Payment & Shipping Terms:
|Forging Ratio:||≥3||Heat Treatment:||Q+T|
|Melting Process:||EF+LF+VD||Steel Grade:||Alloy Steel|
|Surface:||Polished||Diameter:||As Your Requires|
|Foring Equipment:||8000T Open Die Hydropress|
4340 Blower main shaft Forged alloy steel CNAS certificate Finish maching
Manufacturing high strength, good plasticity of important parts, nitriding treatment after the manufacture of special functional requirements of important parts, such as shaft, gear, fasteners, etc.
|4340||Tensile strength Mpa||Yield strength Mpa||Elongation||section shrinkage||Impact(20℃)||Hardness|
|Analysis Identification||850-1000||≥665||≥ 13%||≥50%||≥35 J||248 - 302 HB|
CNAS is approved by the Certification and Accreditation Administration and authorized the establishment of the national accreditation body, unified responsible for certification bodies, laboratories and inspection bodies and other related institutions of accreditation work.
UT inspection site:
High-precision dimensional tolerance;
Excellent mechanical properties;
Produce different dimension based on customer’s requirements;
Advanced manufacture equipments and inspection devices;
Excellent technical personality;
Control the production procedure strictly;
Pay attention on the package protection;
Quality full service.
Contact Person: xuehao