Die europäische Druckbehälternorm EN 13445 – was lange währt … ... Section
III. Nuclear power. Section IV. Boiler. Section VIII. Pressure vessel. Section X.
Update on the comparison of selected issues of the ASME Code (Sect. VIII) with EN standards Druckgerätetage, München, June 2011 Dr. Robert Kauer / Dr. Jürgen Deininger
[email protected]
TÜV SÜD Industrie Service GmbH
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Content
Introduction
Updated considerations regarding - Material - Allowable stress values - Design Basics
Summary
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Content
Introduction
Updated considerations regarding - Material - Allowable stress values - Design Basics
Summary
TÜV SÜD Industrie Service GmbH
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Some existing statements
„und es deutet vieles darauf hin, dass sie mit steigender Akzeptanz im EWR auch auf internationalem Parkett eine führende Rolle spielen wird.“
Die europäische Druckbehälternorm EN 13445 – was lange währt … Veröffentlichung Mitteilungen: TÜV SÜD IndustrieDIN Service GmbH Normenausschuss Chemischer Apparatebau (FNCA) im DIN, Feb. 2011
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EC Comparative Study Results
DBF: Design by Formula DBA: Design by Analysis PED: Pressure Equiment Directive
TÜV SÜD Industrie GmbHEquipment Standards, Summary, EC DG Enterprise, Contract No. FIF.20030114, July 2004 Comparative StudyService on Pressure
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Some existing statements pro EN
The fracture toughness concept in the ASME is less conservative
*1) SÜD Comparative onGmbH Pressure Equipment Standards, Summary, EC DG Enterprise, Contract No. FIF.20030114, July 2004 TÜV IndustrieStudy Service
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European Regulation Requirements for Construction and Design - Design
- Construction - Equipment - ...
Complete conversion (other national codes had to be repealed)
Pressure Equipment Directive (PED) 97/23/EG, 1997 (mand. 2002) but old national code still in place like AD-2000, BS 5500, CODAP with some additional consideration also ASME TÜV SÜD Industrie Service GmbH
In-Service Requirements - Service - Inspection - Testing - ...
National requirements had to be extended and adapted
e. g. Germany BetrSichV
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ASME‘s legal standing ■
Legislation at the location of the plant (e.g. Minnesota, New York City, Quebec, Dubai, Sarawak, …)
ASME Boiler & Pressure Vessel Code
ASME Piping Code
Construction Codes Section I Section III Section IV Section VIII Section X Power boiler Nuclear power Boiler Pressure vessel Fiber plastics
Reference Codes
Section II Material
“In-service”-Codes Standards, recommendations ■
Section V NDT
Section VI Boiler ANSI
ASME B31.1 Power piping
ASME B31.3 Process piping
Section IX Welding/Brazing
Section VII Steam boiler ASTM
AWS
Section XI Nuclear power ASNT
API
NACE
Authority at the location of the plant with references to - National Board Inspection Code NBIC - API In-service Codes e.g. API 510
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Some facts around ASME
1915 First ASME Boiler Code (now Sect. I) 1924 First Unfired Pressure Vessel Code (now Sect. VIII) 1963 First Proposal for Nuclear Code (Sect. III) 1968 Alternative Rules for Unfired Pressure Vessels (Sect. VIII Div. 2) 1997 High Pressure Code (Sect. VIII Div. 1) 2007 Re-written Sect. VIII Div. 2
Today 28 books embedded into the US standardization system Continuously new editions published Code Case System
700 technical committees continuously working (consensus process)
Over 3800 Volunteers (~10% International)
Until 1971 certification activities limited to USA and Canada, meanwhile expanded to 75+ countries, accepted in 100+ countries, and translated into Chinese, French, Japanese, Korean, Portuguese, Spanish and Swedish
Strong relation to in-service initiatives and user groups like API, NACE, ….
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ASME Life Cycle Management
Sect. VIII API 620
New Construction Codes and Standards Decommission No
Operate
No
Risk Analysis and Inspection Planning Codes/Standards
Yes
Sucessful ?
PCC-3 API 580 API 510 NBIC
Results
Repair or Replacement per In-Service Repair Codes and Standards
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Yes
Inspect
No
Repair or Replace?
Inspection Findings?
API 579
Results
Yes
Fitness for Service Codes and Standards
PCC-2 NBIC API 510 PTB-2-2009 Guide to Life Cycle Management of Pressure Vessel Integrity
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Content
Introduction
Updated considerations regarding - Material - Allowable stress values - Design Basics
Summary
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Material: Essential Safety Requirements
Source: http://ec.europa.eu/enterprise/sectors/pressure-and-gas/documents/ped/materials/index_en.htm
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PED: Particular Material Appraisal
TÜVSource: SÜD Industrie Service GmbH
http://ec.europa.eu/enterprise/sectors/pressure-and-gas/documents/ped/materials/index_en.htm
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ASME Code: Listed Material, e.g. VIII-1
SA312
UNS (Unified Numbering System) Sxxxxx: Heat and corrosion resistant (stainless) steels TÜV SÜD Industrie Service GmbH
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Some Supplementary Requirements to SA-516
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Summary Material
Both systems (EN and ASME) generally allow the use of each other material
In case material shall be used in both systems dual certified material
To specify the material in a sufficient and economic way, specific comparison between the EN and ASME Specifications is required. Do not rely on general statements.
Material specification shall be mainly driven by the needs for the intended service (good sources are standards like API, NACE, Dechema, …)
Make use of supplementary requirements in the specifications.
