Audited Supplier
Product Description:
Square tubes are classified according to their uses: square tubes for decoration, square tubes for machine tools, square tubes for mechanical industry, square tubes for chemical industry, square tubes for steel structures, square tubes for shipbuilding, square tubes for automobiles, square tubes for steel beams and columns, square tubes for special purposes.
Specification:Standard:
ASTM A500 Grade B,
ASTM A513 (1020-1026)
ASTM A36 (A36)
EN 10210:S235,S355,S235JRH,
S355J2H,S355NH
EN 10219:S235,S355,S235JRH,
S275J0H, S275J2H, S355J0H, S355J2H
Surface conditions:
Hot rolled
Cold rolled
A:Stainless steel square pipe:(It can be customized according to customer requirements)
| Size byInch (diameter) | Thickness | Sizes byMM (diameter) | Thickness |
inch | inch | mm | mm |
1/2" x 1/2" | 0.065" | 16mm×16mm | 0.4mm~1.5mm |
| 3/4" x 3/4" | 0.049" | 18mm×18mm | 0.4mm~1.5mm |
0.065" | 20mm×20mm | 0.4mm~3mm | |
0.083" | 22mm×22mm | 0.4mm~3mm | |
0.120" | 25mm×25mm | 0.6mm~3mm | |
1" x 1" | 0.049" | 30mm×30mm | 0.6mm~4mm |
0.058" | 32mm×32mm | 0.6mm~4mm | |
0.065" | 34mm×34mm | 1mm~2mm | |
0.072" | 35mm×35mm | 1mm~4mm | |
0.083" | 38mm×38mm | 1mm~4mm | |
0.095" | 40mm×40mm | 1mm~4.5mm | |
0.109" | 44mm×44mm | 1mm~4.5mm | |
0.120" | 45mm×45mm | 1mm~5mm | |
1 1/8" x 1 1/8" | 0.035" | 50mm×50mm | 1mm~5mm |
0.049" | 52mm×52mm | 1mm~5mm | |
0.065" | 60mm×60mm | 1mm~5mm | |
0.109" | 70mm×70mm | 2mm~6mm | |
0.120" | 75mm×75mm | 2mm~6mm | |
| 1 1/4" x 1 1/4" | 0.049" | 76mm×76mm | 2mm~6mm |
0.065" | 80mm×80mm | 2mm~8mm | |
0.072" | 85mm×85mm | 2mm~8mm | |
0.083" | 90mm×90mm | 2mm~8mm | |
0.109" | 95mm×95mm | 2mm~8mm | |
0.120" | 100mm×100mm | 2mm~8mm | |
0.135" | 120mm×120mm | 4mm~8mm | |
0.156" | 125mm×125mm | 4mm~8mm | |
0.188" | 130mm×130mm | 4mm~8mm | |
| 1 1/2" x 1 1/2" | 0.049" | 140mm×140mm | 6mm~10mm |
0.065" | 150mm×150mm | 6mm~10mm | |
0.072" | 160mm×160mm | 6mm~10mm | |
0.083" | 180mm×180mm | 6mm~12mm | |
0.109" | 200mm×200mm | 6mm~30mm | |
0.120" | 220mm×220mm | 6mm~30mm | |
0.140" | 250mm×250mm | 6mm~30mm | |
| 0.188" | 270mm×270mm | 6mm~30mm | |
| 0.250" | 280mm×280mm | 6mm~30mm | |
| 1 3/4" x 1 3/4" | 0.065" | 300mm×300mm | 8mm~30mm |
| 0.083" | 320mm×320mm | 8mm~30mm | |
| 0.095" | 350mm×350mm | 8mm~30mm | |
| 0.109" | 380mm×380mm | 8mm~30mm | |
| 0.120" | 400mm×400mm | 8mm~30mm | |
| 0.188" | 420mm×420mm | 10mm~30mm | |
| 2" x 2" | 0.049" | 450mm×450mm | 10mm~30mm |
| 0.065" | 480mm×480mm | 10mm~30mm | |
| 0.083" | 500mm×500mm | 10mm~30mm | |
| 0.109" | 550mm×550mm | 10mm~40mm | |
| 0.120" | 600mm×600mm | 10mm~40mm | |
