Copper–phosphorus, no silver
Ag not listed; P 6.6–7.4%; Cu balance
- Solidus–liquidus
- 710–820°C
- Reference designation
- B-Cu93P / CP202
STEEL GEMS · HVAC & REFRIGERATIONCopper. Precisely
Copper. Precisely
what your project needs.
From flexible coils to straight tubes, connecting fittings and brazing fillers. Explore the dimensions, clarify your specification and send one complete enquiry.
ONE CONNECTED PRODUCT RANGEChoose the form.
Choose the form.
Then specify the detail.
01 / PRODUCT FAMILY
Soft copper coils
Annealed coils for enquiries requiring flexible copper tubing. Compare ASTM B280, JIS and light-wall options.
Explore specifications ↗02 / PRODUCT FAMILYHard & heavy-wall tubes
Straight tubes with standard-specific OD and wall combinations. Specify hard or half-hard temper.
Explore specifications ↗03 / PRODUCT FAMILYCopper capillary fittings
Elbows, couplers, tees, reducers and caps. Select the tube OD and confirm each end connection.
Explore specifications ↗04 / PRODUCT FAMILYBrazing filler metals
Copper–phosphorus and silver-bearing alloys in rods, wires or strips. Match the filler to your joining procedure.
Explore specifications ↗SPECIFY WITH CLARITY
Find your copper tube.
Select a range and diameter. Every row keeps its own wall thickness and weight.
Soft / annealed · 15.24 m coil · 7 size / wall combinations
| OD, inches | OD, mm | Wall, mm | Approx. kg/m | Enquiry |
|---|---|---|---|---|
| 1/4″ | 6.35 | 0.76 | 0.120 | Enquire ↗ |
| 3/8″ | 9.52 | 0.81 | 0.199 | Enquire ↗ |
| 1/2″ | 12.70 | 0.81 | 0.272 | Enquire ↗ |
| 5/8″ | 15.88 | 0.89 | 0.374 | Enquire ↗ |
| 3/4″ | 19.05 | 0.89 | 0.454 | Enquire ↗ |
| 3/4″ | 19.05 | 1.07 | 0.541 | Enquire ↗ |
| 7/8″ | 22.22 | 1.14 | 0.675 | Enquire ↗ |
Reference dimensions and approximate weights for enquiry preparation. Confirm tolerances, standard edition, ordered temper and actual offered lengths. Sizes are tube OD, not nominal NB/NPS. No working-pressure rating is inferred from this table.
A SMALL DETAIL. A BETTER ENQUIRY.½ inch means
½ inch means
12.70 mm tube OD here.
Refrigeration copper is listed by outside diameter. Do not substitute nominal pipe sizes or assume that the same inch label means the same OD.
Specify the application, refrigerant, design conditions and equipment manufacturer's requirements. Standard name alone does not establish suitability for every refrigeration system.
Understand nominal pipe sizes →MAKE THE CONNECTION
Copper fittings.
Capillary fitting enquiries referencing ASME B16.22. Exact size combinations, socket dimensions and end arrangements need confirmation.
| Product | Tube OD range | What to specify |
|---|---|---|
| 90° copper elbow ↗ | 1/4–4-1/8 in | Both connection sizes; socket / tube-end arrangement |
| 45° copper elbow ↗ | 1/4–4-1/8 in | Both connection sizes; socket / tube-end arrangement |
| Reducing 90° elbow ↗ | 1/4–2-1/8 in | Inlet × outlet OD and end arrangement |
| Coupler / socket ↗ | 1/4–5-1/8 in | Tube OD and socket dimensions |
| Equal tee ↗ | 1/4–4-1/8 in | Run × run × branch OD |
| Reducing coupler: socket ends ↗ | 1/4–4-1/8 in | Large × small tube OD |
| Reducing coupler: alternate ends ↗ | 1/4–4-1/8 in | Large × small OD; confirm socket / tube ends by drawing |
| Reducing tee ↗ | 1/2–1-3/8 in | Run × run × branch; exact combination required |
| Copper end cap ↗ | 1/4–4-1/8 in | Tube OD and cap dimensions |
COMPLETE THE MATERIAL PACKAGE
Brazing filler metals.
