TransQuip USA, Inc. — Hazardous Materials Safety Interpretation

Page 1U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 1200 New Jersey Avenue, SE Washington, DC 20590 Joe Becherer TransQuip USA, Inc. 2301 Creekkedge Ct. Dallas, TX 76210 April 17, 2020 Reference No. 19-0076 Dear Mr. Becherer: This letter is in response to your June 10, 2019, email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to tank car manway nozzles. Specifically, you ask for clarification on the materials of construction requirements for manway nozzles in “general service cars” (i.e., non-pressure tank cars). You note that in accordance with § 179.200-7(b), ASTM A 537 is not a listed material for construction of manway nozzles though, as you note, it has similar properties as ASTM A 516, which is a listed material. We have paraphrased and answered your questions as follows: Q1. You ask whether this is an oversight based on the similarities between the properties of both materials of construction. A1. The answer is no. In accordance with § 179.200-7(b), ASTM A 537 is not a listed carbon steel material of construction for manway nozzles in non-pressure tank cars. Q2. You mention that ASTM A 537 has better elongation and yield strengths than ASTM A 516. You also provide designs for manway nozzles for tank cars constructed of ASTM A 537 and ask whether these may be used for non-pressure tank car specifications. A2. The answer is no. Since ASTM A 537 is not an authorized material under § 179.200- 7(b), a special permit would be required to authorize use of this material. Section 179.4 provides the requirements for changes in specifications for tank cars by AAR Tank Car Committee approval or special permit. To apply for a special permit, please submit an application to the Associate Administrator for Hazardous Materials Safety in conformance with the requirements prescribed in 49 CFR Part 107, Subpart B. You may#

Page 2obtain information on the special permit application process from our website at https://www.phmsa.dot.gov/approvals-and-permits/hazmat/hazardous-materials- approvals-and-permits-overview, or by calling PHMSA’s Approvals and Permits Division at (202) 366-4511. I hope this information is helpful. Please contact us if we can be of further assistance. Sincerely, Dirk Der Kinderen Chief, Standards Development Branch Standards and Rulemaking Division#

Page 3Dodd, Alice (PHMSA) From: Sent: To: Cc: Subject: Attachments: Kelley, Shane (PHMSA) Tuesday, June 11, 2019 12:07 PM Hazmat Interps Majors, Leonard (PHMSA) Fwd: Manway Nozzle Material Question Tank Arrgt 30143 with A519 Fittings Nozzle.pdf; TRQ-2018-0927-10 (CS 12.5 in pro).pdf Team Please log for response and have the drafter assigned work with Leonard - if we can expedite this that would be great. Thanks Shane From: jbecherer@transqui p .corn <jbecherer@transqui p.corn> Sent: Monday, June "10, 2019 5:36 PM To: Majors, Leonard (PHMSA) <leonard.rnajors@dot.gov> Cc: Strouse, LaiTy (FRA) <lany.strouse@dot.gov>; Dorsey, Ken <kdorsey@aar.org>; wcroson <wcroson@transquip.com> Subject: FWD: Re: Manway Nozzle Material Question Importance: High Mr. Majors, I was wondering if I could get your direct interpretation on current Manway Nozzles, and the material they are made of for General Service Cars. In MSRP M-1002, Appendix M, Table M.10.1 (snapshot attached), ASTM A537 is listed as being an 1#

Page 4approved material for Tanks, which would now include any Nozzles, under the new definition of a tank. When looking at 179.100-7 for Pressure Cars, ASTM A537 is an approved material, but in 179.200-7 for General Service Cars ASTM A537 is not listed as an approved material. My question is, do you think this was an oversite for when the definition of a tank changed, and that 179.200-7 should read much like 179.100-7 to include A537 as an approved material? I know there were thousands of General Service cars built with various nozzle materials used, including A537, for Nozzles before the definition changed. So it would seem to me that A537 would still be an acceptable nozzle material today. So with that in mind, would you consider the attached drawing TRQ-2018-0927-10, acceptable by having Item #2 listed as ASTM A537 material, and knowing it will be applied to a General Service car? As an example, if you look at the attached drawing of the 30143 gallon tank, the Nozzle "Neck" used to make Item #4 and Item #6 is made from A519 Seamless Pipe/Tubing back in the day. As you may know, a lot of these cars are being retrofitted to become DOT117R's currently. Leonard, so my big concern is, we have an order going on now where our customer wants a Carbon Steel extension per the TRQ-2018-0927-10 assembly attached, and the material chosen was A537. Should we tell the factory to discontinue applying A537 and start using A516-70, or do you think we are OK to continue with A537? As you see can see from the attached examples, the Nozzle neck/rings were made of A53 and A519 in the past. The properties of A537 is very similar to A516-70 but with better Elongation and Yeild strengths, so I can't see why it wouldn't be acceptable. Mr. Larry Strouse and Mr. Ken Dorsey seem to agree with me, but they had asked me to Consult with you for your direction and/or approval. Thanks in advance for your time with this matter. 2#

