8 Gaugeable Tube Fittings and Adapter Fittings Materials
Materials Standards Material
316 stainless steel
Alloy 20 Alloy 400
Bar Stock➀ ASTM A276,
ASME SA479, EN 1.4401 ASTM B473 ASTM B164
Alloy C-276 Aluminum Brass
Carbon steel Nylon PFA➄ PTFE
SAF 2507➅
Titanium (grade 4)
ASTM B446➂ ASTM B425 ASTM B574 ASTM B211
Forgings➁ ASTM A182,
ASME SA182, EN 1.4401 ASTM B462
ASTM B564, ASME SB564
Alloy 600 ASTM B166, ASME SB166 ASTM B564, ASME SB564 Alloy 625 Alloy 825
ASTM B16, ASTM B453 ASTM A108 ASTM D4066 —
ASTM D1710 ASTM A479
ASTM B348
➀ Straight fittings and tube adapters. ➁ Elbows, crosses, and tees.
➂ All straight fittings and tube adapters and 1/4 and 3/8 in.; 6 and 10 mm elbows, crosses, and tees.
➃ Elbows, crosses, and tees larger than 3/8 in. and 10 mm. ➄ See the Swagelok PFA Tube Fittings catalog, MS-01-05.
➅ See the Swagelok Gaugeable SAF 2507 Super Duplex Tube Fittings catalog, MS-01-174.
Additional Processing
Fitting bodies are processed for improved performance, as listed below. No additional processing is required for alloy 625, alloy 825, brass, nylon, 316 stainless steel, and PTFE materials.
Fitting Body Material Aluminum
Alloy 400, alloy 20, alloy C-276, alloy 600
Carbon steel (except weld bodies) Carbon steel (weld bodies) Titanium
Process
Anodized, hydrocarbon film Hydrocarbon film Zinc plating
Hydrocarbon film chemical conversion coating
Anodized
■ Over 1 in./25 mm fittings are supplied with a package of fluorinated-base with PTFE and tungsten disulfide lubricant for use in fitting assembly.
■ Over 1 in./25 mm stainless steel fittings use stainless steel ferrules with PFA coating. Applications above 450°F (232°C) require silver-plated front ferrules and uncoated back ferrules. To order fittings with silver-plated front ferrules and uncoated back ferrules, add -BM to the fitting ordering number.
Example: SS-2400-6-BM
■ All carbon steel Swagelok tube fittings are supplied with 316 stainless steel back ferrules.
ASTM B564, ASME SB564➃ ASTM B564, ASME SB564 ASTM B564 ASTM B247 ASTM B283 — —
ASTM D3307 Type I ASTM D3294 ASTM A182
ASTM B381
Thread Specifications Thread Type (End Connection)
NPT
ISO/BSP (parallel) (Based on DIN 3852)
(Swagelok PR, RP, and RS fittings)
ISO/BSP (tapered) (Based on DIN 3852) (Swagelok RT fittings)
ISO/BSP (gauge)
(Based on EN 837-1 and 837-3) (Swagelok RG and RJ fittings)
Unified (SAE) (Swagelok ST fittings) Pipe Thread Sealants
A thread sealant should always be used when assembling tapered threads. SWAK® anaerobic pipe thread sealant and Swagelok PTFE tape are available. For more information, see the Swagelok Leak Detectors, Lubricants, and Sealants catalog, MS-01-91.
O-Rings
O-seal fittings include a 70 durometer Buna N O-ring. Other straight-thread fittings with O-rings include a 90 durometer fluorocarbon FKM O-ring. Other O-ring materials are available upon request. O-rings are coated with a thin film of silicone-based lubricant. Removal of factory-applied lubricants may alter performance.
Cleaning and Packaging
Fitting components are cleaned to remove machine oil, grease, and loose particles. For more information, see Swagelok Standard Cleaning and Packaging (SC-10), MS-06-62.
Fittings are available individually bagged; add CP to the ordering number.
Example: SS-200-6CP
On request, fittings can be cleaned and packaged in accordance with Swagelok Special Cleaning and Packaging (SC-11), MS-06-63, with front ferrules silver plated and Krytox® 240 AC applied to the internal surface of the nut. To order, add BQ to the ordering number.
Example: SS-400-1-4BQ
Oxygen Service Hazards For more information about hazards and risks of oxygen- enriched systems, see the Swagelok Oxygen System Safety technical report, MS-06-13.
Alternative Fuels-Type Approval
Stainless steel Swagelok tube fittings used with 316 stainless steel and 316 Ti stainless steel alloy tubing as shown in the table have been tested to the requirements of ECE R110, EIHP Draft, and ECE R67.
Tube OD Wall Thickness
3 to 16 mm 0.7 to 2.5 mm 1/8 to 5/8 in. 0.028 to 0.095 in.
ISO 228, JIS B0202 ASME B1.1
ISO 7, BS EN 10226-1, JIS B0203
Reference Specification ASME B1.20.1, SAE AS71051
ISO 228, JIS B0202
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