Welding Technology
43 courses · Orange Coast College · 2026-2027 Catalog
Classes: Fall 2026 · Spring 2027
WELD A101 Arc & Oxy-acetylene Welding
- Units
- 4
- Hours
- 36 lecture hours; 108 lab hours
- Transfers to
- CSU
Beginning course in arc and oxy-acetylene welding that covers safety practices, use of equipment, welding in all positions, brazing and cutting operations, and applications to various types of steels.
WELD A102 Weld Testing GMAW 1
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels I, II, III and/or IV in the Gas Metal Arc Welding process. A Welder Qualification Certification will be issued. When completed, may lead to a Certificate of Specialization. Enroll only when ready to test. Fee charged for qualification test.
WELD A103 Weld Test GMAW 2
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of Gas Metal Arc Welding process to the industry standard set by the Inter-Industry Conference on Auto Collision Repair (I-CAR) required tests. A Welder Qualification Certification will be issued. Enroll only when ready to test. Fee charged for qualification test.
WELD A104 Weld Test GTAW
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of level I in Gas Tungsten Arc Welding process. A Welder Qualification Certification will be issued. When completed, may lead to Certificate of Specialization. Enroll only when ready to test. Fee charged for qualification test.
WELD A105 Weld Testing Basic
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels I, II, III or IV in Shielded Metal Arc Welding process. A Welder Qualification Certification will be issued. When completed, may lead to Certificate of Specialization. Enroll only when ready to test. Fee charged for qualification test.
WELD A106 Weld Testing Intermediate
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels V and/or VI in the Shielded Metal Arc Welding process. A Welder Qualification Certification will be issued. When completed, may lead to a Certificate of Specialization. Enroll only when ready to test. Fee charged for qualification test.
WELD A107 Weld Testing Advanced 1
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels VII, VIII, and/or IX in Shielded Metal Arc Welding. Enroll only when ready to test. A Welder Qualification Certification will be issued. Fee charged for qualification test.
WELD A108 Weld Testing Advanced 2
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels I, II, III, and/or IV in Flux Cored Arc Welding. A Welder Qualification Certification will be issued. Enroll only when ready to test. Fee charged for qualification test.
WELD A109 Weld Testing FCAW 1
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels V, VI, VII, VIII in Flux Cored Arc Welding. A Welder Qualification Certification will be issued. When completed, may lead to Certificate of Specialization. Enroll only when ready to test. Fee charged for qualification test.
WELD A110 Weld Testing FCAW 2
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels IX in Flux Cored Arc Welding. A Welder Qualification Certification will be issued. When completed, may lead to Certificate of Specialization. Enroll only when ready to test. Fee charged for qualification test.
WELD A111 Weld Testing Pipe
- Units
- 0.5
- Hours
- 27 lab hours
- Prerequisite
- WELD A100, WELD A101, or concurrent enrollment, or industry experience.
- Transfers to
- CSU
Weld testing for mastery of levels I and/or II in the Pipe Welding process or Gas Tungsten Arc and Shielded Metal Arc Welding processes. A Welder Qualification Certification will be issued. Enroll only when ready to test. Fee charged for qualification test.
WELD A115 Arc and Oxy-acetylene Welding Practice Level 1
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A100 or WELD A101 or concurrent enrollment.
- Transfers to
- CSU
A laboratory class to develop skills in arc and oxy-acetylene welding.
WELD A116 Arc and Oxyacetylene Welding Practice Level 2
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A100 or WELD A101 or concurrent enrollment.
- Transfers to
- CSU
A second-level laboratory class to develop skills in SMAW and oxy-acetylene welding.
WELD A117 Arc and Oxyacetylene Welding Practice Level 3
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A100 or WELD A101 or concurrent enrollment.
- Transfers to
- CSU
A second-level laboratory class to develop skills in SMAW and oxy-acetylene welding.
WELD A118 Arc and Oxyacetylene Welding Practice Level 4
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A100 or WELD A101 or concurrent enrollment.
- Transfers to
- CSU
A level four laboratory class to develop skills in arc, oxy-acetylene, and GMAW welding.
WELD A120 Mathematics & Fabrication Layout for Welders
- Units
- 4
- Hours
- 54 lecture hours; 54 lab hours
- Advisory
- TECH A040.
- Transfers to
- CSU
The study of mathematics to prepare welders for job skills requiring fabrication layout.
