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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:
Specifications:
| Description | hydraulic cylinder |
| material | 4340 |
| Material standard | ASTM or ASME |
| Dimension | Outer diameter: 1850mm, inner diameter: 1368mm and L: 2448mm |
| N.W | 24.6 tons |
| Smelting Process: | EF+LF+VD |
| Process | Ingot→heat→forging→Heat treatment(Normalizing+tempering)→Inspection→rough machining→UT→2nd Heat treatment→finishing machining→Inspection |
| UTstandard | EN10228.3:1998 |
