Ultra High Purity

HYG Benelux BV offers a comprehensive range of Ultra-High Purity (UHP) products, including Seamless & Welded Tubes, UHP Coaxial Tubing, ASME BPE, 3A, and KS standards. With a focus on precision and reliability, our products are designed to meet the stringent requirements of critical applications. We ensure quick availability and tailored solutions to support your specific needs.

uhp seamless welded

UHP Seamless & Welded

Ultra 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 coaxial

UHP COAXIAL

Ultra 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 bpe

ASME BPE

For 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

SurfaceIDODPolish MethodPolish Method
FinishRa
(µ-inch/µm)
Ra
(µ-inch/µm)
IDOD
SF0BA/BABA/BAUnpolishedUnpolished
SF120/0.5032/0.8Mechanically PolishedMechanically Polished
SF225/0.6332/0.8Mechanically PolishedMechanically Polished
SF330/0.7632/0.8Mechanically PolishedMechanically Polished
SF415/0.3832/0.8Electro-polishedMechanically Polished
SF520/0.5032/0.8Electro-polishedMechanically Polished
SF625/0.6332/0.9Electro-polishedMechanically Polished

Dimension

  • Imperial Sizes: OD 1/4” – 6”

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)
uhp coaxial

3A, KS

For Food and Beverage, Hygienic Applications

Item

  • Stainless Steel Tube

Applicable Specifications

  • ASTM A270, KS D 3585

Typical Materials

  • 304, 304/L, 316/L

Finish

SurfaceIDODPolish MethodPolish Method
FinishRa
(µ-inch/µm)
Ra
(µ-inch/µm)
IDOD
BABA/BABA/BAUnpolishedUnpolished
BAPBA/BA32/0.8UnpolishedMechanically Polished
PBA20/0.5BA/BAMechanically PolishedUnpolished
MP25/0.532/0.8Mechanically PolishedMechanically 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