Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
Zhengzhou Huitong Pipeline Equipment Co., Ltd.
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special steel nickel alloy pipe 20Cb-3 Alloy 20 seamless welded pipe tube
1. Alloy 20 seamless welded pipe tube specification
| Product Name | Alloy 20 Steel Pipe/Tube | |
| Size | OD | 1/2"-24" |
| Thickness | sch20-sch160 | |
| Length | 5-20M | |
| Steel Material and Grade | ASTM A213 T5 T9 T11 T12 T22 ASTM A335 P5,P9,P11,P12,P22 | |
| Process Method | Cold drawn/cold rolled,Hydraulic cold drawn | |
| Standard | ASTM A450 | |
| Usage | Boiler,Superheater,and heat-exchanger,high pressure&temperature enviroment | |
| Surface | Bared Black Painting, Anti-Corrosion Coating | |
| Proctor | Plastic cap | |
| Package | Bundles, Bulk | |
| Inspection | With Hydraulic Testing, Ultrasonic testing or X-ray Test | |
| Certificate | ISO 9001-2000,ASTM 450 | |
| Date of Delivery | Less Than 15/20/25/30/40/50/60 Days According To The Quantity | |
| Payment: | L/C or T/T | |
| Port of Shipment | Xingang,China | |
2. Is It a Alloy 20 Pipe or a Alloy 20 Tube?
In some instances the terms may be used interchangeably, however there is one key difference between tube and pipe, particularly in how the material is ordered and toleranced. Tubing is used in structural applications so the outside diameter becomes the important dimension. Tubes are often put into applications such as medical devices that require precise outside diameters. The outside diameter is important since it will indicate how much it can hold as a stability factor. Where as
pipes are normally used to transport gasses or liquids making it important to know the capacity. Knowing how much can flow through the pipe is key. The circular shape of the pipe make it efficient when handling pressure from the liquid flowing through.
Alloy 20 seamless welded material introduction
| Commodity | Size | Rating | ASTM Specification |
| Welded Pipe | 6"-12" | 10s, 40s | ASTM 464 |
| Seamless Pipe | ½"-8" | 10s, 40s, 80s, 160 | ASTM 729 |
| Butt Weld Fittings | ½"-12" | 10s, 40s, 80s | ASTM 366 |
| Flanges | ½"-12" | 150#, 300# | ASTM 462 |
| Pressure Fittings | ½"-2" | 3000# | ASTM 462 |
| Stud Bolts | ½"-4" | Any Length | ASTM 468 |
| Seamless Tubing | 1/8" - 2" | .095" Wall & Below | ASTM 729 |
| Welded Tubing | 1/8" - 2" | .095" Wall & Below | ASTM 464 |
MSI offers a large selection of Alloy 20 pipe, valves, fittings, and fasteners seamless pipe, welded pipe, buttweld fittings, forged steel fittings, flanges, and tubing.
| Fe | Ni | Cr | Mo | Cu | Nb + Ta | Mn (max) | Si (max) | P (max) | S (max) | C (max) |
| Balance | 32 to 38 | 19 to 21 | 2 to 3 | 3 to 4 | (8 x C%) to 1 | 2 | 1 | 0.045 | 0.035 | 0.07 |
4. Alloy 20 steel pipe production technicians
