Description
Jiangsu Liangyi is professional manufacturer of 24CrMo5,1.7258,24 CrMo 5 open die forging parts and seamless rolled steel forged rings from china
Following is the shape of 24CrMo5,1.7258,24 CrMo 5 forging steel material that we could do is:24CrMo5 Forged Steel round bars square bars Flat bars Rectangles Bars Rods,24CrMo5 Forged forging steel rings seamless rolled rings,1.7258 Forged Forging Steel Hubs housing shell Sleeves Bushes Bushing Cases Hollow Bars,1.7258 Forged Forging Steel Discs Disks Blocks plates,24CrMo5 Forged Forging Steel Pipe Tubes Tubings Piping Shells Casings Case barrels Housings.
FOllowing is chemical compostion of 24CrMo5,1.7258,24 CrMo 5 forged steel rings
Carbon, C (％): 0.20 ~ 0.28
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.50 ~ 0.80
Phosphorus, P (％)≤: 0.035
Sulfur, S (％)≤: 0.035
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.20 ~ 0.35
Nickel, Ni (％): ≤ 0.60
MELT PRACTICE of 24CrMo5 forged parts
Steels made to this specificationshall be produced using refining and melt practices that can produce steels that are free from detrimental defects. The electric furnace methodshall be used to produce steels for this specification. Refining practices including argon / oxygen decarburization and vacuum degassing are acceptable.
FORGING PRACTICE
Forging practice shall be in accordance with ASTM A788.
REDUCTION RATIO
The minimum forging reduction ratio of 24CrMo5 forging parts shall be 3 to 1.
Following of 24CrMo5 forging parts heat treatment mechanical property Delivery condition :
0.2% Proof stress (MPa)440 min
Tensile strength (MPa) 600~750
Elongation (%) 18 min 18 min
Reduction area, Z (%) 60 min
CVN room temp (Joule) 60 min
Following is inspection standard of 24CrMo5,1.7258 forged parts
ASTM E8 Tension Testing of Metallic Materials
ASTM E38 Chemical Analysis of Nickel-Chromium and Nickei-Chromium Iron Alloys
ASTM E112 Estimating the Average Grain Size of Metals
ASTM E139 Coaducting Creep,Creep-Rupture and Stress Rupture Tests oi Metaliic Materials
ASTM A370 mechanical Testing of Steel Products
For our finished production of 24CrMo5,1.7258 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 24CrMo5,1.7258,24 CrMo 5 forging parts
