Wrought copper buttweld fittings for plumbing, HVAC & industrial piping.
Material Overview
Copper buttweld fittings are wrought elbows, tees and reducers welded directly to copper pipe or tube, used across plumbing, refrigeration and general industrial piping where a permanent, full-strength joint is required.
Grades & Standards
Available grades and the manufacturing standards commonly applied to copper buttweld fittings.
Standards Explained
Technical Data
DHP Copper (C12200) is the standard grade for copper buttweld fitting stock.
Chemical Composition (% by weight)
| Grade | UNS No. | Cu (incl. Ag, min) | P |
|---|---|---|---|
| DHP Copper | C12200 | 99.9 | 0.015 – 0.040 |
| ETP Copper | C11000 | 99.90 | — |
Composition per ASTM B75 / ASTM B88. Mill test certificates issued per EN 10204 3.1 on request.
Mechanical Properties — DHP Copper (C12200)
| Property | Annealed | Half-Hard / Drawn |
|---|---|---|
| Tensile Strength | 220 MPa | 310 MPa |
| Yield Strength | 70 MPa | 275 MPa |
| Elongation | 45% | 8% |
| Density | 8.94 g/cm³ | 8.94 g/cm³ |
Typical values; exact temper confirmed at enquiry stage.
Dimensions
Center-to-end dimension (A) for 90° LR elbows = 1.5 × NPS; for 45° LR elbows (B) = A × tan 22.5°, per ASME B16.9. Equal tee center-to-end (C) = A.
| NPS | OD (in) | 90° Elbow — A (in) | 45° Elbow — B (in) | Equal Tee — C (in) |
|---|---|---|---|---|
| 1/2" | 0.840 | 0.75 | 0.31 | 0.75 |
| 3/4" | 1.050 | 1.13 | 0.47 | 1.13 |
| 1" | 1.315 | 1.50 | 0.62 | 1.50 |
| 1-1/4" | 1.660 | 1.88 | 0.78 | 1.88 |
| 1-1/2" | 1.900 | 2.25 | 0.93 | 2.25 |
| 2" | 2.375 | 3.00 | 1.24 | 3.00 |
| 2-1/2" | 2.875 | 3.75 | 1.55 | 3.75 |
| 3" | 3.500 | 4.50 | 1.86 | 4.50 |
| 4" | 4.500 | 6.00 | 2.49 | 6.00 |
| 6" | 6.625 | 9.00 | 3.73 | 9.00 |
| 8" | 8.625 | 12.00 | 4.97 | 12.00 |
Formula-derived reference values per ASME B16.9. Concentric & eccentric reducer lengths vary by NPS pair — full dimensional drawings with tolerances are issued with every order.
Send us your drawings, sizes and standards — our team will get back to you with a detailed quotation for your Copper-Nickel, Copper, Brass or Bronze piping requirement.
