WRAPPED AND SEAMLESS CYLINDERS FOR ULTRA-HIGH PURITY MATERIALS

WRAPPED AND SEAMLESS CYLINDERS FOR ULTRA-HIGH PURITY MATERIALS (GASES)

Brand: KAIGEN, LEO

Cylinder Material: Seamless Steel (37Mn, 34CrMo4, 30CrMo, 4130X, 35CrMo), aluminum alloy (6061)

A. Ground Seamless Steel Cylinders

The inner wall of the gas cylinder is ground to meet the key technical requirements, including‌ inner wall roughness, cleanliness, water and oxygen content to meet the requirements for filling, storage and transportation of high-purity gas (purity ≥ 99.9999%).

a. Basic Requirement Parameters

1. Roughness: Conventional Ra ≤ 0.3 μm, can be customized to achieve 3S (Ra ≤ 0.6 μm), 1S (Ra: 0.03 μm – 0.5 μm), etc.

2. Water content: Conventional ≤ 0.5 ppm, can be customized to achieve ≤ 0.1 ppm.

3. Oxygen content: Conventional ≤ 0.5 ppm, can be customized to achieve ≤ 0.1 ppm.

4. Oil content: Conventional ≤ 25 mg/m², can be customized to achieve ≤ 5 mg/m², no fluorescent reflection.

5. Helium leak detection: ≤ 8.0×10^-7 mbar·L/s

6. Granularity: <5 quantity / ft³ (Particle ≥ 0.1 um)

7. Nitrogen pressure: 99.9999% (6N) ultra-pure nitrogen, 0.3 MPa, and can be customized.

8. Filling medium: SiH₄, NF₃, NH₃, CF₄, Cl₂, BF₃, BCl₃, SF₆, HCl, SiCl₄, N₂O, Xe, Kr, etc.

B. Nickel-plated Seamless Steel Cylinders

The nickel-plated gas cylinder undergoes special nickel-plating pretreatment, inner surface grinding and polishing, electroless nickel-phosphorus alloy plating, and clean washing treatment. Its surface is bright and easy to clean, and it has strong wear resistance and corrosion resistance, as well as a long service life. It has a wide range of applications and is suitable for filling with corrosive electronic gases, such as HBr and HCl, ultra-pure gases, or low-concentration standard gases.

a. Basic Requirement Parameters

1. Volume: 1.62 L - 50 L

2. Roughness: Ra < 0.3 μm

3. Plating Process: Electroless Plating

4. Plating Thickness: ≥ 35μm

5. Advantages: High internal wall cleanliness, corrosion resistance and wear resistance

6. Applicable Media: Corrosive electronic gases, such as HCl, HBr, HF, etc., ultra-pure gases like 99.9999% (6N) and 99.99999% (7N) gases, as well as low-concentration standard gases

b. Plating Layer Tests

1. Adhesion Test: pull-out test, percussion method, thermal shock test, cross-cut test

2. Blue Spot Corrosion Test: No blue spots were found after 30 seconds of corrosion

3. Neutral Salt Spray Test: No corrosion after 48 hours of neutral salt spray

4. Nickel-plated Sample Fatigue Test: The fatigue load is 250 - 300 MPa. The number of inspections is over 12,000 times. There is no peeling, falling off or bulging

5. Pressure Cycle Fatigue Test: 12,000 times, there are no peeling, falling off or bulging

C. Aluminum Alloy Gas Cylinder (The process is confidential, please contact us for more information)

1. Special pickled aluminum alloy gas cylinders

Applicable to low-activity acidic gases

2. Aluminum alloy internal coating gas cylinders

According to the type, composition, concentration, and properties of the gas or filling material, we provide a variety of coating material solutions and metal plating solutions, suitable for filling CH₄SH₂S, NH₃, VOCs, HF, halides and low-concentration active gases.

3. Inner surface ground and chemically polished gas cylinders are suitable for the filling, storage and transportation of ultra-high purity gases and most easily adsorbed gases, such as Electronic Gases and so on.

D. Valve

1. Selected materials carefully to provide you with the best performance and ensure ultra-high Purity (1×10⁻⁸ mbar·L/s tightness).

2. Excellent performance to meet all application requirements.

3. All internal surfaces are electropolished for better corrosion resistance and longer life.

4. Special alloy materials to meet all application requirements.

5. A variety of standard connections available.

This type of gas cylinders has strict professional and strict requirements on inner wall treatment, inner chamber environment and process. KAIGEN is your right choice.