Do not over-specify
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Specification example
Service susceptible to Polythonic Acid Stress Corrosion Cracking Stabilizing Heat Treatment and IGC are recommendations from API and NACE standards
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Content
Introduction
Updated considerations regarding - Material - Allowable stress values - Design Basics
Summary
TÜV SÜD Industrie Service GmbH
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Allowable Stresses EN 13445 below the creep range
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Allowable Stresses ASME Sect. II Part D for Sect. VIII, Div. 1
ST SY RT RY SRave SRmin SC Favg
Tensile strength at room temperature Yield strength (0.2%) at room temperature ratio of the average temperature dependent trend curve value of tensile strength to the room temperature tensile strength ratio of the average temperature dependent trend curve value of yield strength to the room temperature yield strength Ave. rupture stress 100,000 hours Min. rupture stress 100,000 hours Ave. stress to cause a creep rate of 0.01%/1,000 hours Below 815°C = 0.67
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Allowable Stresses ASME Sect. II Part D for Sect. VIII, Div. 2
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Updated allowable stress value comparison Plate SA/EN 10028 P295GH and EN 13445 EN 10028 P295GH (1.0481) 180
Allowable Stress [MPa]
160 140 120 100 80 60 40
EN 13445 Allowable (100 - 150 mm)
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Sect. VIII Div. 1 Allowable (100 -150 mm)
max: 538°C max: 500°C
0 0
100
200
300
400
500
600
Temperature °C TÜV SÜD Industrie Service GmbH
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Updated allowable stress value comparison Plate SA-516 Gr. 70 and P295GH (1.0481) 200 180
Allowable Stress [MPa]
160 140 120 100 80 EN 13445 Allowable (< 16 mm)
60
EN 13445 Allowable (60 - 100 mm)
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Sect. VIII Div. 2 Allowable
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Sect. VIII Div. 1 Allowable
max: 538°C
max: 500°C
0 0
100
200
300
400
500
600
Temperature °C TÜV SÜD Industrie Service GmbH
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Updated allowable stress value comparison Plate SA-240 304 and X5CrNi1810 (1.4301) 180 160
Allowable Stress [MPa]
140 120
max: 550°C
100 80 EN 13445 Allowable
60
Sect. VIII Div. 2 Allowable
40
Sect. VIII Div. 1 Allowable 0.9 SY
20
max: 816°C
Sect. VIII Div. 1 Allowable
0 0
100
200
300
400
500
600
700
800
Temperature °C TÜV SÜD Industrie Service GmbH
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Summary Allowable Stresses
Do not rely on general statements. Specifically compare the material at the intended temperature
When using the ASME code always consider the option for using Sect. VIII, Div. 2
When comparing austenitic steels also consider the 90% yield option provided for many materials
The ASME system is much less susceptible to user errors by providing simple tables with the allowable stresses (no need for calculation of the allowable stress)
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Content
Introduction
Updated considerations regarding - Material - Allowable stress values - Design Basics
Summary
TÜV SÜD Industrie Service GmbH
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Design Concepts EN 13445
ASME VIII-1
ASME VIII-2
Design by Formula
√
√ + App. + Codes Cases
√
Design by Analysis
√
No, but U-1
√
Design by Fracture Mechanics
√
No
No
Loads other than Pressure
√
No, but UG-22
√
Fatigue Design
√
No, but UG-22
√
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Allowable Design Cycles
EN 13445
ASME VIII-2
Example 3
33 576
> 5x106
Example 4 Batch
13 100
200x106
Example 4 Stirrer
212 000
> 1011
EN 13445
ASME VIII-2
Example 3 RT+VT
33 576
N/A
Example 3 no NDT
8 600
6 450
Example 4 Batch
13 100
12 500
Example 4 Stirrer
212 000
1 100 000
TÜV SÜD Industrie Service GmbH SNP-PT-007, Comparison of Pressure Vessel Codes ASME Section VIII and EN 13445, Technical, Commercial, and Usage Comparison, Design Fatigue Life Comparison
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Content
Introduction
Updated considerations regarding - Material - Allowable stress values - Design Basics
Summary
TÜV SÜD Industrie Service GmbH
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ASME Cost comparison (excerpt)
Cost
Costs in a Clean Fuel Project
TÜV SÜD Industrie Service GmbH SNP-PT-007, Comparison of Pressure Vessel Codes ASME Section VIII and EN 13445, Technical, Commercial, and Usage Comparison, Design Fatigue Life Comparison
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The ASME answer
%
ASME VIII-1 ASME VIII-2 Others EN 13445
Total Number of Boilers and PV registered with the National Board 1.495.632
TÜV SÜD Industrie Service GmbH
1.563.665
1600000 1400000 1200000 1000000 800000 600000 400000 200000 0
1.357.379
2006
Comparison of Pressure Vessel Codes ASME Sect. VIII and EN 13445, Technical, Commercial, and Usage Comparision, Design Fatigue Life Comparison STP-PT-007, Dec. 2006
1.572.626
2007
2008
2009
1.211.711
2010
Overall number of registrations on file at the end of 2010 was 45.713.776 National Board Bulletin, Fall 2010 31
Downstream new projects (in $ bn)
EIC Database TÜV SÜD Industrie Service GmbH
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ASME Stampholders
[3496] [3467]
[1023] [1004]
[14] [9]
[82] [77] [1388] [1087]
[28] [116] [20] [ ] - 04/2011 [ ] - 07/2010 TÜV SÜD Industrie Service GmbH
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