WELD A130 Gas Tungsten Arc Welding Level 1
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A100, WELD A101 or WELD A140.
- Transfers to
- CSU
GTAW (gas tungsten arc welding) theory and practice covering aluminum and stainless steels and qualification requirements.
WELD A131 Gas Tungsten Arc Welding Level 2
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Advisory
- WELD A130.
- Transfers to
- CSU
GTAW (gas tungsten arc welding) Level 2 theory and practice covering aluminum and stainless steels and qualification requirements.
WELD A140 Occupational Welding Level 1
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Transfers to
- CSU
A first-level beginning course in arc and oxy-acetylene welding covering safety practices, use of welding, brazing, thermal and mechanical cutting equipment operations on various types of metal.
WELD A141 Occupational Welding Level 2
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Advisory
- WELD A140.
- Transfers to
- CSU
A second-level beginning course in arc and oxy-acetylene welding covering safety practices, use of welding, brazing, thermal and mechanical cutting equipment operations on various types of metal.
WELD A142 Occupational Welding Level 3
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Advisory
- WELD A141.
- Transfers to
- CSU
A third-level beginning course in arc and oxy-acetylene welding covering safety practices, use of welding, brazing, thermal and mechanical cutting equipment operations on various types of metal.
WELD A143 Occupational Welding Level 4
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Advisory
- WELD A142.
- Transfers to
- CSU
A fourth-level beginning course in arc and oxy-acetylene welding covering safety practices, use of welding, brazing, thermal and mechanical cutting equipment operations on various types of metal.
WELD A180 Blueprint Reading
- Units
- 2
- Hours
- 36 lecture hours; 18 lab hours
- Transfers to
- CSU
A basic course in the reading of blueprints associated with the welding fabrication industry.
WELD A201 Advanced Welding
- Units
- 4
- Hours
- 36 lecture hours; 108 lab hours
- Prerequisite
- WELD A100 or WELD A101.
- Transfers to
- CSU
Advanced welding theory and practice, covering thermal cutting, oxy-acetylene welding and welding of ferrous and non-ferrous metals, qualification and certification requirements to Los Angeles City and the American National Standards Institute. May also enroll in WELD A215 for additional laboratory units. Each 54 hours of laboratory time earns one unit. Will be given credit for the laboratory course appropriate for the number of hours worked. Enrollment Limitation: WELD A200; students who complete WELD A201 may not enroll in or receive credit for WELD A200.
WELD A210 Welding Inspection and Testing
- Units
- 4
- Hours
- 54 lecture hours; 54 lab hours
- Transfers to
- CSU
This course covers physical tests, metallographic analysis, visual inspection, non-destructive examination of welds and chemical analysis of metals and alloys.
WELD A211 Gas Metal Arc Welding Training Level 1
- Units
- 1
- Hours
- 9 lecture hours; 27 lab hours
- Prerequisite
- WELD A100, WELD A101 or WELD A140.
- Transfers to
- CSU
This course teaches Gas Metal Arc Welding Theory and practice on ferrous and non-ferrous metals covering welding standards set by the American Welding Society, American National Standards Institute and I-CAR in preparation for qualification and certification requirements. Students may also enroll in WELD A115 or WELD A215 for additional laboratory units. Each 54 hours of laboratory time earns one unit. Students will be given credit for laboratory course appropriate for the number of hours worked.
WELD A212 Gas Metal Arc Welding Training Level 2
- Units
- 1
- Hours
- 9 lecture hours; 27 lab hours
- Prerequisite
- WELD A100, or WELD A101, or WELD A140.
- Advisory
- WELD A211.
- Transfers to
- CSU
This second level course teaches Gas Metal Arc Welding Theory and practice on ferrous and non-ferrous metals covering welding standards set by the American Welding Society, American National Standards Institute and I-CAR in preparation for qualification and certification requirements.
WELD A215 Advanced Arc and Oxy-Acetylene Level 1
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A200 or WELD A201 or WELD A223 or concurrent enrollment.
- Transfers to
- CSU
A laboratory course to develop skills in arc, oxyacetylene, GTAW and GMAW welding.
WELD A216 Arc and Oxyacetylene Lab Level 2
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A200, WELD A201, or WELD A223.
- Advisory
- WELD A215.
- Transfers to
- CSU
A second-level advanced laboratory course to develop skills in oxyacetylene, SMAW, GTAW and GMAW welding.
