Views
4 years ago

SPRING 2018

  • Text
  • Fastener
  • Fasteners
  • Products
  • Manufacturing
  • Screws
  • Distributor
  • Founded
  • Distributors
  • Stainless
  • Bolts
Distributor's Link Magazine Spring 2018 / Vol 41 No2

26 THE DISTRIBUTOR’S

26 THE DISTRIBUTOR’S LINK Carmen Vertullo Lead Trainer, Fastener Training Institute® FASTENER TRAINING INSTITUTE ® 5318 East 2nd Street #325, Long Beach, CA 90803 TEL 562-473-5373 FAX 661-449-3232 EMAIL info@fastenertraining.org WEB www.fastenertraining.org HYDROGEN EMBRITTLEMENT IN FASTENERS CASE STUDIES - PART 2 This is the second in our series of articles on case studies of hydrogen embrittlement in fasteners. If you are not familiar with hydrogen embrittlement I recommend that you read the previous issue’s case study and three other articles I have written on the subject for the Distributor’s Link Magazine. In our previous case study we had a situation in which there was no real hydrogen embrittlement in the product, but because of lack of process control and specification knowledge the supplier and the end user suffered some pain. It was not significant and the outcome was positive for all involved. This current case also involves lack of specification understanding, however it involves real hydrogen embrittlement where the consequences were severe. It serves as an excellent illustration of why end users and suppliers should have a thorough understanding of the fastener and coating specifications they are working with. In the end, we will use this study to help you understand two important plating specifications and how to make informed decisions regarding their use. CASE NUMBER 2: Subsea Oil Rig Bolting and Zinc Plating Specifications Over the past 5 years or so there have been a series of bolting failures in subsea oil drilling equipment. The investigations, repair of the failures, bolting replacement worldwide and the associated drilling rig downtime cost many millions of dollars, not to mention the environmental impact, which fortunately has been minimal. BSEE, the Bureau of Safety and Environmental Enforcement TECHNICAL ARTICLE and API, the American Petroleum Institute, along with other organizations have been at the front of these investigations. Hydrogen embrittlement was identified as the cause of failure in some of these cases. While experts agree that hydrogen embrittlement was indeed involved, the type of hydrogen embrittlement and the root cause of these failures is still a subject of controversy. When the root cause of any failure is elusive or not properly identified, applying an effective preventive action is not possible. In at least one case of this subsea bolting, the hydrogen embrittlement was attributed to the fact that the bolts were zinc plated and not properly baked according to the plating specification used, ASTM B633. When hydrogen embrittlement occurs under these conditions it is called internal hydrogen embrittlement. Baking the parts for some amount of time, a few hours to 24 hours or more, is the prescribed method to drive out the hydrogen and prevent hydrogen embrittlement from occurring. Many experts, reports, presentations and articles have indicated that improper baking was the cause of the hydrogen embrittlement in these cases. Other experts, more familiar with ASTM specifications for both fasteners, plating, and hydrogen embrittlement, could easily tell that improper baking was not the cause of this hydrogen embrittlement failure. Those experts are Joe Greenslade, the past Director of Engineering Technology of the Industrial Fasteners Institute (IFI), and Salim Brahimi, a renowned hydrogen embrittlement researcher and the current IFI Director of Engineering Technology. CONTINUED ON PAGE 110

  • Page 6 and 7: in thespring 2018 issue of 6 DISTRI
  • Page 8: 6 THE DISTRIBUTOR’S LINK Rotor Cl
  • Page 12: 10 THE DISTRIBUTOR’S LINK Laurenc
  • Page 16: 14 THE DISTRIBUTOR’S LINK Richard
  • Page 30: 28 THE DISTRIBUTOR’S LINK FASTENE
  • Page 36: 34 THE DISTRIBUTOR’S LINK Anthony
  • Page 40 and 41: 38 THE DISTRIBUTOR’S LINK PENN EN
  • Page 42: 40 THE DISTRIBUTOR’S LINK Jim Tru
  • Page 46 and 47: 44 THE DISTRIBUTOR’S LINK Robert
  • Page 48 and 49: 46 THE DISTRIBUTOR’S LINK GLOBALF
  • Page 50 and 51: 48 THE DISTRIBUTOR’S LINK EARNEST
  • Page 54: 50 THE DISTRIBUTOR’S LINK ROTOR C
  • Page 57 and 58: THE DISTRIBUTOR’S LINK 53
  • Page 60: 56 THE DISTRIBUTOR’S LINK VOGELSA
  • Page 63 and 64: THE DISTRIBUTOR’S LINK 59
  • Page 65 and 66: THE DISTRIBUTOR’S LINK 61 www.Ame
  • Page 68 and 69: 64 THE DISTRIBUTOR’S LINK MID-WES
  • Page 70: 66 THE DISTRIBUTOR’S LINK John R.
  • Page 74: 70 THE DISTRIBUTOR’S LINK CONTINE
  • Page 77 and 78:

    THE DISTRIBUTOR’S LINK 73

  • Page 80:

    76 THE DISTRIBUTOR’S LINK ND INDU

  • Page 83 and 84:

    SEMS AND SPECIALS INC THE DISTRIBUT

  • Page 85 and 86:

    THE DISTRIBUTOR’S LINK 81 NINGBO

  • Page 88:

    84 THE DISTRIBUTOR’S LINK COMPUTE

  • Page 92 and 93:

    88 THE DISTRIBUTOR’S LINK STRUT &

  • Page 94 and 95:

    90 THE DISTRIBUTOR’S LINK SOUTHWE

  • Page 96 and 97:

    92 THE DISTRIBUTOR’S LINK BTM MAN

  • Page 98:

    94 THE DISTRIBUTOR’S LINK Solon M

  • Page 104 and 105:

    100 THE DISTRIBUTOR’S LINK BENGT

  • Page 106 and 107:

    102 THE DISTRIBUTOR’S LINK LAUREN

  • Page 108 and 109:

    104 THE DISTRIBUTOR’S LINK GUY AV

  • Page 110:

    106 THE DISTRIBUTOR’S LINK ICHARD

  • Page 113 and 114:

    THE DISTRIBUTOR’S LINK 109 Hodell

  • Page 115 and 116:

    MWFA HOLIDAY PARTY ADDISON, IL - DE

  • Page 118 and 119:

    114 THE DISTRIBUTOR’S LINK COMPUT

  • Page 120 and 121:

    116 THE DISTRIBUTOR’S LINK ANTHON

  • Page 122 and 123:

    fastenerlinks THE DEFINITIVE WEB DI

  • Page 124 and 125:

    fastenerlinks BRINGING YOU THE FAST

  • Page 126 and 127:

    fastenerlinks BRINGING YOU THE FAST

  • Page 128:

    124 THE DISTRIBUTOR’S LINK STAFDA

  • Page 131 and 132:

    THE DISTRIBUTOR’S LINK 127 BRIGHT

  • Page 133 and 134:

    THE DISTRIBUTOR’S LINK 129 DDI Sy

  • Page 135:

    THE DISTRIBUTOR’S LINK 131

  • Page 139 and 140:

    THE DISTRIBUTOR’S LINK 135 WOMEN

  • Page 142 and 143:

    138 THE DISTRIBUTOR’S LINK VOGELS

  • Page 144 and 145:

    140 THE DISTRIBUTOR’S LINK ROMAN

  • Page 146:

    142 THE DISTRIBUTOR’S LINK JOHN G

  • Page 149 and 150:

    THE DISTRIBUTOR’S LINK 145 Sherex

  • Page 151 and 152:

    THE DISTRIBUTOR’S LINK 147 NATION

  • Page 153 and 154:

    THE DISTRIBUTOR’S LINK 149 Wrough

  • Page 156 and 157:

    152 THE DISTRIBUTOR’S LINK RICHAR

  • Page 158 and 159:

    154 THE DISTRIBUTOR’S LINK CARMEN

  • Page 160 and 161:

    156 THE DISTRIBUTOR’S LINK BTM Ma

  • Page 162:

    158 THE DISTRIBUTOR’S LINK ROBERT

  • Page 165 and 166:

    THE DISTRIBUTOR’S LINK 161 J.W. W

  • Page 168 and 169:

    164 THE DISTRIBUTOR’S LINK LAUREN

  • Page 170 and 171:

    166 THE DISTRIBUTOR’S LINK RICHAR

  • Page 172:

    168 THE DISTRIBUTOR’S LINK METROP

  • Page 175 and 176:

    THE DISTRIBUTOR’S LINK 171 The NE

  • Page 178 and 179:

    174 THE DISTRIBUTOR’S LINK MID-AT

  • Page 180:

    176 THE DISTRIBUTOR’S LINK LAUREN

  • Page 183 and 184:

    THE DISTRIBUTOR’S LINK 179 J.W. W

  • Page 186 and 187:

    182 THE DISTRIBUTOR’S LINK RICHAR

  • Page 188 and 189:

    184 THE DISTRIBUTOR’S LINK Würth

  • Page 190:

    186 THE DISTRIBUTOR’S LINK As a p

  • Page 194:

    MWFA HOLIDAY PARTY ADDISON, IL - DE

  • Page 198:

    advertisers index # 3Q, INC. 60 Spl

  • Page 202:

    advertisers index I INNOVATIVE COMP

SHARE A PAGE FROM THIS MAGAZINE

OPTION 1: Click on the share tab above, or OPTION 2: Click on the icon (far right of toolbar) and then click on the icon (top right of the page).

Copyright © Distributor's Link, Inc. All Rights Reserved | Privacy Policy