NB/T 47003.1-2022 (NB/T47003.1-2022, NBT 47003.1-2022, NBT47003.1-2022) & related versions
NB/T 47003.1-2022: PDF in English (NBT 47003.1-2022)
ICS 23.020.10
PROFESSIONAL STANDARD NB
OF THE PEOPLE'S REPUBLIC OF CHINA
J74
NB/T 47003.1-2009 (JB/T 4735.1)
Partially Replace JB/T 4735-1997
Steel Welded Atmospheric Pressure Vessels
ISSUED ON. DECEMBER 1, 2009
IMPLEMENTED ON. MAY 1, 2010
Issued by National Energy Administration
Contents
1 Scope ... 1
2 Normative References ... 1
3 Terms and Definitions ... 5
4 General Provisions ... 6
5 Materials ... 13
6 Basic Structural Components ... 24
7 Vertical Cylindrical Vessels ... 54
8 Rectangular Vessels ... 72
9 Manufacturing, Inspection and Acceptance ... 93
Appendix A (Informative) Steels Performances at Different Temperatures ... 106
Foreword
NB/T 4 7003 consists of 2 parts.
--Part 1. Steel Welded Atmospheric Pressure Vessels;
--Pa11 2. Silos for Solid Materials .
This part is Pa11 l ofNB/T 47003.
There are significant differences between this Pait and JB/T 4 73 5-1997 as follows .
--After the safety coefficients of carbon steel, low alloy steel and ferritic high alloy
steel are revised, the safety coefficient of the lower limit value of the steel standard tensile
strength is reduced from 2.5 to 2.4;
--As for Chapter 4, definitions for the minimum thickness and calculated thickness
are revised; pneumatic test is added into the pressure test (test pressure is changed from 1.15
time to 1.10 time); the stress check in the pressure test is revised;
--As for Chapter 5, according to the changes of the steel standards, the steel grade,
grade of steel for the stud and nut, allowable stress of the section steel and welding materials
shall be increased correspondingly;
-Chapter 5 of the previous standard "internal pressure cylinder", Chapter 6 "external
pressure cylinder and external pressure sphere", Chapter 7 "head", Chapter 8 "flat cover",
Chapter 9 "opening and opening reinforcement" and Chapter 10 "flange" are combined to
form Chapter 6 of this Part "basic structural components";
--As for Chapter 6 "basic structural components", some formulae in "flat cover",
"opening and opening reinforcement" and "flange" are revised; the scope and diameter of
the opening are extended;
--As for Chapter 7 "ve11ical cylindrical vessel", some formulae are revised;
--As for Chapter 8 "rectangular vessel", some formulae are revised;
--As for Chapter 9, rectangular vessel, pneumatic test and methods are added. The
medium temperature in the pneumatic test shall be revised to "no less than 5 °C";
--The following contents of the previous standard are deleted including Chapter 12
"Vertical cylindrical tank", Chapter 14 "Cylindrical silos", Appendix A "Additional regulations
for the materials'', Appendix C "Aseismic design of the vertical cylindrical tank", Appendix
D "Design of the ribbed vault'', Appendix E "Basic requirements for the foundation design
of the vertical cylindrical tank' ', Appendix F "Preparation and inspection of the storage tank
tee joints and welded comer joints'', Appendix G "Detailed drawing of structural nodes" as
well as Appendix H "Opening and opening reinforcement of flush cleaning openings".
Appendix A of this Pa11 is informative.
This Part is proposed and under the jurisdiction of National Technical Committee on
Steel Welded Atmospheric Pressure Vessels
1 Scope
1.1 This Part specifies the design, manufacture, inspection and acceptance requirements of
steel welded atmospheric pressure vessels (hereinafter referred to as vessels).
Atmospheric pressure horizontal vessel can be designed and calculated according to the
relevant requirements of "Steel · Horizontal Vessels on Saddle Suppo11s" JB/T 4 731 and its
allowable stress values may be adopted according to 4.6 of this Pa11.
1.2 Vessels applicable to this part.
a) Cylindrical vessel . design pressure is between -0.02MPa and O. lMPa; design
temperature shall be determined according to the allowable service temperature of the steels;
b) Rectangular vessel. design pressure is zero; design temperature shall be dete1mined
according to the allowable service temperature of the steels .
1.3 This standard is not applicable to the following various vessels.
a) Directly-fired vessels;
b) Nuclear-radiated vessels;
c) Vessels storing extreme and high toxic medium;
d) Directly-buried vessels;
e) Liftable gasholder;
f) Frequently-transported vessels;
g) Silos;
h) Ve11ical cylindrical vessel whose geometrical capacity is greater than 1000m3;
i) Tower vessel whose height is greater than 1 Om and the slenderness ratio is greater
than 5.
2 Normative References
The following referenced documents are indispensable for the application of this
document. For the dated normative references, only the dated editions are applicable to this
document. For the undated references, the latest editions of the normative documents
(including all the amendments) are applicable to this document.
