ASTM 240 Square Welded Tube 304 Grade SS Polished Finish 6.5mm To 120mm
Foshan Nanhai Pinsanon Metal Products Co., Ltd. was established in 2009.
We own one factory for stainless steel pipes with 20,000 m2, and now have 175 employees.
There are over 60 production lines. The monthly production capacity reaches 5000 tons.
All kinds of stainless steel pipes availble:
1) Round
2) Square/ Rectangular
3) Slotted
4) Oval
5) Custom
We are stainless steel pipes manufacturer. Your stainless professor in China!
Here's size list of 304 grade welded stainless steel square pipe:
>>
>> Thickness
Unit: mm
| 0.2 | 0.25 | 0.31 | 0.35 | 0.4 | 0.5 | 0.6 | 0.7 |
| 0.8 | 0.9 | 1.1 | 1.4 | 1.9 | 2 | 2.5 | 3 |
Except above thickness, if your quantity is big enough like 5 tons, any thickness of stainless steel round pipe can be made.
Tolerance: ±0.05mm
>> Length
Unit: mm
| 6000 | 3660 (12ft) | 3000 | 2000 | 1000 | 6100 | below 1000 | 2mm smallest |
Usually 1pc=6m
>> 304 Grade Chemical Composition
| No. | Coil No. | QTY | Heat No. | Chemical Composition(%) American standard ASTM-A240 |
| C | Si | Mn | P | S | Cr | Ni |
| 1 | 190220N10 | 1 | 190220N10 | 0.055 | 0.329 | 0.877 | 0.036 | 0.0022 | 18.12 | 8.01 |
| 2 | 190220N11 | 1 | 190220N11 | 0.053 | 0.335 | 0.847 | 0.037 | 0.0043 | 18.12 | 8 |
| 3 | 190220N12 | 1 | 190220N12 | 0.06 | 0.362 | 0.847 | 0.04 | 0.0026 | 18.11 | 8.02 |
| 4 | 190220P07 | 1 | 190220P07 | 0.047 | 0.337 | 0.88 | 0.0451 | 0.0017 | 18.03 | 8 |
| 5 | 190220P08 | 1 | 190220P08 | 0.054 | 0.498 | 0.882 | 0.036 | 0.0025 | 18.05 | 8.04 |
| 6 | 190220P09 | 1 | 190220P09 | 0.042 | 0.343 | 0.856 | 0.042 | 0.0028 | 18.34 | 8.05 |
| No. | Tensile Test
American standard ASTM-A240 | Hardness |
| 1 | Rm(N/mm2) | Rp0.2(N/mm2) | Elongation
A(%) | HRB |
| 2 | 623 | 309 | 56 | 85 |
| 3 | 640 | 325 | 58 | 86 |
| 4 | 618 | 313 | 56.5 | 83 |
| 5 | 611 | 300 | 54 | 87 |
| 6 | 631 | 321 | 57 | 86 |
| 7 | 627 | 303 | 56 | 84 |
>> Finish
Our square stainless steel tube can be processed into other finishes:
1. Polished finish: gloss #400-#600, mirror #600- #800
2. Powder coated finish: different wood grain, marbling, and pure color available
3. Electroplating finish: gold, rose gold, champagne,Titanium Black or custom colors
Satin Brushed Polished
Marbling Wood Grain Color Electroplating
>>Multifunctions of stainless steel square pipe :
>>Packaging of stainless steel tube
1. Usual packing for full container quantity:
1pc/plastic bag, 50-60kgs/bundle. Each bundle is wrapped by woven fabric.
2. For LCL quantity:
For better protection, we suggest packing round stainless steel tubes in wooden case with steel rack.
>>Customized Packing
1. Stamp on pipes:
Our factory has different stamps in Chinese/ English for 201 and 304 grade of stainless steel tube.
Customized stamp on surface of round stainless steel tube is also available.
2. Custom LOGO on plastic bags:
Please send us your logo design. We charge little for this service, but it will be refunded back to you if your accumulative quantity is big enough.
3. Sticker on pipe surface:
If color of sticker is black or white, it costs nothing. Color stickers are also available.
>>Shipping
1. One 20ft container loads within 19 tons of stainless steel tube.
2. One 40GP/HQ loads within 27 tons of stainless steel tube.
Lead time is 15-30 days.
FAQ:
Q: How do you control the quality?
We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.
Q: Can you accept customization?
Yes. If you have the special requirements on products or packages, we can do customization for you.
Q: Can you accept trail orders?
Gemerally our MOQ is 1 ton. But if you want to place a trail order as the beginning of our cooperation, we can accept smaller quantity at frist. Surely we will have further and longer partnership after the beginning.
Q: Can you provide samples for checking before order?
A: Free samples can be provided as you required. You need only to bear the freight cost.
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