dished head

Forged fold head Processing scope Diameter 350-7000 Thickness 6-100mm ISO9001-2008

Forged fold head:

1.We own Asian unique production line which can make diameter of 12m heads and can supply OEM service .Besides we  manufacture A3 head with high quality and competitive prices.2.Standard:ISO9001:2008;GB/T25198-20103.Testing : non-destructive(UT,RT,MT,PT)                 carbon sulphur analysis instrument                  non-contact type temperature measuring apparatus                   WE-60type omnipotent testing machine                   examine the thickness appearance4.Forming method:cold and hot pressing,cold and hot spinning,punching5.License:Manufacture License of Special Equipment People's Republic of China(A3 Head)6.Application:Our different material and specification heads can be used in many fileds,such as petroleum,chemical industry,boiler,pressure vessels,railway transportation,metal structure,water supply facilities and aerospace engineering,etc.7.Material:mild steel,low alloy steel,carbon steel,stainless steel,clad plate,etc

8.Head's gradient as follows(unit:mm):

DN	Straigh edge	Gradient	Tolerance of toal depth(height)
DN≤2000	h=25	outer:1.5  inner:1.0	(-0.2~+0.6)%DN
DN≥2000	h=40	outer:2.5  inner:1.5	(-0.2~+0.6)%DN
others		outer:6%h&≤5  inner:4%h&≤3	(-0.2~+0.6)%DN

9.Tolerance of groove angle and groove dimension ,groove surface roughness as follows:

Items	Tolerance
groove angle	±2.5°
groove dimension	±1mm
groove surface roughness	no cracks,delamination,inclusions and other defects

dished head