| 0.145" | 700mm×700mm | 10mm~40mm | |
| 0.165" | 800mm×800mm | 10mm~50mm | |
| 0.188" | 900mm×900mm | 10mm~50mm | |
| 0.250" | 1000mm×1000mm | 10mm~50mm | |
| 0.312" | |||
| 2 1/4" x 2 1/4" | 0.188" | ||
| 0.250" | |||
| 2 1/2" x 2 1/2" | 0.083" | ||
| 0.109" | |||
| 0.120" | |||
| 0.188" | |||
| 0.250" | |||
| 0.312" |
| 3" x 3" | 0.083" |
0.120" | |
0.188" | |
0.250" | |
0.312" | |
| 0.375" | |
| 3 1/2" x 3 1/2" | 0.120" |
0.188" | |
0.250" | |
0.312" | |
0.375" | |
| 4" x 4" | 0.083" |
| 0.120" | |
| 0.156" | |
| 0.188" | |
0.250" | |
0.312" | |
0.375" | |
0.500" |
| 4 1/2" x 4 1/2" | 0.188" |
0.250" | |
0.312" | |
0.375" | |
| 5" x 5" | 0.188" |
0.250" | |
0.312" | |
0.375" | |
0.500" | |
6" x 6" | 0.188" |
0.250" | |
0.312" | |
0.375" | |
0.500" | |
0.625" | |
7" x 7" | 0.188" |
0.250" | |
0.312" | |
0.375" | |
0.500" | |
0.625" |
8" x 8" | 0.188" |
0.250" | |
0.312" | |
0.375" | |
0.500" | |
0.625" | |
9" x 9" | 0.188" |
| 0.250" | |
0.312" | |
0.375" | |
0.500" | |
0.625" | |
10" x 10" | 0.188" |
0.250" | |
0.312" | |
0.375" | |
0.500" | |
0.625" | |
| 12" x 12" | 0.250" |
0.312" | |
0.375" | |
0.500" | |
0.625" | |
14" x 14" | 0.312" |
0.375" | |
0.500" | |
0.625" | |
16" x 16" | 0.312" |
0.375" | |
0.500" | |
0.625" |
Chemical composition of material
| Grade | element | C | Mn | P | S |
| ASTM A500 Gr.b | % | 0.05%-0.23% | 0.3%-0.6% | 0.04% | 0.04% |
| Acc.to EN10027/1 | Acc.to EN10027/2 | C% max (Norminal W.T.(mm) | Si% max | Mn% max | P% max | S% max | N% max | |
| and IC 10 | ≤ 40 | |||||||
| S235JRH | 1.0039 | 0.17 | 0.20 | - | 1.40 | 0.045 | 0.045 | 0.009 |
| S275JOH | 1.0149 | 0.20 | 0.22 | - | 1.50 | 0.040 | 0.040 | 0.009 |
| S275J2H | 1.0138 | 0.20 | 0.22 | - | 1.50 | 0.035 | 0.035 | - |
| S355JOH | 1.0547 | 0.22 | 0.22 | 0.55 | 1.60 | 0.040 | 0.040 | 0.009 |
| S355J2H | 1.0576 | 0.22 | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 | - |
Mechanical properties of material
| Grade | Yield Strength | Tensile Strength | Elongation |
| A500.Gr.b | 46 ksi | 58 ksi | 23% |
| A513.GR.B | 72 ksi | 87 ksi | 10% |
| Norm | Yield Strength | Tensile Strength | Min.elogation | Min.percent properties | ||||||||
Acc.to EN10027/1 and IC 10
| Acc.to EN10027/2 | Norminal W.T.mm | Norminal W.T.mm | Longit. | Cross | Test temperature°C | Average min.impact value | |||||
| ≤16 | >6 | >40 | <3 | ≤3≤65 | Norminal W.T.mm | |||||||
| ≤65 | ≤65 | ≤40 | >40 | >40 | ≤65 | |||||||
| ≤65 | ≤40 | |||||||||||
| S253JRH | 1.0039 | 235 | 225 | 215 | 360-510 | 340-470 | 26 | 25 | 24 | 23 | 20 | 27 |
| S275JOH | 1.0149 | 275 | 265 | 255 | 410-580 | 410-560 | 22 | 21 | 20 | 19 | 0 | 27 |
| S275J2H | 1.0138 | 275 | 265 | 255 | 430-560 | 410-560 | 22 | 21 | 20 | 19 | -20 | 27 |
| S355JOH | 1.0547 | 355 | 345 | 335 | 510-680 | 490-630 | 22 | 21 | 20 | 19 | 0 | 27 |
| S355J2H | 1.0576 | 355 | 345 | 335 | 510-680 | 490-630 | 22 | 21 | 20 | 19 | -20 | 27 |
Equivalent specfications
EN 10210-1 |
NF A 49501 NF A 35501 |
DIN 17100 DIN 17123/4/5 |
BS 4360 |
UNI 7806 |
| S235JRH | E 24-2 | St 37.2 | - | Fe 360 B |
| S275JOH | E 28-3 | St 44.3 U | 43 C | Fe 430 C |
| S275J2H | E 28-4 | St 44.3 N | 43 D | Fe 430 D |
| S355JOH | E 36-3 | St 52.3 U | 50 C | Fe 510 C |
| S355J2H | E 36-4 | St 52.3 N | 50 D | Fe 510 D |
| S275NH | - | St E 285 N | - | - |
| S275NLH | - | TSt E 285 N | 43 EE | - |
| S355NH | E 355 R | St E 355 N | - | - |
| S355NLH | - | TSt E 355 N | 50 EE | - |
| S460NH | E 460 R | St E 460 N | - | - |
| S460NLH | - | TSt E 460 N | 55 EE | - |
- block letter "S" means "STEEL FOR STRUCTURAL APPLICATIONS"
- the next fi gure means the minim. yield value required for wall thickness ≤16 mm
- "J2" means impact test value -20° C min. 27 joule
- block letter "H" means "HOLLOW SECTION".
B:Ms rectangle steel pipe:
Standard:
ASTM A500 Grade B,
ASTM A513 (1020-1026)
ASTM A36 (A36)
EN 10210:S235,S355,S235JRH,
S355J2H,S355NH
EN 10219:S235,S355,S235JRH,
S275J0H, S275J2H, S355J0H, S355J2H
Surface conditions:
Hot rolled
Cold rolled
| Size by Inch (diameter) | Thickness | Sizes by MM (diameter) | Thickness |
inch | inch | mm | mm |
1" x1/2" | 0.065" | 10mm×15mm | 0.6mm~1.5mm |
| 1" x 3/4" | 0.065" | 10mm×20mm | 0.6mm~1.5mm |
| 0.095" | 14mm×21mm | 0.6mm~1.5mm | |
| 1 1/4" x 3/4" | 0.065" | 15mm×30mm | 0.6mm~1.5mm |
| 1 1/2" x 3/4" | 0.065" | 15mm×38mm | 0.6mm~1.5mm |
| 0.120" | 20mm×20mm | 0.6mm~2mm | |
1 1/2" x 1" | 0.065" | 20mm×30mm | 0.6mm~2mm |
0.072" | 20mm×40mm | 0.6mm~2mm | |
0.083" | 20mm×50mm | 0.6mm~2mm | |
0.120" | 22mm×35mm | 0.6mm~2mm | |
2" x 1" | 0.065" | 25mm×40mm | 0.9mm~2mm |
0.083" | 25mm×65mm | 0.9mm~3.75mm | |
0.120" | 30mm×20mm | 1mm~2mm | |
0.188" | 30mm×40mm | 1mm~3.75mm | |
2" x 1 1/4" | 0.065" | 30mm×45mm | 1mm~3.75mm |
0.083" | 30mm×50mm | 1mm~3.75mm | |
2" x 1 1/2" | 0.083" | 30mm×60mm | 1mm~4mm |
0.120" | 40mm×25mm | 1mm~4.5mm | |
| 2 1/2" x 1 1/2" | 0.072" | 40mm×50mm | 1mm~4.5mm |
0.083" | 40mm×60mm | 1mm~4.5mm | |
0.120" | 40mm×80mm | 1mm~5mm | |
0.148" | 40mm×100mm | 1mm~5mm | |
0.188" | 50mm×25mm | 2mm~5mm | |
0.250" | 50mm×30mm | 2mm~5mm | |
| 3" x 1" | 0.083" | 50mm×60mm | 2mm~5mm |
0.120" | 50mm×80mm | 2mm~5mm | |
0.188" | 50mm×100mm | 2mm~5mm | |
| 3" x 1 1/2" | 0.083" | 60mm×30mm | 2mm~6mm |
