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By certification 
Ultra-precision pipe of AEROTECH’s products that use of BAOGANG materials are made in the ultra clean environment under the strict quality management through the electrolytic polishing technology.(Compliance with ASTM.269 standard)
The pipe wall size FOR AP/BA/MP/EP Grade
Standard:
Gas Pressure Regulator:GB/T 12244.2006 JIS B6803:2003
EP Grade Stainless Steel Pipe:ASTM A262、A269、A370、A380、A450、 A632、A700
Valve:GB/T 12230.2005 GB/T 9092-1999
|
Outer Diameter |
Wall Thickness(mm) |
|||||
mm |
Inch |
A size |
EP Grade(mm) |
BA Grade(mm) |
SCH5S |
SCH10S |
3.18 |
1/8’’ |
|
0.51 |
0.71 |
|
|
6.35 |
1/4’’ |
|
0.89 |
1 |
|
|
9.53 |
3/8’’ |
|
0.89 |
1 |
|
|
12.7 |
1/2’’ |
|
1 |
1.24 |
|
|
19.05 |
3/4’’ |
|
1 |
1.24 |
|
|
25.4 |
1’’ |
|
1 |
1.24 |
|
|
The pipe wall parameters
|
Wall thickness(mm) |
The allowable value of the wall thickness |
Up to 2.0 |
±0.2mm |
Over 2.0 |
±10% |
4.0/4.5/5.0/5.5 |
15%-12.5% |
5.0/5.5/6.5 |
MIN-12.5% |
8 |
MIN-12.5% |
For BA/MP/EP Grade
|
Outer diameter |
The allowable value of outer diameter |
The allowable value of outer diameter |
|
mm |
Inch |
||
3.18 |
1/8’’ |
0.06-0 |
±12.5% |
6.35 |
1/4’’ |
0.05-0 |
±10% |
9.53 |
3/8’’ |
0.06-0 |
|
12.7 |
1/2’’ |
0.07-0 |
|
19.05 |
3/4’’ |
0.08-0 |
|
25.4 |
1’’ |
0.09-0 |
|
Standard Material
|
C |
Si |
Mn |
P |
S |
Ni |
Gr |
Mo |
|
SUS316L |
ASTM |
Max0.03 |
Max1.00 |
Max2.00 |
Max0.045 |
Max0.030 |
Max12.00-16.00 |
16.00-18.00 |
2.00-3.00 |
TP |
Sample |
0.018 |
0.35 |
0.72 |
0.026 |
0.003 |
12.63 |
16.68 |
2.1 |
Tention Test
|
Yield strength |
Tention strength |
Tention |
||
Seamless steel tube |
SUS316L |
ASTM |
Min175 |
Min480 |
Min35 |
Sample |
260 |
582 |
60 |
||
Hardness Test
|
Vivtorinox hardness |
|
Seamless steel tube |
SUS316L |
144 |
INNER SURFACE ROUGHNESS For Semiconductor and Liquid Crystal Plants
|
Outer diameter |
Wall Thickness |
The inner surface roughness |
||
mm |
Inch |
EP grade |
||
3.18 |
1/8’’ |
0.51 |
Ra≤0.2um |
Ra≤1.0um |
6.35 |
1/4’’ |
0.89 |
Ra≤0.2um |
Ra≤0.5um |
1.0 | ||||
9.53 |
3/8’’ |
0.89 |
||
12.7 |
1/2’’ |
1.0 |
||
19.05 |
3/4’’ |
1.0 |
||
25.4 |
1’’ |
1.0 |
||