Page 5Take Care, Joe Becherer TransQuip USA, Inc. 940-231-0809 jbecherer@transquip.com 3#

Page 6Specificatkms for Tank Cars .. r'\.PPENDIXM 7.4 Reports Mill test reports must be submitted to the A.AR Tank Car Cfommittee with the Certifica Construction. Table M. .. 10 Approved materials for tanks fabricated by welding The grouping of materials by P~:number in this table does not imply that base materia different analyses within a group may be indiscriminately substituted for a material t used in a welding procedure qualification test without consideration of the compatibil: base materials and filler metals from the standpoint of metallurgical properties, posfa; treatment, design and :service 1·equirements, and mechanical properties. Table M.10.1 Carbon steel plateal Minimum Tensile Strength, Minimum Ehn Welded Conditioner 2 in. (50 mm) V Group (Longituc Material Specification P-Mumberbl Number Pili MP.a % Material Group 1 di ASTM A516, Gr_ 70 1 2 70,000 485 20 ASTMA537 1 2 70,000 485 22 AAR TC128, Gr. B er ef 81,000 560 19 4#

Page 7§1 10 I . (a) Steel, p1 1ate: Stee!I plate n1aterials to fabricate tank shell and manway nozzle must comply with o the following specifications with the indicated minimum te strength and e'longation ,in the welded condition. The maximum f able carbon content must be 0.31 percent when the :individual sr cation allows carbon greater than this amount The plates me: clad wjth other approved materials. Specifications AAR TC128, Gr. B ASTM A 3022 , Gr. B ASTM A 5162 Minimum tensUe strength (p.s.i.) welded condiiUon1 Minimum elongation inches (percent) wel1 condition flongrtudh 70,000 ASTM A 5372 , Class 1i 19 20 20 23 1Maximum stresses to be used in calculations. 2These specifications are incorporated by reference (IBR, see§ 171] of this subchi: 5#

Page 8mented tank .. Materials,. (a) Plate material used to fabricate the tank and1 when used, expansion dome or manway nozzle material1 must meet one of the following specifications with the indicated minimum tensile strength and elongation in the welded condition. (b) Carbon steel plate: The maximum allowable carbon content must be 0.31 percent when the individua[ specification allows carbon content greater than this amount The plates may be clad with other approved materials: Minimum elongation in 2 Minimum tensile strength inches (percent} weld Specifications (p.sJ.), welded cond1Uon1 metal (longitudinal) AARTC 428, GL B 81,000 19 ASTrvi A 516" 70,000 20 1Maximum stresses to be used in calculations_ 2This specification is incorporated by reference (IBR, see §171] of this subchapter:L 6#

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Page 128 6 5 D C A 3 2 BEVIS IONS ZONEI REV. I I A I DESCRIPTION INITIAL RELEASE DATE APPROVED I I I 9/27/2018 I JCS 09-27-18 D SECTION A-A SCALE 1 : 6 C I I A~ PIOPt lEl'AtY AND CONFIDENTIAL THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF TRANSQUf' INC .. ANY REPRODUCTION IN PART 011 AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF TRANSQUIP~C. IS PROHIBlfED. NEXT ASSY USED ON APPLICATION 2 ITEM NO. PART NUMBER 1 08867-401 H 2 TRQ-2018-0927-1 UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCHES TOLERANCES: x.xx = :!:.03 x.xxx = :t.015 x.xxxx: ±,005 ,MERPRETGEOMETRIC TOLERANCING PER: 'MATERIAL ANISH DO NOT SCALE DRAWING 3 DRAWN CHECKED ENGAPPR. MFGAPPR. Q.A. COMMENTS : DESCRIPTION QTY. 20" NOZZLE ASSY 5.0 TALL 1 NOZZLE EXT. 7.5" A537 C.S. 1 NAME DATE TransQuip Inc. CRAIG 9/27/18 JC8 9-27-18 20" MANWAY NOZZLE EXTENDED 12.5 OVERALL C.S. SIZE DWG. NO. REV B TRQ-2018-0927-10 A SCALE: 1:8 WEIGHT: SHEET 1 OF 1 A 2#