WELD A217 Arc and Oxyacetylene Lab Level 3
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A200, WELD A201, or WELD A223.
- Advisory
- WELD A216.
- Transfers to
- CSU
A third-level advanced laboratory course to develop skills in oxyacetylene, SMAW, GTAW, GMAW and FCAW welding.
WELD A218 Arc and Oxyacetylene Welding Lab level 4
- Units
- 1-2
- Hours
- 54-108 lab hours
- Prerequisite
- WELD A200 or WELD A201 or WELD A223.
- Advisory
- WELD A217.
- Transfers to
- CSU
A fourth level advanced laboratory course to develop skills in oxyacetylene, SMAW, GTAW, GMAW and FCAW welding.
WELD A220 Welding Specifications and Codes
- Units
- 2
- Hours
- 36 lecture hours
- Transfers to
- CSU
Codes and specifications used by governmental agencies and industry in control of products and production.
WELD A223 Advanced Welding Level 1
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Transfers to
- CSU
An advanced welding course teaching the theory and practice of joining ferrous and non-ferrous metals. Includes certification requirements joint design and use of welding symbols. Lectures include preparation for Los Angeles City testing.
WELD A224 Advanced Welding Level 2
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Advisory
- WELD A223.
- Transfers to
- CSU
A second-level advanced welding course teaching the theory and practice of joining ferrous and non-ferrous metals. Includes certification requirements joint design and use of welding symbols. Lectures include preparation for Los Angeles City testing.
WELD A225 Advanced Welding Level 3
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Advisory
- WELD A224.
- Transfers to
- CSU
A third- level advanced welding course teaching the theory and practice of joining ferrous and non-ferrous metals. Includes certification requirements joint design and use of welding symbols. Lectures include preparation for Los Angeles City testing.
WELD A226 Advanced Welding Level 4
- Units
- 1.5
- Hours
- 18 lecture hours; 36 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Advisory
- WELD A225.
- Transfers to
- CSU
A fourth-level advanced welding course teaching the theory and practice of joining ferrous and non-ferrous metals. Includes certification requirements joint design and use of welding symbols. Lectures include preparation for Los Angeles City testing.
WELD A230 Welding Metallurgy
- Units
- 3
- Hours
- 54 lecture hours; 18 lab hours
- Transfers to
- CSU
Basic metallurgy as applied to welding, metal structures, strength of material. Weld ability of metals, heat treatment, welding procedures, welding stresses and control.
WELD A250 Pipe Welding Level 1
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A200, WELD A201, or WELD A226.
- Transfers to
- CSU
Oxygen-Acetylene, Shielded Metal Arc, Gas metal Arc and Gas Tungsten Arc Welding of pipe for welder qualification to achieve American National Standards (ANSI) certification.
WELD A251 Pipe Welding Level 2
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A200 or WELD A201 or WELD A226.
- Advisory
- WELD A250.
- Transfers to
- CSU
Second-level course for Oxygen-Acetylene, Shielded Metal Arc, Gas Metal Arc and Gas Tungsten Arc Welding for pipe welder qualification to achieve American National Standards (ANSI) certification.
WELD A252 Pipe Welding Level 3
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A200 or WELD A201 or WELD A226.
- Advisory
- WELD A251.
- Transfers to
- CSU
Third-level course for Shielded Metal Arc, Gas Metal Arc Welding for pipe welder qualification to achieve American National Standards (ANSI) certification.
WELD A253 Pipe Welding Level 4
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A200, WELD A201, or WELD A226.
- Advisory
- WELD A252.
- Transfers to
- CSU
Fourth-level course for Shielded Metal Arc, Gas Tungsten Arc Welding for pipe welder qualification to achieve American National Standards (ANSI) certification.
WELD A255 Orbital Welding Level 1
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Transfers to
- CSU
Advanced welding theory and practice covering the process of gas tungsten arc welding using an automatic orbital welding system. Instruction includes safety, equipment use, and certification requirements.
WELD A256 Orbital Welding Level 2
- Units
- 3
- Hours
- 36 lecture hours; 72 lab hours
- Prerequisite
- WELD A100 or WELD A101 or WELD A140.
- Advisory
- WELD A255.
- Transfers to
- CSU
Second-level advanced welding theory and practice covering the process of orbital gas tungsten arc welding, cleanroom procedures, piping blueprints and certification. Instruction includes safety, equipment use, and certification requirements.