Chemical Composition & Mechanical Property
| copper Alloy | Chemical Composition | Temper | Mechanical Property | |||
| Copper % | Phosphorus % | Tensile Strength MPa | Elongation % | Hardness HV | ||
| Cu-DHP | ≥ 99.90 | 0.015-0.040 | R220 | ≥ 220 | ≥ 40 | 40-70 |
| Cu-DHP | ≥ 99.90 | 0.015-0.040 | R250 | ≥ 250 | ≥ 30 | 75-100 |
| Cu-DHP | ≥ 99.90 | 0.015-0.040 | R290 | ≥ 290 | ≥ 3 | ≥ 100 |
| Copper Alloy | Temper | Cleanness | Standard |
| Cu-DHP | R220 | ≤ 38mg/m² | EN 12735-1 |
| Cu-DHP | R2250 | ≤ 38mg/m² | EN 12735-1 |
| Cu-DHP | R290 | ≤ 38mg/m² | EN 12735-1 |
| Actual Copper Tube Size Outside Diameter x Wall Thickness | Weight (kg/m) | Safe Working Pressure (kPa) | ||
| metric (mm) | imperial (inches) | 50ºC | 75ºC | |
| 6.35 x 0.56 | 1/4" x 24swg | 0.091 | 7,069 | 5,862 |
| 6.35 x 0.61 | 1/4" x 23swg | 0.098 | 7,760 | 6,435 |
| 6.35 x 0.71 | 1/4" x 22swg | 0.113 | 9,175 | 7,608 |
| 6.35 x 0.81 | 1/4" x 21swg | 0.126 | 10,635 | 8,819 |
| 9.52 x 0.56 | 3/8" x 24swg | 0.141 | 4,584 | 3,801 |
| 9.52 x 0.61 | 3/8" x 23swg | 0.153 | 5,018 | 4,161 |
| 9.52 x 0.71 | 3/8" x 22swg | 0.176 | 5,900 | 4,893 |
| 9.52 x 0.81 | 3/8" x 21swg | 0.198 | 6,800 | 5,639 |
| 12.70 x 0.56 | 1/2" x 24swg | 0.191 | 3,389 | 2,810 |
| 12.70 x 0.61 | 1/2" x 23swg | 0.207 | 3,705 | 3,072 |
| 12.70 x 0.71 | 1/2" x 22swg | 0.239 | 4,344 | 3,603 |
| 12.70 x 0.81 | 1/2" x 21swg | 0.271 | 4,994 | 4,141 |
| 15.88 x 0.56 | 5/8" x 24swg | 0.241 | 2,688 | 2,229 |
| 15.88 x 0.61 | 5/8" x 23swg | 0.262 | 2,936 | 2,435 |
| 15.88 x 0.71 | 5/8" x 22swg | 0.303 | 3,438 | 2,851 |
| 15.88 x 0.81 | 5/8" x 21swg | 0.343 | 3,945 | 3,270 |
| 15.88 x 0.91 | 5/8" x 20swg | 0.383 | 4,459 | 3,698 |
| 15.88 x 1.02 | 5/8" x 19swg | 0.426 | 5,031 | 4,172 |
| 19.05 x 0.56 | 3/4" x 24swg | 0.291 | 2,228 | 1,848 |
| 19.05 x 0.71 | 3/4" x 22swg | 0.336 | 2,846 | 2,360 |
| 19.05 x 0.91 | 3/4" x 20swg | 0.464 | 3,684 | 3,055 |
| 19.05 x 1.14 | 3/4" x 0.045" | 0.574 | 4,668 | 3,871 |
| 22.22 x 0.91 | 7/8" x 20swg | 0.545 | 3,138 | 2,602 |
| 22.22 x 1.14 | 7/8" x 0.045" | 0.675 | 3,970 | 3,292 |
| 22.22 x 1.40 | 7/8" x 0.055" | 0.819 | 4,929 | 4,088 |
Plastic Bag Packing
- Carton Packing (with drier)
- Wooden Pallet
- Plastic Film Packing
SHANDONG TONGMAO SPECIAL STEEL CO., LTD is reputed at supplying stainless steel pipe, carbon steel seamless pipe ,alloy steel pipe, hot-rolled steel pipe, cold rolled steel pipe, galvanized steel pipe, welded steel pipe, precision steel pipe , also supply steel plate , steel coil and lead sheet etc.
Our Company combined production, trade, the development of new products and services together , is one of the provincial large-scale iron and steel enterprises. Factory products standards are qualified to meet ISO\GB\ ASTM \ EN \ BS \ JIS etc.
Our company insists the principle of honesty and trustworthiness, has received trust and support from both the domestic and foreign manufacturers.
We will always adhere to the belief of credibility is the life to develop international market, and try our best to be skilled, highly responsible team ,through win-win cooperation, to meet the brilliant tomorrow!
How can I contact with your company?
We are always ready to serve you via Email, Wechat or Mobile telephone.
What is your working time?
Monday-Saturday : 8:00AM-17:30PM (Beijing time, GMT+08.00)
We have public holiday during May.1-3, Oct.1-7 and Chinese New Year holiday . For detail,
please see our update holiday notice. During these period, if you have a demand, Please
send me an email.
Do you provide free samples?
Yes, we can provide a free small sample for testing, buyer should bear all the shipping costs.
What is your payment terms?
T/T,L/C,D/A,D/P,Western Union,MoneyGram,Paypal
We are doing the best to match your demand.
What is the lead time?
Usually sample lead time is 7 days after payment has been confirmed.
Normal order is 10-30days,it depends on customers' quantity.
Anyway,we try to offer good-quality products as soon as possible.