A.T. Wall

A.T. Wall possesses a wide range of seamless and welded tubing geared toward the customer who requires responsiveness and flexibility. We are an ISO 9001:2015 registered custom manufacturer who stocks tubular raw material in a broad range of alloys. We accept small orders and ship globally.

Capabilities

Tube Drawing

  • Glass to Metal Tubing
  • Sidewall Frames
  • General Engineering Tubing
  • Tantalum Tubing
  • Beryllium Copper Tubing

Seamless Cold drawn Glass to Metal tubing, commonly know as Kovar*. Various other Nickel Iron alloys and other specialty metals also available. Size ranges from .020” – 6.00”.

A.T. Wall Company has produced Glass to Metal tubing for the Electronics Industry for over 25 years. The material commonly known as Kovar* is an alloy of Nickel, Cobalt and Iron and is uniquely designed for Glass To Metal sealing. A.T. Wall produces seamless straight length tubing for a variety of highly sophisticated applications.

Tube Shapes

Rounds, squares, triangles, rectangles, ovals, half-rounds, hexagons, and fluted rounds. Other configurations available upon request.

Size Range

  • Outside Diameter 0.020 in. to 6.000 in.
  • Wall Thickness 0.003 in. to 0.500 in.

Lengths

  • Exact cut lengths to 0.025 in. minimum
  • Mill lengths up to 20 ft.
  • Arbor wound coils on request.

Tolerances

Precision tolerances are normally one half of the commercial tolerances. Thousands of tool combinations permit us to ensure your most stringent tolerance needs.

Quality Specifications

  • MIL-I-45208A Inspection System
  • MIL-STD-45662A Calibration System
*Kovar is a registered trademark of Carpenter Technology
  • Tubular side wall frames for hybrid microelectronic circuit packages
  • Markets served: Defense, Commercial electronics, Communications, Medical
  • Wide range of open tooling for quick delivery
  • Hydraulic press forming of nickel alloy plate
  • Traditional tube annealing, cold drawing, cutting to size
  • Secondary operations include lap grinding, sidewall hole piercing

Materials

  • Nickel-iron alloys (29/17, Kovar*, ASTMF-15, 42 alloy, 44 alloy, 46 alloy, 52 alloy)
  • Carbon steel
  • Stainless steel
  • Copper

Shapes

  • Squares
  • Rectangles
  • Rounds
  • Special custom shapes

Sizes

  • Wall thicknesses from 0.010″ to 0.250″
  • Outside dimensions (length x width) from 0.062″ x 0.032″ to 4.000″ x 2.000″
  • Heights from 0.025″ to 2.000″

*Kovar is a registered trademark of Carpenter Technology

  • Specialty cold drawn tubing
  • Traditional and special tubular shapes finished as random or exact cut lengths
  • Unique hydraulic press-forming processing from plate
  • Markets served include: Aerospace, Defense, Medical and other industries where repeatable high quality is needed

Materials

  • Kovar* (29/17, ASTM F-15), invar 36, other nickel/iron alloys
  • Nickel & Nickel Alloys
  • Cupro Nickel
  • Monel (400, 404), MU metal
  • Tantalum
  • Copper, Bronze, Brass
  • Aluminum
  • Carbon steel
  • Stainless steel
  • Beryllium cooper
  • Niobium
  • Precious Metals

Shapes

Rounds, squares, rectangles, and ovals. Other configurations available upon request.

Size Range

  • Outside Diameter 0.020 in. to 6.000 in.
  • Wall Thickness 0.003 in. to 0.500 in.

Lengths

  • Exact cut lengths to 0.025 in. min.
  • Standard mill lengths up to 12 ft.
  • Special lengths (upon review) up to 18 ft.

Tolerances

Precision tolerances are normally one half of the commercial tolerances. Thousands of tool combinations permit us to ensure your most stringent tolerance needs on a drawn-to-size basis.

Quality Specifications

  • MIL-I-45208A Inspection System
  • MIL-STD-45662A Calibration System

General Information

Special processing includes O.D. centerless grinding and I.D. honing. Cutting processes include saw, abrasive, and ECM (no burr) cutting.

*Kovar is a registered trademark of Carpenter Technology

A special tantalum seamless tube stocking program includes popular sizes under 0.500 inch O.D. Contact A.T. Wall for details.

Look to A.T. Wall for rapid delivery of seamless Tantalum tubing and Tantalum alloy tubing to ASTM B521. Niobium and Niobium alloys to ASTM B394 to your specifications.

