E355 St52 Hard Chrome Plated, Honed, Machined or Turned Seamless Steel Tube for Concrete Delivery Cylinder or Concrete Pump - Buy Product on Changzhou Chengxin Metal Products Co., Ltd.

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Product Description

1. Description: Concrete delivery cylinder is a kind of tube parts made from high precision honed tubes through machining & turning. Internal surface of cylinder is hard chrome plated and polished to roughness of Ra0.25um max.

2. Commodity: E355 hard chrome plated and honed seamless steel tube

3. Size range: ID of 80mm-280mm

4. Available steel grade:

SAE/AISI	1045, 1518, 1524
DIN	ST52
EN	E355, C45E, CK45

5. Manufacture procedure: hard chrome plating, polishing, welding, machining & turning.

6. Thickness of chromed layer: 0.2mm-0.25mm or as per request.

7. Hardness of chromed layer: HV850 min

8. Bore roughness after hard chrome plating: Ra025um max.

9. ID tolernace: +0/+0.1mm

10. Standard export packing: by plywood boxes.

11. Customized packing and marking can be provided upon request.

Concrete delivery cylinder: made from cold drawn tubes and painted

Concrete delivery cylinder: made from hot rolled seamless pipes

Concrete delivery cylinder: externally machined surface

Concrete delivery cylinder: welding, turning as per drawing

Concrete delivery cylinder: packing

FAQ

1. MOQ: Generally Min Order Quantity can be 1 piece/size.

2. Delivery Time: Generally, delivery time is around 40-60 days depending on availability of raw material.

3. Warranty & Guarantee: Warranty & guarantee period is 6 months since we deliver the tubes, and we are not responsible for quality problem caused by wrong unloading or storage after shipment. We welcome customer's inspection before shipment.

4. Payment Method: We accept payment method like T/T, L/C, or D/P, but it depends on our investigation about customers. We have a solution to evaluate the credit of customers from all over the world, and time and amount of D/P we can release is determined by the evaluation.

5. Quality Control: 90% of the tubes are made from hot rolled seamless pipes. So, quality of raw material determined quality of finished tubes. We purchase raw material from stable suppliers who are leading steel mills, and we inspect the raw material as per the specifications. During our production procedure, there is inspection and quality control in every stage.

What We Offer

Quality Raw Material

We use high quality raw material from leading manufacturers.
Strict Quality Control

Strict quality control before, during and after production. Any quality dispute or problem will be immediately reported and handled internally.
Flexible Production Arrangment

To ensure both delivery time and customer experience.
Customization

In addition to steel tube we produce, we also provide services like OD machining, OD polishing, ID honing or skiving&roller burnishing, initial CNC turning.

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Packing & delivery

We have established strict quality control circle covering raw material receipt, in-production inspection, and finished product control, and inspection&test records will be kept in our management system.

Packaging

For each piece of tube we delivered, Mill Test Certificate will be issued, and quality guarantee will be given. We give a period of 1-3 months for claim of quality dispute and problems after cargo receipt, depending on actual situation.