817M40 / EN24 ESR Quality Hardening Steel
| Product parameters | |
| Material Category:: | High Tensile Structural Steel |
| Place of Origin: | P. R. China |
| Melting Process Route:: | BEF + AOD / +ESR |
| Min. order quantity Per Batch:: | 3300 kg / 1300 kg |
| Certification:: | MTR, COC, Certificate of origin, Form A/E, Invoice, Packing list |
| Ultrasonic Test Standard:: | ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308 |
| Standard Export Packing Way:: | Wooden box, pallet, or per buyer |
| Production Lead Time:: | Within 65 days after 40% deposit prepayable |
| Company ISO Register No:: | 04321Q32740R0S |
Description
EN24T / 817M40. is usually supplied in the T condition with a tensile strength of 850 ~ 1000MPa. its hardness is in the range HBW 248 ~ 302. EN24 can be further surface-hardened to create components with enhanced wear resistance by induction or Nitriding processing.
Profile and Dimensions:
Round bar (Diameter): 5.5 to 450mm
Square bar / Flat bar: T3 to 500 X W3 ~ 1200mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
Chemcial Compositons (Mass weight - %) - Grade 817M40 / EN24T
C (％): 0.36 ~ 0.44, Si (%): 0.15 ~ 0.40, Mn (％): 0.45 ~ 0.70, P (％)≤: 0.025, S (％)≤: 0.025
Cr (%): 1.00 ~ 1.40, Ni (%): 1.30 ~ 1.70, Mo (%): 0.20 ~ 0.35, Fe (%): balance
Typical Mechanical Properties AT RM
Tensile strength,σb/≥ MPa: 850 ~ 1000
Yield strength, σ0.2/≥ MPa: 635
Elongation, δ ≥(％): 13.0
Reduction of area, (%): -
Annealed hardness, HB ≤: 248 ~ 302
