C70600 90° Long Radius Butt Weld Elbow – DIN 86019
The C70600 90° Long Radius Butt Weld Elbow is a premium copper-nickel pipe fitting engineered for harsh marine and chemical environments. Manufactured to DIN 86019 with seamless construction, it delivers exceptional resistance to seawater, chlorides, and high-temperature oxidation - outperforming standard 304/316 stainless steel in saline service. Trusted by major offshore operators including Pemex, this elbow is the go-to choice for seawater piping, marine cooling systems, and oil & gas platforms.
Technical Specifications
| Parameter | Specifications |
| Type | 90° Long Radius Butt Weld Elbow (LR BW) |
| Outside Diameter | 76 mm |
| Wall Thickness | 2.0 mm |
| Bend Radius | 1.5D (Long Radius) |
| Material Grade | C70600 (CuNi 90/10) |
| Standard | DIN 86019 |
| End Type | Beveled Ends for Butt Welding |
| Construction | Seamless |
| Heat / Lot No. | B2602011-7 (full traceability) |
| Certification | EN 10204 Type 3.1 available |
Material Advantages - Why C70600?
- Seawater corrosion resistance - C70600 delivers excellent performance against seawater attack, far outperforming 304 stainless steel (poor) and 316 stainless steel (moderate).
- Chloride pitting resistance - Unlike 304 (poor) and 316 (low resistance), C70600 offers excellent protection against pitting in chloride-rich media.
- Biofouling resistance - The copper content naturally inhibits marine organism attachment, a property neither 304 nor 316 stainless steel can match.
- Weldability - Excellent across all three materials, but C70600 combines this with the best overall corrosion profile.
- High-temperature oxidation resistance - Maintains integrity at elevated temperatures, matching 304/316 stainless steel.
- Stress corrosion cracking - C70600 is immune to chloride stress corrosion cracking, a common failure mode for stainless steels.
- In short: C70600 is 100% seawater-proof and built for continuous immersion and splash-zone service.
Applications
-
Offshore oil & gas platforms (Pemex, NOC projects)
- Shipbuilding & marine seawater cooling pipelines
- Desalination plants
- Chemical processing (chloride-bearing media)
- Coastal power plant cooling water systems
- Fire water systems on marine vessel
Project Reference: Qualified and supplied for Pemex offshore projects in the Gulf of Mexico.
Quality Assurance
- Full traceability from raw material to finished product via heat/lot number
- EN 10204 Type 3.1 material certificates issued with every order
- Third-party inspection (SGS, BV, TÜV) available upon request
- nterchangeable standards - DIN 86019 aligns with EN and ASTM equivalents for seamless project approval
Complementary Products
We supply the complete C70600 piping package:
| Product | Standard | Description |
| C70600 Seamless Pipe | DIN 86019 | Matching OD × WT for butt weld joints |
| C70600 Flanges | DIN / ANSI | Weld neck, slip-on, blind flanges |
| A194 Grade 8S Nuts | ASTM A194 | For C70600 flange bolting |
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