JIS G4801 SUP7 Sping Steel Flat Bar For Trucks And Railway Vehicles, Coiled And Threaded Springs
USD $600 - $1,000 /Ton
Min.Order:2 Tons
FORGING:Hot forming temperature: 1050-850oC.
SOFT ANNEALING: Heat to 640-680oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 255.
HARDENING: Harden from a temperature of 830-860oC followed by oil quenching.
TEMPERING:Tempering temperature: 350-550oC, air.
Yea, we are manufacturer. We have our own manufacturer.
Here is our web site:/
We usually quote within 24 hours after we get your inquiry by telling us the material, out diameter, wall thickness length, quantity and application of the steel pipe which you need. If you are very urgent to get the price, please inform us in email so that we will regard your inquiry priority.
After price confirmation, you can require for samples to check our quality.
we will provide you the sample for free, however we could only make sure the same material, the
dimension will be much similar as your request but not same. And customer should afford the charge of shipment.
The samples will be sent to you via express and arrive in 3-5 days.
You can use your own consignee account or prepay us if you do not have an account.
Honestly, it depends on the order quantity and the season you place the order.
It is the payment for customer whose order qty is less then Min Order Qty. Because small qty of products should be processed same in the production flow as big qty and the average cost would get much higher than big ones. So there is a small Qty Process Charge to ensure the profit of our factory and usually the amount of it is about $250.00
Yes. We are the professional manufacturer which has rich experience in Precision Seamless Steel Pipe manufacturing.
We could print the logo and label under your requirements if you need OEM products. Beside this, we still do some refined processes like CNC cutting, chamfering, galvanization and tapping, if you have detailed spec or drawing.Our production lead time is within 30-45 days.
We accept EXW, FOB, CIF, DDU etc. You can choose the one which is the most convenient or cost effective for you.