contract references withheld under NDA. Figures below are from a single shipped order.
DN150 (6″) 90° long-radius elbows in WP316L, SCH10S, produced to ASME B16.9 with mill test reports for a scheduled plant turnaround. Shipped from Tianjin in 18 days against a 15-day standard lead time; accepted at the client's incoming dimensional inspection with no rejects, and a repeat order followed the next quarter.
DN150 (6″) 90° elbows in WP316L with a smooth machined bore for frequent CIP cleaning cycles. Low-carbon grade chosen for weld integrity; sample pieces and mill test reports were approved before bulk production. Consignment loaded as 12 wooden cases in a 20GP container.
Logistics & After-Sales
Packaging & container loadingSmall pieces packed in wooden cases; larger pieces on wooden pallets. 20GP holds ≈20 wooden cases (~18–22 t); 40HQ holds ≈40 (~26–28 t), depending on size mix. |
Warranty & support1-year warranty from shipment against manufacturing defects (excludes misuse or improper installation). Contact our export team with your order reference for a replacement or repair. |
Frequently Asked Questions
Hover a question to expand the answer.
Nominal size DN150 (6″ NPS), produced to ASME/ANSI B16.9, B16.28, DIN 2605, JIS B2313, GB/T12459 and GB/T13401, wall thickness SCH5S–SCH160S. Available in ASTM A403 grades WP304, WP304L, WP316, WP316L and WP321, depending on the corrosion resistance and welding performance your project requires.
The elbow is formed by cold working with mandrel forming, which keeps wall thickness more even around the bend than basic press-bending - less thinning at the outer radius, where fittings are most likely to fail first.
MOQ is 1 piece. Standard lead time is 15 days from deposit, excluding peak season, which can extend delivery to around 30 days for larger orders.
ISO 9001:2015 (Cert. No. 1952024Q0837R0S), ISO 14001:2015 (No. 1952024E0437R0S) and ISO 45001:2018 (No. 1952024S0379R0S), all valid through Sep 9, 2027, plus AAA Credit Enterprise rating. API/ASTM/GB product-specific certificates available on request
Products carry a 1-year warranty from shipment, covering manufacturing defects; it doesn't cover damage from misuse or improper installation. Contact our export team with your order reference for a replacement or repair solution.
Request a Quote
Send size, grade, wall thickness/schedule, connection type and quantity - we'll confirm feasibility and quote against your standard.
Request a QuoteTel: +86-022-60383557 | Email: export@jundesteelpipe.com
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