Description
Jiangsu Liangyi is professional manufacturer of 1.2162, 21MnCr5 open die forging parts and seamless rolled steel forged rings from china
Following is the shape of 1.2162, 21MnCr5 forging steel material that we could do is:21MnCr5 Forged Steel round bars square bars Flat bars Rectangles Bars Rods,21MnCr5 Forged forging steel rings seamless rolled rings,1.2162 Forged Forging Steel Hubs housing shell Sleeves Bushes Bushing Cases Hollow Bars,1.2162 Forged Forging Steel Discs Disks Blocks plates,21MnCr5 Forged Forging Steel Pipe Tubes Tubings Piping Shells Casings Case barrels Housings.
FOllowing is chemical compostion of 1.2162, 21MnCr5 forged steel rings
C 0.18 - 0.24
Si 0.15 - 0.35
Mn 1.1 - 1.4
P max 0.03
S max 0.03
Cr 1 - 1.3
1.2162, 21MnCr5 is a case hardened steel. It achieves surface hardnesses of approx. 60 HRC in carburized condition. Application when required high surface hardness and ductile core. It is suitable for die typing and burnishing. Application: small and medium forms for processing of thermo and and thermosetting plastic, construction parts with high surface hardness and high strength. it is Steel susceptible to tools with a high surface hardness and tough core, dies and punches for cold metal forming, plastic moulds.
All our forged 21MnCr5 material is melted in ultra-high power electric arc furnaces and then refined using advanced ladle metallurgy. Vacuum degassing and vacuum oxygen decarburization (VOD) processes assure optimum steel cleanliness,ESR that depends on clients needs,
Following of 21MnCr5 forging parts heat treatment mechanical property Delivery condition :
MECHANICAL PROPERTIES:
Hardness after Tempering ºC Symbol Value
Soft annealing – HB ≤217
Quenching1) with 820 ºC in water – HRC62
Quenching1) with 820 ºC in water and tempering
1) after carburising
180 HRC ≥60
200 HRC 60
250 HRC 58.5
300 HRC 57
350 HRC 55
400 HRC 53.5
450 HRC 52
500 HRC 50.5
The mechanical testing of 21MnCr5 forged shafts shall be performed on the qualification on its QTC representing the heat and heat treatment lot in accordance with ASTM A370, ASTM E8 or ISO 6892-1.
Hardness testing shall be in accordance with:
— ISO 6506-1 or ASTM E10, or
— ISO 6508-1 or ASTM E18.
—ISO 6507-1 or ASTM E384 maybe used if ISO 6506-1 or ISO 6508-1 cannot be applied due to size, accessibility, or other limitations.
For our finished production of 21MnCr5 forged steel bars should have following inspection report
Identification number, material number and designation, order number, drawing number,
Specification Number;
- Heat number, heat chemical analysis, melting method and product chemical analysis;
- Certificate of heat treatment including method of cooling, actual part temperature, holding
time, cooling condition and all re-heat-treatments by complete graphic temperature time;
- Nondestructive testing records,
- Results of all Mechanical Tests,
-Results of residual stress measurements (for process qualification),
- All probable deviation reports,
- Certification of NDT inspector,
- Dimensional and visual inspection report,
- Cleaning Verified
Welcome your inquiry of 1.2162, 21MnCr5 forging parts
