Introduction: In daily life, stainless steel water tanks are used frequently. For common stainless steel water tanks, the commonly used welding methods are spot welding, seam welding and argon arc welding.
The welding of the roof of the water tank requires full welding. There should be no leakage welding or spot welding. The top corner should also be fully welded. Welding must use sub-arc welding and stainless steel welding rods, non-standard welding operation is strictly prohibited.
The stainless steel tank support should be folded into a "concave" or "angle iron" shape, and no burr, fast mouth. The supporting welding should be full welding and spot welding is strictly prohibited to ensure the support strength. The distance between support bars is generally not more than 1 meter, and the size should meet the requirements of tensile strength. For special height tanks, the support rod size should be enlarged accordingly.
In the welding process, you need to pay attention to several issues:
1. The diameter and position of the water inlet pipe, outlet pipe and overflow pipe of the water tank shall be determined by the designer or user. There shall be no less than 700 mm of channel around the water tank. The spacing between the bottom of the tank and the top of the tank shall not be less than 800 mm. The joint between the bottom of the box and the standard block at the bottom of the box shall be located on the support.
2. Check the type of water tank support, whether the dimensions meet the requirements of drawings and contracts, and carefully adjust the horizontal position of the friend seat.
3. Assemble the chassis of the tank according to the plan and technical requirements of the tank, and locate it horizontally on the support.
4. According to the drawings and technical requirements, the bottom plate, side wall plate and top plate are assembled and checked one by one to confirm that there is no leakage.
5, according to the first welded bottom --- the upper side --- pull the top --- top --- other accessories work procedures to complete the tank as a whole. Check to ensure that the outside dimensions, inlet and outlet, overflow, drain, manhole and ladder are in accordance with the design or use requirements.
6. Water test: After the water tank is assembled, close the water outlet valve and drain valve, open the water inlet pipe and check the side of the water, fill it up until it is no more than 2-3 hours.
- Specification:
- 1. Out diameter: 406.4mm - 1422.4mm (16"-56")
- 2. Thickness: 9.5mm-38.1mm
- 3. Length: 6m-12.5m
- 4. Type: LSAW (Longitudinal Submerged-Arc Welded), DSAW (Double Submerged-arc welded) Steel Pipe
- 5. Manufacturing Process:JCO(JCOE,COE)
- 6. Standard: API SPEC 5L (ISO 3183), GB/T 9711.1, GB/T 9711.2, GB/T 9711.3 BSEN10217
- 7. Uses: for conveying gas, water and oil, in the oil or natural gas industries
- 8. Chemical Analysis (%):
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Standard Type of pipe Class Grade C max Si max Mn max P max S max V max Nb max Ti max API SPEC 5L
/ISO 3183WELD PSL1 L245 B 0.26 - 1.2 - 0.03 0.03 - - L290/X42 0.26 - 1.3 - 0.03 0.03 - - L320/X46 0.26 - 1.4 - 0.03 0.03 - - L360/X52 0.26 - 1.4 - 0.03 0.03 - - L390/X56 0.26 - 1.4 - 0.03 0.03 - - L415/X60 0.26 - 1.4 - 0.03 0.03 - - L450/X65 0.26 - 1.4 - 0.03 0.03 - - L485/X70 0.26 - 1.4 - 0.03 0.03 - - PSL2 L245M/GR.BM 0.22 0.45 1.2 0.025 0.015 0.05 0.05 0.04 L290M/X42M 0.22 0.45 1.3 0.025 0.015 0.05 0.05 0.04 L320M/X46M 0.22 0.45 1.3 0.025 0.015 0.05 0.05 0.04 L360M/X52M 0.22 0.45 1.4 0.025 0.015 - - - L390M/X56M 0.22 0.45 1.4 0.025 0.015 - - - L415M/X60M 0.12 0.45 1.6 0.025 0.015 - - - L450M/X65M 0.12 0.45 1.6 0.025 0.015 - - - L485M/X70M 0.12 0.45 1.7 0.025 0.015 - - - L555M/X80M 0.12 0.45 1.85 0.025 0.015 - - - - 9. Mechanical Properties
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Standard Class Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation(%) Y.S/T.S API SPEC 5L
/ISO 3183PSL1 L245 B min 245 415 b - L290/X42 min 290 415 b - L320/X46 min 320 435 b - L360/X52 min 360 460 b - L390/X56 min 390 490 b - L415/X60 min 415 520 b - L450/X65 min 450 535 b - L485/X70 min 480 470 b - PSL2 L245N/BN
L245M/BMmin 245 415 b - max 450 760 b 0.93 L290N/X42N
L290M/X42Mmin 290 415 b - max 495 760 b 0.93 L320N/X46N
L320M/X46Mmin 320 435 b - max 525 760 b 0.93 L360N/X52N
L360M/X52Mmin 360 460 b - max 530 760 b 0.93 L390N/X56N
L390M/X56Mmin 390 490 b - max 545 760 b 0.93 L415N/X60N
L415M/X60Mmin 415 520 b - max 565 760 b 0.93 L450M/X65M min 450 535 b - max 600 760 b 0.93 L485M/X70M min 485 570 b - max 635 760 b 0.93 L555M/X80M min 555 625 b - max 705 825 b 0.93
LSAW Steel Pipe,LSAW Steel Tube,LSAW L360 Steel Pipe ,LSAW L485 Steel Pipe
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