0.120" | 60mm×40mm | 2mm~6mm | |
0.188" | 60mm×80mm | 2mm~6mm | |
| 0.250" | 70mm×50mm | 2mm~6mm | |
3" x 2" | 0.065 | 80mm×30mm | 2mm~8mm |
0.083 | 80mm×40mm | 2mm~8mm | |
0.125 | 80mm×60mm | 2mm~8mm | |
0.188 | 80mm×100mm | 2mm~8mm | |
0.250 | 100mm×50mm | 2mm~8mm | |
3" x 2" | 0.083" | 120mm×60mm | 2.5mm~10mm |
0.120" | 120mm×80mm | 2.5mm~10mm | |
0.188" | 140mm×60mm | 2.5mm~10mm | |
0.250" | 140mm×80mm | 2.5mm~10mm | |
| 0.312" | 150mm×100mm | 2.5mm~12mm |
4" x 1 1/2" | 0.120" | 160mm×80mm | 2.5mm~12mm |
0.188" | 180mm×150mm | 2.5mm~12mm | |
| 4" x 2" | 0.083" | 200mm×100mm | 4mm~12mm |
0.120" | 200mm×150mm | 4mm~12mm | |
0.188" | 220mm×140mm | 4mm~12mm | |
0.250" | 250mm×150mm | 6mm~12mm | |
0.312" | 250mm×100mm | 6mm~12mm | |
0.375" | 250mm×200mm | 6mm~30mm | |
4" x 2 1/2" | 0.188" | 300mm×100mm | 6mm~30mm |
0.250" | 300mm×150mm | 6mm~30mm | |
| 4" x 3" | 0.083" | 300mm×200mm | 6mm~30mm |
0.120" | 300mm×250mm | 6mm~30mm | |
0.188" | 400mm×250mm | 8mm~30mm | |
0.250" | 400mm×300mm | 8mm~30mm | |
0.312" | 450mm×200mm | 8mm~30mm | |
0.375" | 450mm×250mm | 8mm~30mm | |
| 4 1/2" x 2 1/2" | 0.188" | 400mm×300mm | 8mm~30mm |
0.250" | 400mm×350mm | 8mm~30mm | |
| 5" x 2" | 0.120" | 500mm×200mm | 10mm~30mm |
0.188" | 500mm×250mm | 10mm~30mm | |
0.250" | 500mm×300mm | 10mm~30mm | |
0.312" | 500mm×350mm | 10mm~30mm | |
0.375" | 500mm×400mm | 10mm~30mm | |
| 5" x 2 1/2" | 0.120" | 500mm×450mm | 10mm~30mm |
0.188" | 600mm×200mm | 10mm~28mm | |
0.250" | 600mm×400mm | 10mm~28mm | |
| 5" x 3" | 0.188" | 600mm×500mm | 10mm~28mm |
0.250" | 800mm×400mm | 10mm~28mm | |
0.312" | 800mm×600mm | 10mm~28mm | |
0.375" | 800mm×700mm | 10mm~28mm | |
0.500" | 1000mm×400mm | 10mm~28mm | |
5" x 4" | 0.188" | 1000mm×500mm | 10mm~28mm |
0.250" | 1000mm×600mm | 10mm~28mm | |
0.312" | 1000mm×800mm | 10mm~28mm |
Out diameter:12.70-150mm
Width: 1.0-3.5mm
Grade:304, 304L,304H, 316, 361L,316H, 309/S, 310/S, 317/L, 321/H, 347/H, 410, 410S, Duplex 2205, Duplex 2507
Specifications: ASTM A312, ASTM A358, ASTM A240, ASTM A778
D:Stainless steel rectangle pipe:
Out diameter:24.0*14.0mm-100*50.8mm
Width: 1.0-5.0mm
Grade:304, 304L,304H, 316, 361L,316H, 309/S, 310/S, 317/L, 321/H, 347/H, 410, 410S, Duplex 2205, Duplex 2507
Specifications: ASTM A312, ASTM A358, ASTM A240, ASTM A778
Latest project order:
About us:
1.Pipe:
Permanent Steel Manufacturing Co.,Ltd has been committed to being a major supplier of quality kinds of carbon steel pipe, stainless steel tube, hollow section numerous types of piping equipments including Bend, Cap, Coupling, Elbow, Reducer, Stub End, Tee, Olet, Joint, Gasket, etc.
