4140 42 CrMo4 45 Stainless Steel Forging Blind Hole Oil Cylind Hydraulic Cylinder

               ASTM 4340 alloy steel hydraulic cylinder for   petrochemical equipment

Description:

Hydraulic cylinder is the key parts f petrochemical equipment, pressure vessels and other equipment the common material are 4140, 4340 and 45# steel

It conforms to the standards of JB/T4730, EN 13445-2002 and ASME

Material smelting process: EF + LF + VD

Manufacturing equipment is 60MN hydraulic press

Forging reduction ratio ≥3:1

UT standard is in accordance with the standard of JB/T5000.15-2007

Port of loading: FOB Shanghai port

Delivery time: 45 days

Process procedure:

Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment

Features:

1. High-precision dimensional tolerance;
2. Excellent mechanical properties;
3. Produce different dimension based on customer’s requirements;
4. Advanced manufacture equipments and inspection devices;
5. Excellent technical personality;
6. Control the production procedure strictly;
7. Pay attention on the package protection;
8. Quality full service.

Specifications: