
UHP Seamless & WeldedUltra high purity for semiconductor, microelectronics applications.
Item
- Stainless Steel Tubes & Fittings
Applicable Specifications
- ASTM A249, A269, A632, ASME SA249, SA269
- ASTM A213, ASME SA213
- JIS G3459
Typical Materials
- 316/L single melt, EN1.4404, 316/L double melt (optional)
- * Other materials available upon request
Finish
- EP ID 0.25μm max, OD Mechanically Polished 0.80μm
- BA ID 0.38μm max, OD Mechanically Polished 0.80μm
- BA.AC (Anodic Cleaned) ID 0.38μm max, OD Mechanically Polished 0.80μm
Dimension
- Imperial Sizes : OD .125” – 6”
- A Sizes : OD 15A – 600A
Technical Requirements
- Precision cleaned with warm ultra pure supersonic immerse & inner cleaning
- N2 purged with heated and filtered nitrogen (gas purity 99.9998%)
- Cleaned, purged and packaged in clean room Class 100
- Individually End-capped, Double PE Sleeved, Wooden Box Packaging
- Particle & Oil Residue Tested
- Intergranular Corrosion Tested acc. to ASTM A 262 Practice E (optional)

UHP COAXIALUltra High Purity for special gas handling applications
Item
- Stainless Steel Coaxial Tubes & Fittings
Applicable Specifications
- ASTM A213, A269, A632, JIS G3459
Typical Materials
Inner Process Tube
- 316/L single melt – seam type : seamless
- 316/L double melt (optional)
Outer Containment Tube
- 304 – seam type : welded
- 304, 304/L, 316/L: seam type – seamless (optional)
Finish
EP | Inner Process Tube
- ID 0.25μm max or 10 Ra max
BA | Outer Containment Tube
- ID Bright Annealed, OD Mechanically Polished 0.80μm
Dimension
Imperial Sizes
- .250” x .500”.375” x .625”.500” x .750”
- .750” x 1.00”1.00” x 1.25”1.00” x 1.50”
- 1.50” x 2.00”2.00” x 2.50”
Length
- 4m
- 6m
Technical Requirements
- Precision cleaned with warm ultra pure supersonic immerse & inner cleaning
- N2 purged with heated and filtered nitrogen (gas purity 99.9998%)
- Cleaned, purged and packaged in clean room Class 100
- Individually End- capped, Double PE Sleeved, Wooden Box Packaging
- Particle & Oil Residue Tested
- Outer Containment Tube – Helium – leak Tested (optional)
- Intergranular Corrosion Tested acc. to ASTM A262 Practice E (optional)

ASME BPEFor Pharmaceutical Applications
Item
- Stainless Steel Tubes & Fittings
Applicable Specifications
- ASME SA249, ASTM A269, A270-S2, ASME BPE
Typical Materials
- TP316L, EN1.4404, EN1.4435 restricted sulfur (0.005 – 0.015%)
Finish
Surface | ID | OD | Polish Method | Polish Method |
---|---|---|---|---|
Finish | Ra (µ-inch/µm) | Ra (µ-inch/µm) | ID | OD |
SF0 | BA/BA | BA/BA | Unpolished | Unpolished |
SF1 | 20/0.50 | 32/0.8 | Mechanically Polished | Mechanically Polished |
SF2 | 25/0.63 | 32/0.8 | Mechanically Polished | Mechanically Polished |
SF3 | 30/0.76 | 32/0.8 | Mechanically Polished | Mechanically Polished |
SF4 | 15/0.38 | 32/0.8 | Electro-polished | Mechanically Polished |
SF5 | 20/0.50 | 32/0.8 | Electro-polished | Mechanically Polished |
SF6 | 25/0.63 | 32/0.9 | Electro-polished | Mechanically Polished |
Dimension
- Imperial Sizes: OD 1/4” – 6”
Finish
Surface | ID | OD | Polish Method | Polish Method |
---|---|---|---|---|
Finish | Ra (µ-inch/µm) | Ra (µ-inch/µm) | ID | OD |
SF0 | BA/BA | BA/BA | Unpolished | Unpolished |
SF1 | 20/0.50 | 32/0.8 | Mechanically Polished | Mechanically Polished |
SF2 | 25/0.63 | 32/0.8 | Mechanically Polished | Mechanically Polished |
SF3 | 30/0.76 | 32/0.8 | Mechanically Polished | Mechanically Polished |
SF4 | 15/0.38 | 32/0.8 | Electro-polished | Mechanically Polished |
SF5 | 20/0.50 | 32/0.8 | Electro-polished | Mechanically Polished |
SF6 | 25/0.63 | 32/0.9 | Electro-polished | Mechanically Polished |
Technical Requirements
- Intergranular Corrosion Tested acc. to ASTM A270 S1
- Weld Decay Test acc. to ASTM A249 S7
- Meets minimum surface requirements (Cr/Fe Ratio. Depth Acc. H-3.3-1)
- Thermocouple Cleaned according to ASTM A632 / S3
- CFOS cleaning according to CGA G-4.1 and ASTM G 93-03 (optional)

3A, KSFor Food and Beverage, Hygienic Applications
Item
- Stainless Steel Tube
Applicable Specifications
- ASTM A270, KS D 3585
Typical Materials
- 304, 304/L, 316/L
Finish
Surface | ID | OD | Polish Method | Polish Method |
---|---|---|---|---|
Finish | Ra (µ-inch/µm) | Ra (µ-inch/µm) | ID | OD |
BA | BA/BA | BA/BA | Unpolished | Unpolished |
BAP | BA/BA | 32/0.8 | Unpolished | Mechanically Polished |
PBA | 20/0.5 | BA/BA | Mechanically Polished | Unpolished |
MP | 25/0.5 | 32/0.8 | Mechanically Polished | Mechanically Polished |
Dimension
- Imperial Sizes : OD 1/4” – 6”
- A Sizes : 15A – 150A
Technical Requirements
- Thermocouple Cleaned according to ASTM A632/S3 (optional)
- Intergranular Corrosion Tested acc. to ASTM A270 S1