Label & Tag

steel / iron welding tube for aluminum / copper / plastic film foil core



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1. Our chemical composition

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ID | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Al (%) | Rem |
￠75 | ≤ 0.20 | ≤ 0.35 | ≤ 0.60 | ≤ 0.40 | ≤ 0.40 | ? | ? | ? |
￠76.2(76) | ≤ 0.20 | ≤ 0.35 | ≤ 0.60 | ≤ 0.40 | ≤ 0.40 | ? | ? | ? |
￠150 | ≤ 0.25 | ≤ 0.35 | 0.30 ~ 0.90 | ≤ 0.40 | ≤ 0.40 | ? | ? | ? |
￠152.4 | ≤ 0.25 | ≤ 0.35 | 0.30 ~ 0.90 | ≤ 0.40 | ≤ 0.40 | ? | ? | ? |
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2. Our mechanical property

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Specification ? Item | ￠75 | ￠76 | ￠76.2 | ￠152.4 | ￠200 |
Elongation % | ≥ 17 | ≥ 17 | ≥ 17 | ≥ 17 | ≥ 17 |
Tensile strength (N/mm2) | ≥ 390 | ≥ 390 | ≥ 390 | ≥ 490 | ≥ 490 |
Yield strength N/mm2) | ≥ 275 | ≥ 275 | ≥ 275 | —— | —— |
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3. Our tolerance and specifications

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spec ? item | ￠76.0 tube | ￠76.2 tube | ￠152.4 tube | ￠152.4 tube |
ID and tolerance | 76.2 + 0.05 / - 0 | 76.2 + 0.05 / - 0 | 152.4 + 0.05 ?/ - 0.05 | 152.4+0.10 / -0.10 |
OD | 80.2 | 81.2 | 160.4 | 164.4 |
Wall thickness and tolerance | 2.0 + 0.05? /? - 0 | 2.5 + 0.05 / - 0 | 4.0 + 0.05 / - 0.05 | 6.0 + 0.05 / - 0.05 |
Bend rate(mm/m) | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 |
roundness | ≤ 0.05 | ≤ 0.05 | ≤ 0.10 | ≤ 0.20 |
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4. Our advantage

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(1). We set up in 2004 and?have more than 90% market occupancy rate in China;

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(2). Good reputation?and popular among?Aluminum foil ,Copper foil and plastic film industry;

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(3). We start our productions from steel strip , so we can control the quality as well;

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(4). We have our own development department for new material research;

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(5).?Phenomenal experience and cooperation with big client in the world;

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(6).?Great performance for increasing rate of finishing product;

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(7). Fast delivery time;

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(8). High performance cost ratio;

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(9). Good communication skills,?reliable service and great understandings for customers;.