| Product Type: Carbon Seamless Honed Steel Tube,Cold Drawn Carbon Steel Seamless Honed Tube,Honed Tube Carbon Seamless Saw Steel Pipe Tube |
| Material: ST52,CK45,4140,SCM440,16Mn,42CrMo,E355,Stainless Steel 304/316,Duplex 2205,etc. |
| Delivery Condition: BK, BK+S, GBK, NBK |
| ID Size : 20mm – 1500mm |
| Length: max 16m |
| Type: Seamless, Hot Rolled, Cold Rolled, Cold Drawn |
| Straightness: ≤ 0.5/1000 |
| Roughness: 0.2-0.4 u |
| Tolerance EXT: DIN2391, EN10305, GB/T 1619 |
| Tolerance INT: H7,H8,H9 |
| Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends. |
| Packing: Bundle with steel strip and PE sheet or wooden case |
| Chemical Composition: | |||||||||||
| Steel grade | Chemical composition,% | ||||||||||
| C | Si | Mn | P | S | Cr | ||||||
| ≤ | |||||||||||
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ||||||||
| 16Mn | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0/03 | 0.25 | |||||
| ST52(E355) | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.25 | |||||
| SAE1026(25Mn) | 0.22-0.28 | 0.15-0.35 | 0.6-0.9 | 0.04 | 0.05 | / | |||||
| 45# | 0.42-0.5 | 0.17-0.37 | 0.5-0.8 | 0.025 | 0.02 | 0.25 | |||||
| Mechanical Property: | |||||||||||
| Delivery | cold finished(hard)(BK) | Cold drawn and stress-relieved(BK+S) | |||||||||
| condition | |||||||||||
| Steel grade | Rm MPa | Elongation | Rm MPa | ReH MPa | Elonggation | ||||||
| A5(%) | A5(%) | ||||||||||
| 20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 | ||||||
| 16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 | ||||||
| ST52(E355) | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 | ||||||
| SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥12 | ||||||
| 45# | ≥650 | ≥5 | ≥600 | ≥510 | ≥12 | ||||||
| Standard Size: | ||||||||
| I.D(mm) | O.D(mm) | WT(mm) | I.D(mm) | O.D(mm) | WT(mm) | I.D(mm) | O.D(mm) | WT(mm) |
| 40 | 50 | 5 | 90 | 100 | 5 | 140 | 156 | 8 |
| 40 | 52 | 6 | 90 | 105 | 7.5 | 140 | 160 | 10 |
| 40 | 55 | 7.5 | 90 | 110 | 10 | 140 | 165 | 12.5 |
| 40 | 58 | 9 | 90 | 114 | 12 | 140 | 168 | 14 |
| 50 | 60 | 5 | 95 | 105 | 5 | 140 | 170 | 10 |
| 50 | 65 | 7.5 | 95 | 110 | 7.5 | 140 | 180 | 20 |
| 50 | 70 | 10 | 100 | 110 | 5 | 150 | 170 | 10 |
| 60 | 70 | 5 | 100 | 115 | 7.5 | 150 | 175 | 12.5 |
| 60 | 72 | 6 | 100 | 120 | 10 | 150 | 180 | 15 |
| 60 | 75 | 7.5 | 100 | 125 | 12.5 | 160 | 180 | 10 |
| 60 | 80 | 10 | 100 | 127 | 13.5 | 160 | 185 | 12.5 |
| 63 | 73 | 5 | 100 | 130 | 15 | 160 | 190 | 10 |
| 63 | 75 | 6 | 110 | 125 | 7.5 | 160 | 200 | 20 |
| 63 | 76 | 6.5 | 110 | 130 | 10 | 170 | 190 | 10 |
| 63 | 78 | 7.5 | 110 | 140 | 15 | 170 | 195 | 12.5 |
| 63 | 80 | 8.5 | 115 | 130 | 7.5 | 170 | 200 | 15 |
| 63 | 83 | 10 | 115 | 135 | 10 | 180 | 200 | 10 |
| 70 | 80 | 5 | 120 | 135 | 7.5 | 180 | 205 | 12.5 |
| 70 | 82 | 6 | 120 | 140 | 10 | 180 | 210 | 15 |
| 70 | 85 | 7.5 | 120 | 145 | 12.5 | 180 | 220 | 20 |
| 70 | 90 | 10 | 120 | 150 | 15 | 200 | 220 | 10 |
| 75 | 85 | 5 | 125 | 140 | 7.5 | 200 | 225 | 12.5 |
| 75 | 90 | 7.5 | 125 | 145 | 12.5 | 200 | 230 | 15 |
| 75 | 95 | 10 | 125 | 150 | 12.5 | 200 | 235 | 17.5 |
| 80 | 90 | 5 | 125 | 152 | 13.5 | 200 | 245 | 22.5 |
| 80 | 92 | 6 | 125 | 155 | 15 | 220 | 250 | 15 |
| 80 | 95 | 7.5 | 125 | 160 | 17.5 | 220 | 270 | 25 |
| 80 | 100 | 10 | 130 | 145 | 7.5 | 220 | 273 | 26.5 |
| 80 | 102 | 11 | 130 | 150 | 10 | 240 | 270 | 15 |
| 80 | 105 | 12.5 | 130 | 160 | 15 | 250 | 290 | 20 |
| 80 | 110 | 15 | 135 | 160 | 12.5 | 250 | 299 | 24.5 |
| Special requirement | 230.5 | 254 | 11.75 | |||||
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FAQ
Q: Are you a factory or a trading company? A：We are manufacturer and trader. You are welcome to visit our factory.
Q: Can you guarantee the quality of your products? A: We always insist on the best quality. We conduct 2 quality inspections one by one. Our mission: to be a world-class professional, reliable and excellent steel supplier.
Q: Do you provide samples? ls it free or 2 extra? A: Samples can be provided to customers for free, but the freight is borne by the customer. The sample freight will be returned to the customer after our cooperation.
Q: What’s your minimum order quantity? A: We welcome you to try the MOQ 25T, loaded into 1*20GP. Largequantity can reduce your cost.
