1.Certification of welders |
Classification |
Certification standard |
Numbers |
Arc welding |
JIS Z 3801, WES 8201 |
80,689 |
Semi-automatic welding |
JIS Z 3841, WES 8241 |
95,039 |
Stainless steel welding |
JIS Z 3821, WES 8221 |
50,998 |
Titanium welding |
JIS Z 3805, WES 8205 |
722 |
Plastic welding |
JIS Z 3831, WES 8231 |
663 |
Silver alloy brazing |
JIS Z 3891, WES 8291 |
1,282 |
Fillet welding |
WES 8101 |
13 |
Foundation piles |
WES 8106 |
367 |
Petroleum Industry(JPI) |
JPI-7S-31, WES 8102 |
2,141 |
(as of April 2018) |
2.Certification of welding coordination personnel |
Classification |
Certification standard |
Numbers |
Senior welding engineer |
JIS Z 3410 / ISO 14731, WES 8103 |
1,296 |
Welding engineer |
8,231 |
Associate welding engineer |
25,821 |
Welding practitioner |
WES 8107 |
1,406 |
(as of March 2018) |
3.Certification of robot operator for steel framed building welding |
Classification |
Certification standard |
Numbers |
Multi-articular robot |
WES 8110, 8111 |
1,079 |
(as of February 2018) |
4. Certification of micro-soldering (MS) specialists |
Classification |
Certification standard |
Numbers |
MS engineer |
WES 8109 |
215 |
MS instructor |
583 |
MS Process control Engineer |
54 |
MS Assembly Process Engineer |
9 |
MS inspector |
611 |
MS operator of 1st class |
JIS Z 3851 |
1,690 |
MS operator of 2nd class |
348 |
(as of April 2018) |
5. Certification of technical grade of corporations for non-destructive inspection and inspection personnel |
Technical grade of corporation |
Certification standard |
Numbers |
Grade A |
WES 8701 |
17 |
Grade B |
9 |
Grade C |
31 |
Grade D |
60 |
Inspection Companies Qualified for Architectures and Steel Frames |
65 |
Classification of engineer |
Certification standard |
Certified numbers |
Inspection coordination personnel |
WES 8701 |
492 |
Senior inspector |
1,563 |
Inspector |
1,924 |
(as of April 2018) |
6. Certification of products |
Classification of enterprise |
Certification standard |
Certified numbers |
a) Steel products |
Weldable high strength steel plates |
WES 3001 |
68 |
Evaluation criterion of rolled steels for low temperature application |
WES 3003 |
72 |
Supplementary requirements High strength steel plates with low susceptibility to cold cracking |
WES 3009 |
21 |
(as of April 2018) |
b) Certification of welding and cutting equipment |
Manual blowpipes for cutting |
JIS B6801, JIS B6805 |
52 |
Manual blowpipes for welding |
3 |
Pressure regulator for welding, cutting and allied processes |
JIS B6803, JIS B6805 |
116 |
(as of April 2018) |
7. Certification of welders and welding procedures in accordance with law |
Classification |
Law and standard |
Numbers |
Certification of welders |
Electric business law |
1,413 (new) |
9,127 (renewal) |
commercial nuclear power plants |
1,315 (new) |
1,576 (renewal) |
Regulatory law of nuclear reactors and radioactive wastes |
250 (new) |
Classification |
Law and standard |
Certified numbers |
Certification of welding procedures |
Electric business law |
114 |
commercial nuclear power plants |
101 |
Regulatory law of nuclear reactors and radioactive wastes |
42 |
(as of April 2018) |
Certification of suitability of new welding technology |
Electric business law |
1 |
(as of April 2018) |
8. Certification of international welding engineers |
Classification |
Diploma earned engineers |
IWE(International Welding Engineer) |
1,073 |
IWT(International Welding Technologist) |
430 |
IWS(International Welding Specialist) |
660 |
IWP(International Welding Practitioner) |
315 |
IWIP(International Welding Inspection Personnel) |
128 |
(as of March 2018) |