The Products from Permanent Steel Manufacturing Co.,Ltd are supplied in accordance with appropriate International Standards as well as Customer Specifications in a large variety of steel grades and dimensions. Permanent Steel Manufacturing Co.,Ltd on a 250,000 m2 area and has three production units: Foundry, Rolling and Extrusion mills. Permanent Steel Manufacturing Co.,Ltd operates under strict quality, environmental, as well as health and safety management systems, in compliance with ISO 9001, ISO 14001 and OHSAS 18001 standards. We have six spiral pipe production lines have introduced into the international advanced technique design andmanufacturing,each of them is outfitted with the whole set equipment from uncoiling to pipeindpection,packing and then Ex-work,includingun coiler, leve ling ma chine , fly welding machine ,plasma cutting machine,pipe endgrinding machine.hydrostatic testing machine,beveling machine,end expander, ultrasonic inspector for pipe body and weld seam,highlyclear X-ray image inspection system and so on.
Our hollow section factory:
2.Coating:
We have two advanced three-layer PE anticorrosive pipe production lines, which can carry out three-layer PE and FBE anticorrosion for steel pipe with diameter of 20mm to 1820mm, as
well as epoxy asphalt anticorrosion production line, steel-plastic composite pipe production line, internal and external plastic coating and plasticlining production line, and cement mortar production line for inner wall of steel pipe. The annual anticorrosion production capacity reaches 18 million square meters. Since its establishment, the company has formed a good cooperative relationship with many domestic and foreign steel pipe manufacturers, gas companies and oil companies, and its sales network covers many countries.
Our Certificate:
End Users:
Our team:
Our advantage:
1. Full projects reference all of the world and vendor references from the most main oil and Gas in stitute, companies, investors
2. The inspection program is full supported to the docs requirements
3. The list of producing equipment and inspection equipment will be provided
4. The relative shipping docs, third party inspection report, Mill test certification, custom appreciate letters
5. The mill certification such as API monogram , ISO ect....
7. ITP, MPS & ISO manual
8. Prices competitively level
9. Full presentation experiences and guidance
10. Engineering design & construction capacities
11. Financial supports, various of payment term could be acceptable such as L/C, T/T.
12. Free custom inspection corporation & checked corporation in CCPIT
13. Full bank supported company with a perfect line of Credit "AAAAA"
ect
FAQ
Q: How long is your delivery time?
A: Depends on pipes size and quantity. 7-10 days for stocked steel pipe and 20-40 days for new productions according to quantity.bowl shape stainless steel smoking pipe screens
Q: Do you provide samples? Is it free or extra? 201 Stainless Steel Pipe used for Food and Chemical Industry
A: Yes,we could offer free steel pipe sample for your evaluation. stainless steel pipe fitting
Q: What is your terms of payment? steel pipe
A: TT payment way, TT+LC, or 100% sight LC and usance L/C for 30-120days,the specific payment should be addressed by further discussion.
