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Fabrication and Welding

Weld Shop

IMS maintains full time welders, pipefitters, and fabricators on staff.   Welder qualifications are maintained in accordance with NAVSEA S9074-AQ-GIB-010/248, Requirements for Welding and Brazing Procedure and Performance Qualification meet ABS and NAVSEA standards. IMS has several welding procedures that have been approved and serialized by Southwest Regional Maintenance Center and the American Bureau of Ships. Company and individual weld procedures are approved after satisfactory test welds are completed by IMS welders and pass destructive testing by a third party. When necessary IMS can and will certify to meet any customer requirements (such as AIT) to perform work.

IMS provides these precision welding services:

  • MIG, TIG, and wire welding
  • Machine components
  • Frames and bases
  • Metal fabrications
  • Welded structural frames
  • Pipe spools
  • Special art projects
  • Production line metal blanks
  • Tank covers
  • Other ferrous and non-ferrous weldments MASTER LISTING OF WELDING/BRAZING CERTIFICATIONS
  • We manufacture, assemble and install aluminum, steel and stainless steel products including lavatory assemblies, water closets, shower enclosures, partitions, bulkheads, ventilation sections, cabinets, serving lines. Shear up to 1/4″ steel and 3/16″ stainless X 10 foot long material. Brake capacity to 150 tons x 12 foot long
Procedure Interpretation Joints
IMS-WI-002 Silver brazing Procedure Qualification Socket and Face feed
IMS-002

SMAW-MA

Base Material: S-1 to S-1

Filler Material: MIL-7018M

SWRMC

(mild) Carbon Steel to (mild) Carbon Steel

Stick

Plate Groove .125(1/8)” to 1”

Fillet .058 and over

Pipe Groove .125” to unlimited

Fillet .187 (3/16)” and over

Socket .187 to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket fillet welds

IMS-004

SMAW-MA

Base Material: S-1 to S-1

Filler Material: MIL-7018M

SWRMC

(mild) Carbon Steel to (mild) Carbon Steel

Stick

Socket .0872” to .218”

2” or larger Schedule 80

Socket Fillet welds (Pipe)
IMS-005

GTAW-MA

Base Material: S-8 to S-8

Filler Material: MIL-316L

SWRMC

Stainless Steel to Stainless Steel

TIG

Socket .1176 to .294

Schedule 80

Socket Fillet welds (Pipe)
IMS-006

FCAW SA

Base Material: S-1 to S-1

Filler Material: MIL-71T-1-HYC

SWRMC

(mild) Carbon Steel to (mild) Carbon Steel

Flux Core Wire

Plate Groove .187” to 1”

Fillet .058 and over

Pipe Groove .187” to unlimited

Fillet .187 (3/16)” and over

 

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Full penetration welds

IMS-007

GTAW-MA

Base Material: S-1 to S-34

Filler Material: MIL-RN60

SWRMC

(mild) Carbon Steel to Copper Nickel

TIG

Plate Groove .125(1/8)” to .075”

Fillet .058 to unlimited

Pipe Groove .058 to .075”

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

 

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-008

SMAW-MA

Base Material: S-8 to S-1

Filler Material: MIL-RN60

MIL-309L-16

SWRMC

Stainless steel to (mild) Carbon Steel

Stick

Plate Groove .125(1/8)” to .075 (3/4)”

Fillet .125(1/8)” to .075 (3/4)”

Pipe Groove .058 to .075”

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(300 series Austenitic Stainless Steel)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-001

SMAW-MA

Base Material: S-11A2 to S-11A2

Filler Material: MIL-11018M

SWRMC

 

(High Yield) Steel to (High Yield) Steel

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .058” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-002

SMAW-MA

Base Material: S-11A2, S-11A-1, S11C, S11D to S-11A2, S-11A-1, S11C, S11D

Filler Material: MIL-11018M

SWRMC

(High Yield) Steel to (High Yield) Steel

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .0568” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-003

SMAW-MA

Base Material: S-11A2, S-11A-1, S11C, S11D to S-11A2, S-11A-1, S11C, S11D

Filler Material: MIL-11018M

SWRMC

(High Yield) Steel to (mild) Carbon Steel

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .0568” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-004

SMAW-MA

Base Material: S-11A2, S-11A-1, S11C, S11D to S-1

Filler Material: MIL-7018M

SWRMC

(mild) Carbon Steel to (mild) Carbon Steel

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .0568” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-005

SMAW-MA

Base Material: S-11A2, S-11A-1, S11C, S11D to S-2

Filler Material: MIL-7018M

SWRMC

(High Yield) Steel to ASTM-A537/CLASS 2 (Hardened Steel for pressure vessels)

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .0568” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-006

SMAW-MA

Base Material: S-11A2, S-11A-1, S11C, S11D to S-2

Filler Material: MIL-7018M

SWRMC

(mild) Carbon Steel to ASTM-A537/CLASS 2 (Hardened Steel for pressure vessels)

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .0568” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

 

Butt joints- Welded one side with backing, welded from both sides.

(Carbon Steel or Ceramic Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-009 WPS-007

SMAW-MA

Base Material: S-2 to S-2

Filler Material: MIL-7018M

SWRMC

ASTM-A537/CLASS 2 to ASTM-A537/CLASS 2 (Hardened Steel for pressure vessels)

Stick

Plate Groove .125(1/8)” to1.25”

Fillet .058” to unlimited

Pipe Groove .125 to unlimited

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

 

Butt Joints- Welded one side with backing, welded from both sides.

