Standard: GB/T6728, BS EN10219, BS EN10296, ASTM A500; JIS G3446
Material: Q195- Q345; S235JR
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Size:steel square tube: 10x10-400x400mm;
     rectangular tube:20x10-300x400mm
Length: 5.8-11.8m export length
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| Square tube sizes | |||
| SIZE(MM) | THICKNESS(MM) | SIZE(MM) | THICKNESS(MM) |
| 10*10 | 0.5-1.5 | 60*60 | 0.5-3.0 |
| 12*12 | 0.5-1.5 | 70*70 | 0.5-3.0 |
| 14*14 | 0.5-1.5 | 80*80 | 0.5-3.0 |
| 16*16 | 0.5-1.5 | 90*90 | 2.0-12.75 |
| 18*18 | 0.5-1.5 | 100*100 | 2.0-12.75 |
| 19*19 | 0.5-1.5 | 120*120 | 2.0-12.75 |
| 20*20 | 0.5-1.5 | 150*150 | 2.0-12.75 |
| 22.2*22.2 | 0.5-1.5 | 160*160 | 2.0-12.75 |
| 25*25 | 0.5-1.5 | 180*180 | 2.0-12.75 |
| 25.4*25.4 | 0.5-1.5 | 200*180 | 2.0-12.75 |
| 30*30 | 0.5-3.0 | 220*220 | 2.0-12.75 |
| 32*32 | 0.5-3.0 | 250*250 | 4.0-12.75 |
| 38*38 | 0.5-3.0 | 300*300 | 4.0-12.75 |
| 40*40 | 0.5-3.0 | 350*350 | 6.0-12.75 |
| 45*45 | 0.5-3.0 | 400*400 | 6.0-12.75 |
| 50*50 | 0.5-3.0 | Â | Â |
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FAQ:
| Are you a trading company or manufacturer? | Manufacturer with factory |
| What kinds of flat bar you produce? | It covers for flat bar ,channel steel ,angle bar , H beam ,Steel plate,Pipe |
| Do you Accept OEM service? | YES! |
| what's your delivery terms? | FOB (2)CFR (3)CIF |
| What's your Delivery Time? | 1)generally the samples will be sent immediately by the air express in     3-5  days if the goods are in stock |
|  |  2)Normally within 30 days,please confirm with us before order! |
| What's the Payment Terms? | Usually,30% as deposit,70% before shipment by T/T |
|  | Western Union acceptable for small amount. |
|  |  L/C acceptable for large amount. |
|  | Scrow ,Paybal,Alipay are also ok |
| How you pack products? | at mill's standard packing in bundles / as per customer's packing instruction export seaworthy. |
| What's your available port of Shipment? | Normally, Tianjin Other ports available but you should afford extra charges. |
| Trade and Market | Southeast Asia 15% Africa 10% Middl    East   10%  Domestic Market  55% |
Silicon nitride ceramic is an inorganic material ceramic that does not shrink when sintered. Silicon nitride is very strong, especially hot pressed silicon nitride, which is one of the hardest substances in the world. It has high strength, low density and high temperature resistance.
Si3N4 ceramic is a covalent bond compound. The basic structural unit is a [SiN4] tetrahedron. The silicon atom is located at the center of the tetrahedron. There are four nitrogen atoms around it, which are located at the four vertices of the tetrahedron, and then every three A tetrahedron shares the form of an atom, forming a continuous and robust network structure in three dimensions.
Silicon Nitride Ceramics,Nitride Precision Ceramic,Silicon Nitride Ceramic Ring,Silicon Nitride Ceramic Parts
Dongguan Haikun New Material Co., Ltd. , https://www.nitrideceramic.com