1.ERW welded steel pipe:
| Product standards | Steel grade | Outer diameter range mm | Outer diameter tolerances | Opheteness | Wall thickness tolerances | Threaded buckle type | Straightness | Weight tolerances | |||
| API5CT | H40～P110 | 60.3～339.70 | D＜4-1/2 | ±0.79mm | – | -12.5%t
-5%t～+5%t |
vitta | NU、EU、IJ | ≤0.2%L,
Tube ends 1.5m≤3.18mm |
+6.5%/-3.5% | |
| D≥4-1/2 | +1%/-0.5% | casing | STC、LC、BC、XC | ||||||||
| Q/FT 101 | H40、J55、K55
M65、N80、L80 |
114.30～339.70 | D≤9-5/8 | -0.20%～+0.7% | 0.50% | t≤7mm | ±0.2mm | casing | STC、LC、BC、XC | ≤0.2%L,
Tube ends1.5m≤3.0mm |
|
| D≤13-3/8 | -0.30%～+0.85% | 0.40% | T＞7mm | ±0.3mm | |||||||
| C90、C95、
T95、P110 |
114.30～339.70 | D≤9-5/8 | -0.15%～+0.60% | 0.45% | t≤7mm | ±0.2mm | casing | STC、LC、BC、XC | |||
| D≤13-3/8 | -0.25%～+0.75% | 0.35% | t＞7mm | ±0.3mm | |||||||
| FT-T(TT) | 114.30～339.70 | -0.15%/+0.25% | 0.30% | ±0.15mm | casing | FNK-1 | |||||
2.LSAW
| Specification | API 5L PSL 1/PSL2; En10219; A671/A672; ASTM A252 |
| Steel Grade | Grade A; Grade B; X42; X46; X52; X56; X60; X65; X70; X80 and etc. S275JRH; S275J0H; S275J2H; S355JRH; S355J0H; S355J2H; CL10 ~ CL13; CA55; B65; B70; C70; Gr.2/Gr.3; |
| Outside Diameter (O.D.) | 406.4mm ~ 1524mm |
| Wall Thickness | 5.0mm ~ 40mm or more |
| Length | 3M ~ 12.5M |
| Pipe End | Beveled End, Plain ends |
| Surface | Fusion Bond Epoxy Coating; Coal Tar Epoxy; 3PE; Vanish Coating; Bitumen Coating; Black Oil Coating as Per Customer’s requirement |
3.SSAW:
| Specification | API 5L/ASTM A53/EN10217/EN10219 |
| Steel Grade | Grade B/X42/X46/X52…S235JRH/S355… and etc. |
| Outside Diameter | 219.1mm to 3048.0mm (8” to 120”) |
| Wall Thickness | 6.0mm to 25.0mm |
| Length | 3M to 40M or customized |
Welded steel pipe, with its diversified materials, flexible size specifications and a wide range of applications, plays an irreplaceable role in construction, machinery, automobile, shipbuilding, petrochemical and other industries. According to the different materials, it can be divided into carbon steel welded pipe, stainless steel welded pipe, alloy steel welded pipe, etc.
Standard: API 5L, API 5CT, SY/T5037, SY/T5040, GB/T9711.1,GB/T9711.2, A, B, X42-X80, L175-L555,L245NB, etc.
Material: 1.0033, 08F, A53, A106, Q235, Q345b, etc.
Package:
1.Bundle packing or in bulk
2. Bevelled or plain ends as per buyer’s request
3. Marks: as per customer’s request
4. Metal or plastic protecting caps at pipe ends
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