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Atlas Socket, Butt and Male weld ATCR™ face-seal fittings are fitted with a durable stainless steel sealing face that is explosion welded (EXW) to an aluminum body. The bond produced is extremely rugged. All face-seal fittings are helium leak tested for service in UHV environments in excess of 1×10-9 Torr. Atlas ATCR™ fittings enable robust demountable use of aluminum tubing in cryogenic, physics and semiconductor applications worldwide. Standard socket, butt, male and chamber mount weld fitting geometries are available in 1/4, 3/8, 1/2, 3/4 and 1 inch tube diameters. Chamber mount fittings are available in four length configurations suitable for 1/2, 3/4, 1 and 1-1/4 inch chamber wall thicknesses.

Atlas ATCR™ fittings are fully compatible with Swagelok VCR® and Parker-Hannifin VacuSeal® fittings, but unlike these other fittings Atlas ATCR™ fittings are used where high thermal conductivity, lightweight, high chemical resistance or where any of the advantageous physical properties of aluminum are required.
Atlas bimetallic ATCR™ fittings—the aluminum tube fitting with a stainless steel face-seal, make UHV aluminum vacuum systems a reality.

 

Specifications:

Atlas aluminum ATCR™ face-seal fittings are fully compatible with Swagelok VCR® and Parker-Hannifin VacuSeal® fittings.

Materials:

  • Body/Weld Interface: Aluminum 6061-T6
  • Seal-Face: Stainless Steel 316L, Optional Titanium (commercially pure)
  • Rotatable Nut: Aluminum 6061-T6, Optional Stainless Steel 304

Environmental:

  • Vacuum: Leak tested to < 1×10-9 cc/sec of He
  • Temperature, Peak: 300ºC (During weld-up)
  • Temperature, Operational: -200ºC to 250ºC

Mechanical (EXW Interface):

  • Tensile: 15,000psi
  • Shear: 10,000psi

Applications:

  • Cryogen feed lines
  • Aerospace

Size Size (metric) Fitting OD (A) ID (B) Length (C) Part Number Files Actions
3/8" 9.5mm 0.60" (15.2) 0.31" (8.0) 1.5" (38.1) ATCRBI-BW6010
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1/4" 6.3mm 0.35" (8.9) 0.18" (4.6) 1.5" (38.1) ATCRBI-BW5010
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1/2" 12.7mm 0.60" (15.2) 0.40" (10.2) 1.5" (38.1) ATCRBI-BW7010
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3/4" 19.1mm 0.88" (22.4) 0.62" (15.7) 1.70" (43.2) ATCRBI-BW8010
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1" 25.4mm 1.19" (30.2) 0.87" (22.2) 1.94" (49.3) ATCRBI-BW9010
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Size Size (metric) Tube OD (A) ID (B) Length (C) Weld Tab Thickness (D) Weld Tab OD (E) Hex (F) Part Number Files Actions
1/4" 6.3mm 0.18" (4.6) 1.5" (38.1) 0.25" (6.4) 1.25" (31.8) 0.75" (19.1) ATCRBI-CM5010-04
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3/8" 9.5mm 0.31" (8.0) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM6010-04
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1/2" 12.7mm 0.40" (10.2) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM7010-04
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3/4" 19.1mm 0.62" (15.7) 1.70" (43.2) 0.50" (12.7) 2.25" (57.2) 1.50" (38.1) ATCRBI-CM8010-04
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1" 25.4mm 0.87" (22.2) 1.94" (49.3) 0.50" (12.7) 2.50" (63.5) 1.75" (44.5) ATCRBI-CM9010-04
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1/4" 6.3mm 0.18" (4.6) 1.5" (38.1) 0.25" (6.4) 1.25" (31.8) 0.75" (19.1) ATCRBI-CM5010-01
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3/8" 9.5mm 0.31" (8.0) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM6010-01
Add
1/2" 12.7mm 0.40" (10.2) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM7010-01
Add
3/4" 19.1mm 0.62" (15.7) 1.70" (43.2) 0.50" (12.7) 2.25" (57.2) 1.50" (38.1) ATCRBI-CM8010-01
Add
1" 25.4mm 0.87" (22.2) 1.94" (49.3) 0.50" (12.7) 2.50" (63.5) 1.75" (44.5) ATCRBI-CM9010-01
Add
1/4" 6.3mm 0.18" (4.6) 1.5" (38.1) 0.25" (6.4) 1.25" (31.8) 0.75" (19.1) ATCRBI-CM5010-02
Add
3/8" 9.5mm 0.31" (8.0) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM6010-02
Add
1/2" 12.7mm 0.40" (10.2) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM7010-02
Add
3/4" 19.1mm 0.62" (15.7) 1.70" (43.2) 0.50" (12.7) 2.25" (57.2) 1.50" (38.1) ATCRBI-CM8010-02
Add
1" 25.4mm 0.87" (22.2) 1.94" (49.3) 0.50" (12.7) 2.50" (63.5) 1.75" (44.5) ATCRBI-CM9010-02
Add
1/4" 6.3mm 0.18" (4.6) 1.5" (38.1) 0.25" (6.4) 1.25" (31.8) 0.75" (19.1) ATCRBI-CM5010-03
Add
3/8" 9.5mm 0.31" (8.0) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM6010-03
Add
1/2" 12.7mm 0.40" (10.2) 1.5" (38.1) 0.37" (9.5) 1.75" (44.4) 1.06" (28.6) ATCRBI-CM7010-03
Add
3/4" 19.1mm 0.62" (15.7) 1.70" (43.2) 0.50" (12.7) 2.25" (57.2) 1.50" (38.1) ATCRBI-CM8010-03
Add
1" 25.4mm 0.87" (22.2) 1.94" (49.3) 0.50" (12.7) 2.50" (63.5) 1.75" (44.5) ATCRBI-CM9010-03
Add
Size Size (metric) Tube OD Socket (A) ID (B) Length (C) Male Tube Length (D) Shank OD (E) Part Number Files Actions
1/4" 6.3mm 0.26" (6.5) 0.18" (4.6) 1.5" (38.1) 0.20" (5.0) 0.35" (8.9) ATCRBI-MW5020
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3/8" 9.5mm 0.38" (9.6) 0.31" (8.0) 1.5" (38.1) 0.40" (10.2) 0.60" (15.2) ATCRBI-MW6020
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1/2" 12.7mm 0.51" (12.8) 0.40" (10.2) 1.5" (38.1) 0.40" (10.2) 0.60" (15.2) ATCRBI-MW7020
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3/4" 19.1mm 0.76" (19.2) 0.62" (15.7) 1.70" (43.2) 0.40" (10.2) 0.88" (22.4) ATCRBI-MW8020
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1" 25.4mm 1.01" (25.5) 0.87" (22.2) 1.94" (49.3) 0.40" (10.2) 1.19" (30.2) ATCRBI-MW9020
Add
Size Size (metric) Tube OD Socket (A) ID (B) Length (C) Socket Weld Depth (D) Shank OD (E) Part Number Files Actions
1/4" 6.3mm 0.26" (6.5) 0.18" (4.6) 1.5" (38.1) 0.20" (5.0) 0.35" (8.9) ATCRBI-SW5030
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3/8" 9.5mm 0.38" (9.6) 0.31" (8.0) 1.5" (38.1) 0.40" (10.2) 0.60" (15.2) ATCRBI-SW6030
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1/2" 12.7mm 0.51" (12.8) 0.40" (10.2) 1.5" (38.1) 0.40" (10.2) 0.60" (15.2) ATCRBI-SW7030
Add
3/4" 19.1mm 0.76" (19.2) 0.62" (15.7) 1.70" (43.2) 0.40" (10.2) 0.88" (22.4) ATCRBI-SW8030
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1" 25.4mm 1.01" (25.5) 0.87" (22.2) 1.94" (49.3) 0.40" (10.2) 1.19" (30.2) ATCRBI-SW9030
Add

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