Forged Shell Heavy Steel Forgings Special Sizes Manufacturing &
Mining Cylinder Forgings
1. Forged Shell , cylinder proper forgings, Shell body forging parts, Solid forgings
2. Non-standard and common or uncommon sizes diameter flange
Large size Shell forging section size in the production process is
very complex, so the production of the product needs to consider a
lot of factors, the main consideration is the following.
1. The microstructure and properties of forgings are not uniform;
2) coarse grain size of forging;
3) there is a large stress in the forging;
4) some forgings prone to white spot flaw.
Therefore large cylinder forging heat treatment in addition to
eliminate stress, reduce the hardness, the main purpose is, first
of all, prevention of forging white spots appear, followed by
improving the uniformity of the chemical composition and fine tune
In the production of large cylinder forgings, consistent with the
current view is that: the white point is the results of hydrogen
and the internal stress of steel. The most commonly used method is
to prevent the white spots in just cooled to 650 to 540 degrees
when using hydrogen diffusion speed for thermal insulation.
Alloy steel (42CrMo4, 35CrMo, 40CrNiMo etc.), carbon steel or
ASTM, En or ISO
Max. thickness: 2000mm
Max. height: 3000mm
Max. 50 ton
EF+LF + VD
Ingot→heat → forging → Heat treatment (Normalizing+ tempering) →
→UT →2nd Heat treatment →finishing machining →Inspection
ASTM A388 or EN10228
Quality control and management to the whole produce process,
including ingot smelting, forging, heat treatment, machining and
strictly final inspection prior to delivery.
Excellent product quality and service, competitive price, “in-time”
1. Short production time, “in-time” delivery;
2. We can provide the steel forgings whatever size, material or
type as per your requirements;
3. We can provide the largest diameter flange in the world.