| Customization: | Available |
|---|---|
| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
|
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Fujian Blue sky Pipe Manufacturing Co., Ltd., originally established as Zhejiang Blue sky Steel Pipe Manufacturing Co., Ltd., made a strategic move to the vibrant Wendu Industrial Zone, Fuding in 2013. Spanning across an impressive 26,600 m²,with a well-planned construction area of 11,800 m², the company has excelled in crafting top-notch seamless steel tubes/pipes for over 30 remarkable years.
| Material | 10#-45#, 16Mn, A53-A369, Cr-Mo alloy, Q195-Q345, ST35-ST52, 10#, 20#, 45#, 16Mn, A213, A315, 30CrMo, Q195, Q215, Q235, Q345, ST35, St37, St45, St52 |
| Surface | Black/ Bright |
| Standard | DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094- 2000, GB/T3639, JIS G3101 |
| Size | OD 15mm-75mm |
| Thickness 1-14mm | |
| Processing | Cold rolled/ Cold drawn |
| 1. BK (+C) No heat treatment after last cold forming process. | |
| 2. BKW (+LC) After last heat treatment there is a light finishing pass ( cold drawing) | |
| 3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed. | |
| 4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere. | |
| 5. NBK (+N) After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. | |
| Packing | Woven bag/ Wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request. |
| Delivery time | Normally 30-40 working days |
| GRADE | CONDITION | ||||||||||||
| +C | +LC | +SR | +A | +N | HRC | ||||||||
| Rm | A% | Rm | A% | Rm | Rel | A% | Rm | A% | Rm | Rel | A% | ||
| ≤ | |||||||||||||
| 20# | 550 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 410 | 245 | 25 | ---- |
| 45# | 645 | 8 | ---- | ---- | ---- | ---- | ---- | 590 | 14 | 600 | 355 | 16 | ---- |
| 40Cr | 780 | 10 | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | 22~30 |
| 40Mn2 | 780 | 10 | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | 22~30 |
| 37Mn5 | 780 | 12 | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | 20~27 |
| OD * ID | Allowable deviation of outer diameter | Allowable deviation of inner diameter |
| 18*16 22*20 22.5*20 24*21 39.5*36 | 0/+0.1 | 0/+0.039 |
| 24*20 24*22 30*28 32*30 | ||
| 26.2*18 27.2*18 28.2*22.7 | ±0.05 | ±0.05 |
| 30.2*25 31.2*24 | ±0.1 | |
| 27.2*19 30.2*24 33.2*24 33.2*28 35.2*28 35.2*31 37.2*32 37.3*33 | -0.15/-0.05 | |
| 37.5*32 41.5*37 | +0.05/+0.15 | |
| 26.2*19 26.2*20 30.2*26 32.2*24 37.2*31 41.2*35.8 | -0.25/-0.05 | |
| 30.35*24 37.35*31 | -0.1/0 |
| Equivalent Material referance: | ||||||
| GB | TOCT | ASTM | BS | JIS | NF | DIN |
| 20 | 20 | 1020 | 050A20 | S20C | XC18 | C22,CK22 |
| 45 | 45 | 1045 | 080M46 | S45C | XC45 | C45,CK45 |
| 40Cr | 5140 | 41Cr4 | SCR440 | 41Cr4/38Cr4 | 41Cr4/42Cr4 | |
| 40Mn2 | 1340 | SMn438 | 42Mn6 | |||
| 37Mn5 | ||||||
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