Open Die Forgings Manufacturer In China
FORGED SEAMLESS ROLLED RINGS /FORGED RING / GEAR RING
The application fields of ring forgings are:
Diesel engine ring forgings: a type of diesel forgings, diesel engine diesel engine is a kind of power machinery, it is commonly used as an engine. Taking large diesel engines as an example, the forgings used are cylinder head, main journal, crankshaft end flange output end shaft, connecting rod, piston rod, piston head, crosshead pin, crankshaft transmission gear, ring gear, intermediate gear and dye pump. More than ten kinds of body.
Marine ring forgings: Marine forgings are divided into three categories, main forgings, shaft forgings and rudder forgings. The main unit forgings are the same as the diesel forgings. The shaft forging has a thrust shaft, an intermediate shaft, and the like. Forgings for rudder systems include rudder stock, rudder stock, and rudder pins.
Weapon ring forgings: Forgings occupy an extremely important position in the weapon industry. By weight, 60% of the tanks are forged. Gun barrel, muzzle retractor and stern in artillery, rifled barrel and triangular bayonet in infantry weapons, deep water bomb launcher and fixed seat for rocket and submarine, stainless steel valve body for nuclear submarine high pressure cooler, shells, Guns, etc., are forged products. In addition to steel forgings, weapons are also made from other materials.
Petrochemical ring forgings: Forgings have a wide range of applications in petrochemical equipment. Such as manholes and flanges of spherical storage tanks, various tube sheets required for heat exchangers, forging cylinders (pressure vessels) for butt welding flange catalytic cracking reactors, barrel sections for hydrogenation reactors, fertilizers The top cover, bottom cover, and head required for the equipment are forgings.
Mine ring forgings: According to the weight of equipment, the proportion of forgings in mining equipment is 12-24%. Mining equipment includes: mining equipment, hoisting equipment, crushing equipment, grinding equipment, washing equipment, and sintering equipment.
Nuclear power ring forgings: Nuclear power is divided into two types: pressurized water reactors and boiling water reactors. The main large forgings of nuclear power plants can be divided into two major categories: pressure shells and internal components. The pressure shell includes: a cylinder flange, a nozzle section, a nozzle, an upper cylinder, a lower cylinder, a cylinder transition section, a bolt, and the like. The internal components of the pile are operated under severe conditions such as high temperature, high pressure, strong neutron irradiation, boric acid water corrosion, scouring and hydraulic vibration, so 18-8 austenitic stainless steel is used.
Thermal power ring forgings: There are four key forgings in thermal power generation equipment, namely the rotor and retaining ring of the steam turbine generator, and the impeller and steam turbine rotor in the steam turbine.
Hydroelectric ring forgings: Important forgings in hydropower station equipment include turbine shafts, hydro-generator shafts, mirror plates, thrust heads, etc.
Common used material: 1045 | 4130 | 4140 | 4340 | 5120 | 8620 | 42CrMo4 | 1.7225 | 34CrAlNi7 | S355J2 | 30NiCrMo12 |22NiCrMoV |EN 1.4201
FORGED RING
Large forged ring up to OD 5000mm x ID 4500x Thk 300mm section. Forging ring tolerance typically -0/+3mm up to +10mm dependent on size.
All Metals has the forging capabilities to produce forged ring from the following alloy types:
●Alloy steel
●Carbon steel
●Stainless steel
FORGED RING CAPABILITIES
Material
MAX DIAMETER
MAX WEIGHT
Carbon, Alloy Steel
5000mm
15000 kgs
Stainless Steel
5000mm
10000 kgs
Shanxi DongHuang Wind Power Flange Manufacturing Co., LTD. , as an ISO registered certified forging manufacturer, guarantee that the forgings and/or bars are homogenous in quality and free of anomalies which are detrimental to the mechanical properties or machining properies of the material.
Case:
Steel Grade 1.4201
Chemical composition % of steel 1.4201
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
|
Min. 0.15
|
–
|
–
|
-
|
-
|
12.0
|
|
Max. -
|
1
|
1
|
0.040
|
0.03
|
14.0
|
| Grade |
UNS No |
Old British BS |
Euronorm En |
Swedish No Name |
Japanese SS JIS |
Chinese GB/T 1220 |
| 420 |
S42000 |
420S37 |
56C 1.4021 X20Cr13 |
2303 |
SUS 420J1 |
2Cr13 |
The steel grade 1.4021(also called ASTM 420 and SS2303) is a high tensile strength martensitic stainless steel with good corrosion properties. The steel is machinable and suits good for production of details with good resistance to e.g. air water steam, freshwater, certain alkaline solutions and other mildly aggressive chemicals. It shall not be used in marine or in chloride environment. The steel is magnetic and in the quenched and tempered condition.
Applications
Some typical application areas for EN 1.4021
Pump- and Valve parts, Shafting, Spindels, Piston rods, Fittings, Stirrers, Bolts, Nuts EN 1.4021 Forged ring, Stainless Steel forgings for Slewing ring.
Size: φ840 xφ690x H405mm
Forging (Hot Work ) Practice , Heat Treatment Procedure
| Annealing |
800-900℃ |
| Tempering |
600-750℃ |
| Quenching |
920-980℃ |
| Rm - Tensile strength (MPa)
(A) |
727 |
| Rp0.2 0.2% proof strength (MPa)
(A) |
526 |
| A - Min. elongation at fracture (%)
(A) |
26 |
| Z - Reduction in cross section on fracture (%)
(A) |
26 |
| Brinell hardness (HBW):
(+A) |
200 |
ADDITIONAL INFORMATION
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