Rod, wire and strip enquiries; preferred dimensions 1.5, 2.0 and 2.5 mm, subject to the offered alloy and form.
Silver–copper–phosphorus, nominal 2% Ag
Ag 1.5–2.5%; P 5.9–6.7%; Cu balance
- Solidus–liquidus
- 645–825°C
- Reference designation
- B-Cu92PAg / CP105
Silver–copper–phosphorus, nominal 5% Ag
Ag 4.5–5.5%; P 5.7–6.3%; Cu balance
- Solidus–liquidus
- 645–815°C
- Reference designation
- B-Cu89PAg / CP104
Silver–copper–zinc, 43–45% Ag
Ag 43–45%; Cu 29–31%; Zn 24–28%
- Solidus–liquidus
- 675–735°C
- Reference designation
- B-Ag44CuZn / AG203
Melting ranges are not application temperature ratings. Confirm the applicable filler classification and edition, base-metal compatibility, joint design and approved joining procedure before selection.
READY FOR A CLEARER QUOTATION?Six details.
Six details.
One complete enquiry.
Steel Gems · Mumbai, India
sales@steel-gems.com · +91 96199 26607
- Product & dimensionsTube OD × wall, or every fitting connection size.
- Material & conditionDHP copper where specified; exact standard, edition and temper.
- Quantity & lengthMetres, coils, pieces or kilograms with units clearly stated.
- Service requirementsApplication, refrigerant and equipment / project specification.
- Inspection & documentsConfirm chemistry, cleanliness, end protection and required test records.
- Delivery & packingDestination, date, approved make, packing and export scope.
Specify it for your project.
International references for HVAC & refrigeration copper products. Select the required specification system, then complete your enquiry. Options are available for technical review; compliance and supply capability require written confirmation.
1 · Choose reference standards
Selecting several references requests a compliance review. It does not establish equivalence or dual certification. Hidden selections remain in your enquiry.
0 reference groups selected
2 · Complete buying details
Keep these distinctions clear
Class, PN and JIS K are separate rating systems; no automatic conversion or drilling compatibility is implied. NPS / DN is nominal, not actual OD. Similar grades are comparison candidates only. ASTM / ASME and EN designations are not automatic substitutes.
Certificates, inspection, IBR and project approvals are separate requirements. An ISO 9001 quality-system certificate is not a product approval. Current issuer editions may differ from the edition required by your contract.
3 · Review and share enquiry
STEEL GEMS — INTERNATIONAL SPECIFICATION ENQUIRY Product: HVAC & refrigeration copper products Requested references: To confirm Exact grade / UNS / delivery condition: To confirm Required edition / addenda: To confirm Size, actual OD, wall / schedule and units: To confirm Rating system and value (Class / PN / JIS K / Table): To confirm Type, construction, connection, facing / thread: To confirm Quantity with unit: To confirm Documents / tests requested: To confirm Delivery city / country / ZIP / port: To confirm Project notes / origin restrictions / service conditions: To confirm Please review applicable scope, compatibility, material origin, manufacturing route, compliance, availability and commercial terms. This is an enquiry, not an engineering approval.
WhatsApp opens a draft for you to review and send. Files are not attached automatically; use the RFQ upload page or attach them separately.
Official standard catalogues
Reference summaries only. Confirm full scope and required edition with the issuer and project specification.
Before you order
Does the range table confirm ready stock?
No. It supports specification and enquiry preparation. Make, stock, lead time, dimensions and inspection documentation are confirmed in the written quotation.
Can I use bursting pressure as working pressure?
No. Allowable working pressure depends on the governing design method, temperature, material condition, joints and application. No working-pressure rating is offered by these reference tables.
Are the product images actual stock photographs?
They are illustrative product visuals. Ask our team for photographs and documentation of the offered material.
Can you review a mixed copper package?
Send one itemised BOQ with tube sizes, fitting combinations, brazing filler requirements and delivery details. Our team will review feasibility and quote the offered scope.