(Carbon Steel Backing)

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-010

GTAW-MA

Base Material: S-34 to S-34

Filler Material: MIL-RN67

SWRMC

Copper Nickel (70/30) to Copper Nickel (70/30)

TIG

Plate Groove .125(1/8)” to .075 (3/4)”

Fillet .125(1/8)” to unlimited

Pipe Groove .058 to .075”

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

 

Butt Joints- Welded one side with backing, welded from both sides.

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds

IMS-010R

GTAW-MA

Base Material: S-34 to S-34

Filler Material: MIL-RN67

SWRMC

Copper Nickel (90/10) to Copper Nickel (90/10)

TIG

Plate Groove .125(1/8)” to .075 (3/4)”

Fillet .125(1/8)” to unlimited

Pipe Groove .058 to .075”

Fillet .058 to unlimited

Socket .187 (3/16) to unlimited

Butt Joints- Welded one side with no backing, welded from one side with backing, welds from both sides.

 

Fillet Joints- Partial penetration, full penetration, socket Fillet welds.

 

Special Joints-Open root

IMS-013

GTAW-MA

Base Material: S-25 to S-25

Filler Material: MIL-R5556

SWRMC

5XXX Aluminum to 5XXX Aluminum

TIG

Plate Groove .058(1/8)” to .116”

Fillet .058” to unlimited

Pipe Groove .058 to .116”

Fillet .058 to unlimited

 

Butt Joints- Welded one side with backing, welded from both sides.

(5000 series Aluminum)

 

Fillet Joints- Partial penetration, full penetration.

IMS-015

GTAW-MA

Base Material: S-34 to S-34

Filler Material: MIL-RN67

SWRMC

 

Copper Nickel (70/30, 90/10) to Copper Nickel (70/30, 90/10)

TIG

Socket .096 to .240”

Socket Fillet welds
IMS-016

GTAW-MA

Base Material: S-34 to S-34

Filler Material: MIL-RN67

SWRMC

 

Copper Nickel (70/30, 90/10) to Copper Nickel (70/30, 90/10)

TIG

Socket .058 to .130”

Socket Fillet welds
IMS-017

FCAW-MA

Base Material: S-8 to S-8

Filler Material: E316LT1-1

SWRMC

Stainless steel to stainless steel

Grades: 304, 304L, 309S, 310S, 316, 316L, 321, 347, 348.

Flux Core

Plate Groove .058(1/8)” to .116”

Fillet .058” to unlimited

Pipe Groove .058 to .116”

Fillet .058 to unlimited

Socket .187 to unlimited

 

Butt Joints- Welded one side with backing, welded from both sides.

(300 series Austenitic Stainless Steel)

Fillet Joints- Partial penetration, full penetration, socket Fillet welds.

 

IMS-019

FCAW-MA

Base Material: S-1 to S-8

Filler Material: E309LT1-4

SWRMC

(mild) Carbon Steel to stainless steel

Grades: 304, 304L, 309S, 310S, 316, 316L, 321, 347, 348.

Flux Core

Plate Groove .058(1/8)” to .75”

Fillet .058” to unlimited

Pipe Groove .058 to .75”

Fillet .058 to unlimited

Socket .187 to unlimited

Butt Joints- Welded one side with backing, welded from both sides.

(300 series Austenitic Stainless Steel)

Fillet Joints- Partial penetration, full penetration, socket Fillet welds.

 

IMS-20-1

FCAW-MA

Base Material: EH36 to EH36

Filler Material: MIL-71T-1C-HY

ABS

ABS steel (mild) Carbon Steel to ABS steel (mild) Carbon Steel

Flux Core

Plate Groove .250” to 1”

Fillet .250” to 1”

 

Butt Joints- Welded one side with backing, welded from both sides.

(Ceramic backing allowed in all positions but overhead) (P-1 Backing in overhead position)

Fillet Joints- Partial penetration, full penetration.

IMS-21

GTAW-MA

Base Material: P-34 to P-34

Filler Material: MIL-RN67 (or commercial equivalent)

ABS

Copper Nickel (90/10) to Copper Nickel (90/10)

TIG

Plate Groove .0625” to .218”

Fillet .0625” to .218”

Pipe Groove .0625” to .218”

Fillet .0625” to .218”

Socket .0625” to .218”

Butt Joints- Welded one side with backing, welded from both sides.

(P-34 group Copper Nickel Backing)

Fillet Joints- Partial penetration, full penetration, socket Fillet welds.

 

IMS-22

SMAW-MA

Base Material: P-1 to P-1

Filler Material: MIL-7018M (or commercial equivalent)

ABS

ABS steel (mild) Carbon Steel to ABS steel (mild) Carbon Steel

Stick

Plate Groove .0625” to .750”

Fillet .0625” to .750”

Pipe Groove .0625” to .750”

Fillet .0625” to .750”

Socket .0625” to .750”

Butt Joints- Welded one side with backing, welded from both sides.

(P-1 Backing)

Fillet Joints- Partial penetration, full penetration, socket Fillet welds.