Thick Wall 18 Inch Nickel Alloy Pipe 45# C45 S45C 1045 OD16mm OD12mm

45# C45 S45C 1045 OD16mm OD12mm thick wall alloy steel pipe for barrel air rifle

Major OD 16mm and 12mm others also available

Tube size can be designed as per customers requirements

Best hardness and machining ability

SIZE:

Outer Diameter: 1.5mm-60mm

Wall Thickness: 0.3mm to 10mm

Certificates:

According to EN 10204 3.1

Inspection Items:Tensile stength, Yield stength, Elongation, Flattenging, FlaringChemical analysisEddy Current

Test 100%, Size and surface checking 100%Other test item can be arranged as per request

DELIVERY CONDITIONS:

The tubes can be produced in the following delivery conditions:

BK (+C) Cold finished/hard (cold finished as drawn).

No heat treatment after the last cold forming process.

BKW (+LC) Cold finished/soft (lightly cold worked)

After the last heat treatment there is a light finishing pass (cold drawing).

BKS (+SR) Cold finished/stress relieve annealed.

After the final cold forming process the tubes are stress relieve annealed.

GBK (+A) Annealed.

After the final cold forming process the tubes are annealed in a controlled atmosphere.

NBK (+N) Normalized. (Mainly focus on)

After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere

Some samples of related steel grade

Other grades also availabe upon customer's request and market situation

SURFACE TREATMENTS

1. Bare Tube (No coating): Bright and smooth, Surface Roughness both inner and outer surface 0.2Ra Maximum for special requirement

2. Surface Coating

A. Silver galvanized

B. Yellow galvanized

C. Olive green coated

Layer thickness: 8-20um, Salty Spray Test: 48-150 hours

3. Black phosphate

Steel bar from steel plant→Physical and chemical inspection→Surface treatment →Cutting → Heating→Hot piercing→Shell storage→Pickling and lubrication→Cold rolling→Heattreatmen →Pickling and lubrication→Cutting→Punching→Cold drawn→Size inspection→Outer and inner surface cleaning→NBK or GBK→Mechanics inspection→Chemical analysis

Antlrust oil palnting→print→packing→flnished storage→Dellivery with quality certificate

1.We adopt special techniques and special skill in the acid cleaning process to deal with the place where it's easy to form fold crevice;
2.Well organized process,especially annealing treatment in a severely technical manner;
3.In respect with lubrication,we adopt the international advanced level treating process in the world,and put the surface quality of our productsunder strict control in order to prevent causing surface crack.