alt tag

Activities of JWES

II. Certification Activities

1.Certification of welders Classification Certification standard Numbers
Arc welding JIS Z 3801,
WES 8201
Semi-automatic welding JIS Z 3841,
WES 8241
Stainless steel welding JIS Z 3821,
WES 8221
Titanium welding JIS Z 3805,
WES 8205
Plastic welding JIS Z 3831,
WES 8231
Silver alloy brazing JIS Z 3891,
WES 8291
Fillet welding WES 8101 13
Foundation piles WES 8106 343
Petroleum Industry(JPI) JPI-7S-31,
WES 8102
(as of April 2016)
2.Certification of welding coordination personnel Classification Certification standard Numbers
Senior welding engineer JIS Z 3410 /
ISO 14731,
WES 8103
Welding engineer 7,800
Associate welding engineer 24,481
Welding practitioner WES 8107 1,320
(as of March 2016)
3.Certification of robot operator for steel framed building welding Classification Certification standard Numbers
Multi-articular robot WES 8110, 8111 846
(as of February 2016)
4. Certification of micro-soldering (MS) specialists Classification Certification standard Numbers
MS engineer WES 8109 241
MS instructor 585
MS Process control Engineer 55
MS inspector 586
MS operator of 1st class JIS Z 3851 1,690
MS operator of 2nd class 355
(as of April 2016)
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 28
Grade D 60
Inspection Companies Qualified for Architectures and Steel Frames 63
Classification of engineer Certification standard Certified numbers
Inspection coordination personnel WES 8701 470
Senior inspector 1,553
Inspector 1,902
(as of April 2016)
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 2016)
b) Certification of welding and cutting equipment
Manual blowpipes for cutting JIS B6801,
JIS B6805
Manual blowpipes for welding 4
Pressure regulator for welding, cutting and allied processes JIS B6803,
JIS B6805
(as of April 2016)
7. Certification of welders and welding procedures in accordance with law Classification Law and standard Numbers
Certification of welders Electric business law 1,363
commercial nuclear power plants 1,159
Regulatory law of nuclear reactors and radioactive wastes 228
Classification Law and standard Certified numbers
Certification of welding procedures Electric business law 114
commercial nuclear power plants 91
Regulatory law of nuclear reactors and radioactive wastes 42
(as of April 2016)
Certification of suitability of new welding technology Electric business law 1
(as of April 2016)
8. Certification of international welding engineers Classification Diploma earned engineers
IWE(International Welding Engineer) 1,027
IWT(International Welding Technologist) 428
IWS(International Welding Specialist) 646
IWP(International Welding Practitioner) 315
IWIP(International Welding Inspection Personnel) 128
(as of March 2016)