GB 150-1998 "Steel Pressure Vessels"
GB/T 699-1999 "Quality Carbon Structural Steels"
GB/T 700-2006 "Carbon Structural Steels" (GB/T 700-2006, ISO 630. 1995, NEQ)
GB/T 4334-2008 "Corrosion of Metals and Alloys-test Methods for Intergranular
Corrosion of Stainless Steels (GB/T 4334-2008, ISO 3651-1.1998, ISO 3651-2.1998, MOD)
GB/T 511 7 - 1995 "Carbon Steel Covered Electrodes" (GB/T 5117 -1995, ANSI/
AWSA5.1.1991, EQV)
GB/T 5118-1995 "Low Alloy Steel Covered Electrodes" (GB/T 5118-1995, ANSI/
AWSA5.5.1981 , NEQ)
GB/T 5293 -1999 "Carbon Steel Electrodes and Fluxes for Submerged Arc Welding"
(GB/T 5293-1999, ANSI I/AWSA5 .l 7. 1989, EQV)
GB/T 5779 .1- 2000 "Fasteners- Surface Discontinuities-Bolts, Screws and Studs for
General Requirements" (GB/T 5779.1-2000, ISO 6157-1.1988, IDT)
GB/T 5779.2-2000 ''Fasters-Surface Discontinuities- Nuts" (GB/T 5779.2-2000,
ISO 6157-2. 1995, IDT)
GB 64 79 - 2000 "Seamless Steel Tubes for High-pressure for Chemical Fertilizer
Equipments" [GB 6479-2000, ISO 9329-2. 1997(E), NEQ]
GB/T 8162-2008 "Seamless Steel Tubes for Structural Purposes" (GB/T 8162-2008,
EN 10297-1 .2003 , NEQ)
GB/T 8163-2008 "Seamless Steel Tubes for Liquid Service" (GB/T 8163-2008, EN
10216-1 .2004, NEQ)
GB/T 8165-2008 "Stainless Steel Clad Plates Sheets and Strips"
GB/T 9019-2001 "Nominal Diameter of Pressure Vessels"
GB/T 12470-2003 "Low Alloy Steel Electrodes and Fluxes for Submerged Arc Welding"
GB 13296-2007 "Seamless Stainless Steel Tubes for Boiler and Heat Exchanger" (GB
13296-2007, ASMESA-213 /213M.2001 , NEQ)
GB/T 14957-1994 "Steel Wires for Melt Welding"
GB/T 14976-2002 "Stainless Steel Seamless Tubes for Fluid Transport" (GB/T 14976
-2002, ASTM A269.2000, NEQ)
GB 50009-2001 "Load Code for the Design of Building Structures"
GB 50011-2001 "Code for Seismic Design of Buildings"
GB 50017- 2003 "Code for Design of Steel Structures"
GB 50236-1998 "Code for Construction and Acceptance of Field Equipment, Industrial
Pipe Welding Engineering"
JB/T 4701 "A-type Socket-weld Flange"
JB/T 4702 "B-type Socket-weld Flange"
JB/T 4703 "Welding Neck Flange" \
JB 4708 "Welding Procedure Qualification for Steel Pressure Vessels"
JB/T 4709 "Welding Specification for Steel Pressure Vessels"
JB/T 4 710 "Steel Ve11ical Vessels Supported by Ski11"
JB/T 4 711 "Coating and Packing for Pressure Vessels Transport"
JB/T 4 712.1 "Vessel Supp011s-Pai1 1. Saddle Support"
JB/T 4712 .2 "Vessel Suppo11s-Paii 2. Leg Support"
JB/T 4712 .3 "Vessel Suppo1ts-Part 3. Lug Support"
JB/T 4712.4 "Vessel Suppo11s-Part 4. Bracket Suppo1t"
JB/T 4 726 "Carbon and Low-alloy Steel Forgings for Pressure Vessels"
JB/T 4728 "Stainless Steel Forgings for Pressure Vessels"
JB/T 4730.2 "Nondestructive Testing of Pressure Equipments-Part 2. Radiographic
Testing"
JB/T 4730.3 "Nondestructive Testing of Pressure Equipments-Part 3. Ultrasonic
Testing"
JB/T 4 73 1 " Steel Horizontal Vessels on Saddle Suppo11s"
NB 4744 "Mechanical Prope1iy Tests of Product Welded Test Coupons for Steel
Pressure Vessels"
NB/T 4 746 "Formed Heads for Steel Pressure Vessels"
NB/T 4747 "Technical Pennission of Steel Welding Rod Purchasing for Pressure Vessels"
NB/T 4 7002.1 "Explosion Welded Clad Plate for Pressure Vessels-Part 1. Stainless
Steel-steel Clad Plate"
NB/T 47002 .2 "Explosion Welded Clad Plate for Pressure Vessels-Part 2. Nickel-steel
Clad Plate"
NB/T 47002.3 "Explosion Welded Clad Plate for Pressure Vessels-Part 3. titanium-
steel clad Plate"
NB/T 47002.4 "Explosion Welded Clad Plate for Pressure Vessels- Part 4. Copper-steel
Clad Plate"
SY 5036-1983 "Spiral Submerged Arc Arc-welded Steel Tubes for Pressure Fluid
Service"
SY/T 5037-2000 " Spiral Submerged Arc-welded Steel Pipe for Pipelines for Low
Pressure Field Fluid Service"
SY/T 5038-1992 " Spiral Ratio-frequency Welding Steel Tubes for Pipelines for
Ordinary Fluid"
3.6 Design Temperature
Design temperature is the set component metal temperature under the normal operating
conditions . The des ign temperature must not be less than the maximum metal temperature of
the component metal under operating conditions. As for the metal temperature below 0 °C ,
the design temperature must not be higher than the minimum temperature of the component
metal.
The vessel design temperature (namely the design temperature marked on the vessel
nameplate) means the ...
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| Standard ID | NB/T 47003.1-2022 (NB/T47003.1-2022) | | Description (Translated English) | (Atmospheric pressure vessels - Part 1: Welded steel atmospheric pressure vessels) | | Sector / Industry | Energy Industry Standard (Recommended) | | Word Count Estimation | 118,125 | | Date of Issue | 2022-11-04 | | Date of Implementation | 2023-05-04 |
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