Name:42crmo4 scm440 aisi4140 steel ring forging/4140 forging steel ring
SIZE: Ring forging/forged ring/annular forging/gear forging/steel sleeve/steel cylinder
| Diameter(mm) |
Height(mm) |
Single weight(kg) |
Material |
| 800~3500 |
100~500 |
4200 or less |
Carbon structure steel/alloy structure steel/low alloy steel/alloy steel/spring steel/stainless steel/heat resistant steel/high temperature alloy steel |
Standard: ANSI, JIS, BS, DIN, UNI, EN, GB, AWWA, API
Certification: ISO19001-2008, ISO14001:2004,GB/T28001-2001(OHS18001:1999)
Seamless Rolled Ring Forging Process
I. Upsetting
The ring rolling process begins with the upsetting of the starting stock on flat dies at its plastic deformation temperature.
II. Piercing
Piercing involves forcing a punch into the hot upset stock displacing metal radially and leaving a thin web of metal at the bottom.
III. Shearing
A subsequent operation, shearing, removes the thin web producing a completed hole through the stock.
IV. Preforming
This stock, referred to as a blank or preform, is now ready for the ring rolling process.
V.Forming
The doughnut-shaped preform is placed over the mandrel.
As the preform is rotated in the mill, the mandrel begins to apply pressure toward the main roll. At the same time, the axial cones apply pressure toward each other.
As a result of the radial and axial pressure, the ring's OD and ID gradually increase while the thickness and wall section are reduced.
Axial forging/ forged shaft:
| Diameter(mm) |
Height(mm) |
Single weight(kg) |
Material
|
| 180~1000 |
500~8500 |
12000 or less |
Carbon structure steel/alloy structure steel/low alloy steel |
| 180~650 |
500~6000 |
10000 or less |
alloy steel/spring steel/stainless steel/heat resistant steel |
| 150~400 |
400~3000 |
10000 or less |
high temperature alloy steel |
Ring forging/forged ring/annular forging/gear forging/steel sleeve/steel cylinder:
| Diameter(mm) |
Height(mm) |
Single weight(kg) |
Material
|
| 800~3500 |
100~500 |
4200 or less |
Carbon structure steel/alloy structure steel/low alloy steel/alloy steel/spring steel/stainless steel/heat resistant steel/high temperature alloy steel |
Module forging/forging block:
| Thick(mm) |
Width(mm) |
Single weight(kg) |
Material
|
| 100~600 |
100~1600 |
18000 or less |
Carbon structure steel/alloy structure steel/low alloy steel/alloy steel/spring steel/stainless steel/heat resistant steel/high temperature alloy steel |
Forging bars:
| Diameter(mm) |
Height(mm) |
Single weight(kg) |
Material
|
| 80~650 |
16000 |
12000 or less |
Carbon structure steel/alloy structure steel/low alloy steel |
| 80~650 |
16000 |
10000 or less |
alloy steel/spring steel/stainless steel/heat resistant steel/high temperature alloy steel |
Forging discs:
| Diameter(mm) |
Height(mm) |
Single weight(kg) |
Material
|
| 150~1000 |
100~500 |
4200 or less |
Carbon structure steel/alloy structure steel/low alloy steel/alloy steel/spring steel/stainless steel/heat resistant steel/high temperature alloy steel |
How to pack
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