GB/T 16507.2-2022 English PDF (GBT16507.2-2022)

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GB/T 16507.2-2022: Water-tube boilers - Part 2: Materials
GB/T 16507.2-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.060.30
CCS J 98
Replacing GB/T 16507.2-2013
Water-tube boilers - Part 2: Materials
ISSUED ON: MARCH 09, 2022
IMPLEMENTED ON: OCTOBER 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 7
1 Scope ... 9
2 Normative references ... 9
3 Terms and definitions ... 11
4 Basic requirements ... 12
5 Design material ... 13
6 Materials for pressure elements ... 15
7 Materials for stress members ... 27
8 Materials for steel structures ... 31
9 Welding materials ... 32
Annex A (normative) Supplementary requirements for materials ... 33
Annex B (informative) Elastic modulus, thermal conductivity and expansion coefficient
of commonly used materials ... 35
Annex C (normative) Metallographic inspection of steel forgings ... 38
Bibliography ... 40
Water-tube boilers - Part 2: Materials
1 Scope
This document specifies the principles and requirements for the selection of materials
for pressure and non-pressure elements of water-tube boilers, stress components, the
application range (temperature and pressure) and allowable stress of materials, as well
as the general requirements for boiler steel structures and welding materials.
This document is applicable to the selection and use of materials for pressure elements
and non-pressure elements, stress components, boiler steel structures and welding
materials of water-tube boilers defined in GB/T 16507.1
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 150.2, Pressure vessels - Part 2: Materials
GB/T 699, Quality carbon structure steels
GB/T 700, Auto immediate
GB/T 711, Hot-rolled quality carbon structural steel plates sheets and strips
GB/T 713, Steel plates for boilers and pressure vessels
GB/T 983, Covered electrodes for manual metal arc welding of stainless and heat-
resisting steels
GB/T 984, Hard facing electrodes for shielded metal arc welding
GB/T 1220, Stainless steel rod
GB/T 1221, Heat-resistant steel bars
GB/T 1348, Spheroidal graphite iron castings
GB/T 1591, High strength low alloy structural steels
GB/T 2900.48, Electrotechnical terminology of boilers
GB/T 3077, Alloy structure steels
GB/T 3087, Seamless steel tubes and pipes for low and medium pressure boiler
GB/T 3091, Welded steel pipes for low pressure liquid delivery
GB/T 3274, Hot-rolled plates, sheets and strips of carbon structural steels and high
strength low alloy structural steels
GB/T 3280, Cold rolled stainless steel plate, sheet and strip
GB/T 4237, Hot rolled stainless steel plate, sheet and strip
GB/T 5117, Covered electrodes for manual metal arc welding of non-alloy and fine
grain steels
GB/T 5118, Covered electrodes for manual metal arc welding of creep-resisting
steels
GB/T 5293, Solid wire electrodes, tubular cored electrodes and electrode/flux
combinations for submerged arc welding of nonalloy and fine grain steels
GB/T 5310, Seamless steel tubes and pipes for high pressure boiler
GB/T 5313, Steel plate with through-thickness characteristics
GB/T 6394, Determination of estimating the average grain size of metal
GB/T 6803, Test method for drop-weight test to determine nil-ductility transition
temperature of ferritic steels
GB/T 8110, Wire electrodes and weld deposits for gas shielded metal arc welding of
non-alloy and fine grain steels
GB/T 8163, Seamless steel pipes for liquid service
GB/T 9439, Grey iron castings
GB/T 9440, Malleable iron castings
GB/T 9711, Petroleum and natural gas industries - Steel pipe for pipeline
transportation systems
GB/T 10045, Tubular cored electrodes for non-alloy and fine grain steels
GB/T 10561, Steel - Determination of content of nonmetallic inclusions -
Micrographic method using standards diagrams
GB/T 12470, Solid wire electrodes, tubular cored electrodes and electrode/flux
4 Basic requirements
4.1 The steel of the pressure element and the load-bearing member welded with the
pressure element shall be killed steel.
4.2 Elements not specified in the material standards shall not be added to the material
without the consent of the boiler manufacturer.
4.3 Boiler manufacturers shall conduct acceptance inspection for boiler materials
according to the items specified in JB/T 3375. They can only be used after passing the
acceptance inspection.
4.4 Materials that meet one of the following conditions may not be subject to physical
and chemical and corresponding non-destructive testing re-inspection during
acceptance:
a) The acceptance personnel shall conduct acceptance inspection at the material
manufacturer according to the procurement technical requirements. Witness
signature confirmation on the inspection report or relevant quality certification
documents;
b) For carbon steel and carbon-manganese steel materials for boilers with rated
working pressure less than 3.8MPa, the identification of the physical object is
clear and complete. It has a material quality certificate that meets the requirements
of 4.6. The quality certificate is consistent with the actual object.
4.5 In the boiler manufacturing process, if there is a process of thermal processing with
a heating temperature exceeding the phase transition point or the overall heat treatment
of the component, the raw material of the component does not require the material
manufacturer to guarantee the heat treatment state. However, it shall be clearly
stipulated in the ordering technical conditions.
4.6 Manufacturers of special steel plates, steel pipes and forgings for boilers shall ensure
the quality of materials and provide material quality certificates. The material quality
certificate shall meet the following requirements:
a) The material manufacturer shall provide the user with the original quality
certificate in accordance with the corresponding material standards and the
provisions of the order contract. The content of the material quality certificate
shall be complete. It shall be printed with traceable information logo. It shall be
stamped with the quality inspection seal of the material manufacturer.
b) When the boiler materials are not directly provided by the material manufacturer,
the material operator shall provide the original material quality certificate, or a
copy of the material quality certificate stamped with the official seal of the
material operator and the signature (seal) of the responsible person.
4.7 The elongation after fracture (A) of steel plates, steel pipes and forging materials
used for pressure elements at room temperature in the longitudinal direction shall not
be less than 18%.
4.8 The room temperature Charpy V-notch impact absorption energy (KV2) of steel
plates, steel pipes and forgings used for pressure elements shall not be less than 27J.
Austenitic steel can be exempted from the impact test.
4.9 When steel plates, steel pipes and forgings used for pressure elements are directly
rolled and forged by casting billets (including die casting and continuous casting), the
deformation ratio shall not be less than 3.0.
4.10 After the material standard version is upda...