With in-house engineering, we can stamp and coin tantalum strip to meet your specific design. Rod and sheet is also available. Whether you’re working on a new application or seeking to improve an existing product, A.T. Wall can supply you with your tubing needs.

*Kovar is a registered trademark of Carpenter Technology

Copper beryllium tubing, in Alloy 25 (UNS C17200), is available in sizes from .750” OD and smaller, with wall thickness up to .050”.

 

WAVEGUIDE TUBING

  • Stocked at the company’s major distribution centers located in the USA and the UK
  • European sales agents maintain finished stocks within their country
  • Warehouse-stocking program ensures fast delivery within 48 hours
  • ISO 9001:2015 registered (ISO cert) custom manufacturer
  • Sizes from WR22 to WR650
  • Aluminum, Bronze, Coin Silver, Copper, Invar, and other alloys
  • Rigid Rectangular and Circular
  • Flexible
  • Seamless Flexible

Cold drawn, close tolerance tubing with a smooth ID surface to meet all of your specifications.

When consistent high quality Waveguide Tubing is required … leading defense, aerospace, telecommunications and subcontract fabrication companies around the world rely on the A.T. Wall Company. The company’s manufacturing facility in Warwick, Rhode Island, USA, is a pioneer of advanced Waveguide manufacturing technology and a world leader in precision-drawn Waveguide tubing for high-frequency transmission applications, including space and avionics.

48 Hour Shipments

Finished Waveguide Tubing is stocked at the company’s major distribution centers located in the USA and the UK. Also, several of the company’s European sales agents maintain finished stocks within their country. This warehouse-stocking program ensures fast delivery on all Waveguide Tubing, normally within 48 hours.

Tube Shapes and Size Range

Rigid rectangular, square, and oval waveguide are available in standard, thin, and heavy wall thickness. Rigid rectangular and square also come in ¼ and ½ height if needed. All waveguide is manufactured to applicable military specifications.

Custom Size

Custom sizes can be manufactured to exact specifications. Over the years, more than 1,000 non-standard sizes/configurations have been produced for customers.

Lengths

Normal stock lengths are 12 feet long, depending upon material and tube shape. Shorter or longer lengths to meet exact customer requirements are available upon request. Maximum length is 18 feet.

Quality Assurance

In order to guarantee consistently high quality and reliability, the company provides a Certificate of Compliance with every shipment – ensuring 100% raw material traceability and full chemical certification.

Established quality systems comply with: ISO 9001:2015/ANSI/ASQ 9001

Finished Condition

Most materials are offered in the cold drawn, as drawn, condition. Other special tempering or stress-relieving may be requested, depending on the material type.

Available in sizes WR22 through WR650. Brass, and Phos-Bronze.

A.T. Wall is a supplier of flexible waveguides in brass and phosphorous bronze in sizes WR22 through WR650. Call us for details on electrical performance, power handling, and mechanical specifications. Our knowledge of flexible waveguide products for all applications will save you time in your efforts to maximize performance.

Available in sizes WR10 through WR284. Brass and Phos-Bronze.

A.T. Wall is a supplier of seamless, flexible waveguides in brass and phosphorous bronze in sizes WR10 through WR284. Extra flexible waveguides and double-ridged flexible waveguides are available. Jackets include polysulfide rubber per MIL-S-8802 and silicone rubber per MIL-S-23586. Flanges are available upon request.

PRECIOUS METAL TUBING

Cold drawn seamless Precious Metal Tubing in size ranges from .020” – 6.00”. Materials include Fine Silver, Coin Silver, and Sterling Silver.

  • Tube Shapes
  • Size Range
  • Lengths
  • Tolerances
  • Quality Specifications
  • Pricing**

A.T. Wall provides Precious Metal Tubing in a precision round, square, or rectangle shape. Other configurations are available upon request.

  • Outside Diameter 0.020 in. to 6.000 in.
  • Wall Thickness 0.005 in. to 0.500 in.
  • Exact cut lengths to 0.025 in. minimum
  • Mill lengths up to 18 ft.

Precision tolerances are normally one half of the commercial tolerances. Thousands of tool combinations permit us to ensure meeting your most stringent tolerance needs for Precious Metal Tubing.

  • MIL-I-45208A Inspection System
  • MIL-STD-45662A Calibration System
  • MIL-S-13282 for applicable silver products
  • Silver is sold in U.S. dollars per troy ounce.
**Precious metal is price fixed at date of invoice, based on commodities market.

