Products

Air Conditioning & Refrigerating Tubes

Diligent quality control allows us to provide customers with high levels of reliability and accuracy of dimension in our air-conditioning and refrigeration-use copper tubes.

Millimeter-size

Nominal diameter Outer diameter Wall thickness Max applicable pressure Allowable tensile stress Temper grade
D t P   S  
mm mm MPa kgf/cm2 MPa kgf/mm2
6 6 0.8 9.9 100 33 3.4 O
6 6 1.0 12.7 129 33 3.4 O
8 8 0.8 7.2 73 33 3.4 O
8 8 1.0 9.2 93 33 3.4 O
10 10 0.8 5.6 58 33 3.4 O
10 10 1.0 7.2 73 33 3.4 O
12 12 1.0 5.9 60 33 3.4 O

Note: P=2・t・S / (D-0.8t)

Inch-size

Nominal diameter Outer diameter Wall thickness Max applicable pressure Allowable tensile stress Temper grade
D t P   S  
mm mm MPa kgf/cm2 MPa kgf/mm2
1/4 6.35 0.8 9.2 94 33 3.4 O
 3/8 9.52 0.8 5.9 61 33 3.4 O
 1/2 12.7 0.8 4.4 45 33 3.4 O
 1/2 12.7 1.0 5.5 57 33 3.4 O
 5/8 15.88 0.8 3.5 35 33 3.4 O
 5/8 15.88 1.0 4.4 45 33 3.4 O
 3/4 19.05 1.0 3.6 37 33 3.4 O

Note: P=2・t・S / (D-0.8t)

Inch-size Tubes

Nominal diameter Outer diameter Wall thickness Max applicable pressure Allowable tensile stress Temper grade
D t P   S  
mm mm MPa kgf/cm2 MPa kgf/mm2
1/4 6.35 0.8 17.1 174 61 6.2 1/2H
 3/8 9.52 0.8 11.0 112 61 6.2 1/2H
 1/2 12.7 0.8 8.1 83 61 6.2 1/2H
 1/2 12.7 1.0 10.3 105 61 6.2 1/2H
 5/8 15.88 0.8 6.4 65 61 6.2 1/2H
 5/8 15.88 1.0 8.1 82 61 6.2 1/2H
 3/4 19.05 0.8 5.3 54 61 6.2 1/2H
 3/4 19.05 1.0 6.7 68 61 6.2 1/2H
 7/8 22.22 1.0 5.7 58 61 6.2 1/2H
1 25.4 1.0 5.0 51 61 6.2 1/2H
1 25.4 1.2 6.0 61 61 6.2 1/2H
1 1/8 28.58 1.0 4.4 45 61 6.2 1/2H
1 1/8 28.58 1.2 5.3 54 61 6.2 1/2H
1 1/4 31.75 1.0 3.9 40 61 6.2 1/2H
1 1/4 31.75 1.1 4.3 44 61 6.2 1/2H
1 1/4 31.75 1.2 4.8 48 61 6.2 1/2H
1 3/8 34.92 1.1 3.9 40 61 6.2 1/2H
1 3/8 34.92 1.2 4.3 44 61 6.2 1/2H
1 1/2 38.1 1.15 3.8 38 61 6.2 1/2H
1 1/2 38.1 1.2 3.9 40 61 6.2 1/2H
1 1/2 38.1 1.35 4.4 45 61 6.2 1/2H
1 5/8 41.28 1.2 3.6 37 61 6.2 1/2H
1 5/8 41.28 1.4 4.3 43 61 6.2 1/2H
1 3/4 44.45 1.25 3.5 36 61 6.2 1/2H
1 3/4 44.45 1.4 3.9 40 61 6.2 1/2H
2 50.8 1.4 3.4 35 61 6.2 1/2H
2 50.8 1.5 3.7 38 61 6.2 1/2H
2 1/8 53.98 1.5 4.5 46 79 8.1 H
2 1/2 63.5 1.75 4.5 45 79 8.1 H
2 1/2 63.5 2.0 5.1 52 79 8.1 H
2 5/8 66.68 1.85 4.5 46 79 8.1 H
2 5/8 66.68 2.0 4.9 50 79 8.1 H

Note: P=2・t・S / (D-0.8t)