Model No.: A53(A,B) Q235 Q345 Q195 Q215 St37 St42
For welded Steel Pipe, we have more than 10 production lines.We offer the service of cutting and punching. Our main products cover Rectangular Steel Pipe, Square Steel Pipe, Round Steel Pipe, LSAW Steel Pipe, ERW Steel Pipe, SSAW Steel Pipe, etc. OEM/ODM order are accepted. Any logo printing or design are free of charges.
| Name | Carbon/Alloy Welded Pipe |
| Standard | GB/T3091-1993,GB/T3092-1993,GB/T14291-1992,GB/T14980-1994, ANSI, ASME, ASTM, JIS, DIN, BS, EN (we can also produce according to drawing and standards provided by customers) |
| Material: | Q195-Q235, SS400, ST37-2, STK500, Q235A, Q235B, 12MnV, 14MnNb, 18Nb, 16MnRE, 16Mn, 20#, Q345, X42,X46, X60, X80 |
| Outer Diameter | 8-600mm |
| Length | Fixed or Random, by customer's requiremnts |
| Thickness | 2-60mm |
| Surface | Black Painting/Oiled |
| Categories/ Process Method | LSAW(Longigudinally Submerged Arc Welding) ERW(Electric Resistance Welding) SSAW(Spirally Submerged Arc Welding) |
| | Round/ square / oval / triangular / hexagonal / the diamond/octagon / semicircle round and other complex cross section steel tube |
| Technical | high - frequency welded |
| Package | 1. Bundle packing. 2. Bevelled end or plain end or warnished as per buyer's requestments. 3. Marking: as per customer's requests. 4. Painting varnish coating on the pipe. 5. Plastic caps at ends. 25 tons/container for pipe with usual outer diameter. For 20" container the max length is 6m;(diagonal loading) For 40" container the max length is 12m.(diagonal loading) |
| Quality | First grade |
| Application: | Tap water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction. For liquid transportation, water supply and drainage. For gas, gas, steam, liquefied petroleum gas. For structure: piling pipe, bridge; Dock, road, building structural tube, etc. |
| Place of Origin: | China |
| Productivity | 30000 Metric Tons per Month |
Chemical Composition and Mechanical Properties of ERW Steel Pipe
| Standard | Grade | Chemical Composition(max)% | Mechanical Properties(min) | |||||
| C | Mn | Si | S | P | Yield Strength (Mpa) | Tensile Strength (Mpa) | ||
| GB/T700-2006 |
Q235A | 0.22 | 1.4 | 0.35 | 0.050 | 0.045 | 235 | 370 |
|
Q235B | 0.2 | 1.4 | 0.35 | 0.045 | 0.045 | 235 | 370 | |
|
Q235C | 0.17 | 1.4 | 0.35 | 0.040 | 0.040 | 235 | 370 | |
| Q235D | 0.17 | 1.4 | 0.35 | 0.035 | 0.035 | 235 | 370 | |
| GB/T1591-2009 |
Q345A | 0.2 | 1.7 | 0.5 | 0.035 | 0.035 | 345 | 470 |
|
Q345B | 0.2 | 1.7 | 0.5 | 0.030 | 0.030 | 345 | 470 | |
|
Q345C | 0.2 | 1.7 | 0.5 | 0.030 | 0.030 | 345 | 470 | |
| BS En10025 | S235JR | 0.17 | 1.4 | - | 0.035 | 0.035 | 235 | 360 |
| S275JR | 0.21 | 1.5 | - | 0.035 | 0.035 | 275 | 410 | |
| S355JR | 0.24 | 1.6 | - | 0.035 | 0.035 | 355 | 470 | |
| DIN 17100 | ST37-2 | 0.2 | - | - | 0.050 | 0.050 | 225 | 340 |
| ST44-2 | 0.21 | - | - | 0.050 | 0.050 | 265 | 410 | |
| ST52-3 | 0.2 | 1.6 | 0.55 | 0.040 | 0.040 | 345 | 490 | |
| JIS G3101 | SS400 | - | - | - | 0.050 | 0.050 | 235 | 400 |
| SS490 | - | - | - | 0.050 | 0.050 | 275 | 490 | |
| API 5L PSL1/PSL2 | A | 0.22 | 0.9 | - | 0.03 | 0.03 | 210 | 335 |
| B | 0.26 | 1.2 | - | 0.03 | 0.03 | 245 | 415 | |
| X42 | 0.26 | 1.3 | - | 0.03 | 0.03 | 290 | 415 | |
| X46 | 0.26 | 1.4 | - | 0.03 | 0.03 | 320 | 435 | |
| X52 | 0.26 | 1.4 | - | 0.03 | 0.03 | 360 | 460 | |
| X56 | 0.26 | 1.1 | - | 0.03 | 0.03 | 390 | 490 | |
| X60 | 0.26 | 1.4 | - | 0.03 | 0.03 | 415 | 520 | |
| X65 | 0.26 | 1.45 | - | 0.03 | 0.03 | 450 | 535 | |
| X70 | 0.26 | 1.65 | - | 0.03 | 0.03 | 585 | 570 | |
Butt-welded pipe is formed by feeding a hot steel plate through shapers that will roll it into a hollow circular shape. Forcibly squeezing the two ends of the plate together will produce a fused joint or seam.
Packaging And Transportation
We offer different modes of transport depending on the customer's destination: rail transport and ship transport，etc.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards,Specifications, Package No., Contract No., Heat No., Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.
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