ONSHORING

Every ATW part is USA made, in a lean manufacturing environment, exactly to spec, no compromise in raw materials or quality systems. This means fewer barriers like time zone challenges and logistics issues for customers in the US, and reliable quality at globally competitive prices for customers around the world.

DESIGN FOR MANUFACTURING

Your metal component should be the very best solution possible. In pursuit of that end, we internalize your environment, look at the big picture of your application, and explore our wide array of technologies for the lowest-cost to you. We anticipate and minimize risk. We shape to you.
WRMIL-W-85MATERIALFREQ. RANGE/GHzIDODWALL
WR3*COPPER
BRONZE
COIN SILVER
220.00 - 325.00.034 x .017.094 x .0770.03
WR4*COPPER
BRONZE
COIN SILVER
170.00 -260.00.043 x .0215.103 x .08150.03
WR5*COPPER
BRONZE
COIN SILVER
140.00 - 220.00.051 x .0255.111 x .08550.03
WR7*COPPER
BRONZE
COIN SILVER
110.00 - 170.00.065 x .0325.125 x .09250.03
WR8*COPPER
BRONZE
COIN SILVER
90.00 - 140.00.080 x .040.140 x .1000.03
WR103-024
---
3-023
COPPER
BRONZE
COIN SILVER
75.00 - 110.00.100 x .050.180 x .1300.04
WR123-021
---
3-020
COPPER
BRONZE
COIN SILVER
60.00 - 90.00.122 x .061.202 x .1410.04
WR153-018
---
3-017
COPPER
BRONZE
COIN SILVER
50.00 - 75.00.148 x .074.228 x .1540.04
WR193-015
---
3-014
COPPER
BRONZE
COIN SILVER
40.00 - 60.00.188 x .094.268 x .1740.04
WR223-011
---
3-010
COPPER
BRONZE
COIN SILVER
33.00 - 50.00.224 x .112.304 x .1920.04
WR283-007
---
3-006
COPPER
BRONZE
COIN SILVER
26.50 - 40.00.280 x .140.360 x .2200.04
WR341-107
1-109
1-108
1-111
COPPER
BRONZE
1100 AL
6061 AL
22.00 - 33.00.340 x .170.420 x .2500.04
WR421-100
1-102
1-106
1-103
1-104
COPPER
BRONZE
1100 AL
6061 AL
18.00 - 26.50.420 x .170.500 x .2500.04
WR511-094
1-096
1-097
1-098
COPPER
BRONZE
1100 AL
6061 AL
15.00 - 22.00.510 x .255.590 x .3350.04
WR621-087
1-089
1-090
1-091
1-104
COPPER
BRONZE
1100 AL
6061 AL
12.40 - 18.00.622 x .311.702 x .3910.04
WR751-081
1-085
1-083
1-084
COPPER
BRONZE
1100 AL
6061 AL
10.00 - 15.00.750 x .375.850 x .4750.05
WR901-075
1-079
1-077
1-078
COPPER
BRONZE
1100 AL
6061 AL
8.20- 12.40.900 x .4001.000 x .5000.05
WR1021-156
1-155
1-158
COPPER
BRONZE
1100 AL
6061 AL
7.00 - 11.001.020 x .5101.148 x .6380.064
WR1121-069
1-073
1-071
1-072
COPPER
BRONZE
1100 AL
6061 AL
7.05 - 10.001.122 x .4971.250 x .6250.064
WR1371-063
1-067
1-065
1-066
COPPER
BRONZE
1100 AL
6061 AL
5.85 - 8.201.372 x .6221.500 x .7500.064
WR1591-057
1-061
1-059
1-060
COPPER
BRONZE
1100 AL
6061 AL
4.90 - 7.051.590 x .7951.718 x .9230.064
WR1871-051
1-055
1-053
1-054
COPPER
BRONZE
1100 AL
6061 AL
3.95 - 5.851.872 x .8722.000 x 1.0000.64
WR2291-045
1-049
1-047
1-048
COPPER
BRONZE
1100 AL
6061 AL
3.30 - 4.902.290 x 1.1452.418 x 1.2730.064
WR2841-039
1-043
1-041
1-042
COPPER
BRONZE
1100 AL
6061 AL
2.60 - 3.952.840 x 1.3403.000 x 1.5000.08
WR3401-033
1-037
1-035
1-036
COPPER
BRONZE
1100 AL
6061 AL
2.130 - 3.003.400 x 1.7003.560 x 1.8600.08
WR4301-027
1-031
1-029
1-030
COPPER
BRONZE
1100 AL
6061 AL
1.70 - 2.604.300 x 2.1504.460 x 2.3100.08