GB/T 37610-2019 English PDF (GBT37610-2019)

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GB/T 37610-2019: Corrosion-resistant alloy small diameter precision seamless tubes
GB/T 37610-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.99;77.140.75
H 59
Corrosion-resistant alloy small diameter precision
seamless tubes
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Order content ... 6 
4 Size, appearance ... 7 
5 Technical requirements ... 8 
6 Test methods ... 15 
7 Inspection rules ... 16 
8 Packaging, marks and quality certificate ... 17 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of National Technical Committee
on Steel of Standardization Administration of China (SAC/TC 183).
The drafting organizations of this Standard: Zhejiang Jiuli Special Material
Technology Co., Ltd., Jiangsu Wujin Stainless Co., Ltd., Metallurgical Industry
Information Standards Institute, Yongxing Special Stainless-Steel Co., Ltd.,
Baosteel Special Steel Co., Ltd., Shanxi Taigang Stainless Steel Pipe Co., Ltd.,
Zhejiang Yongshang Special Material Co., Ltd., Shanghai Yilang Alloy Material
Co., Ltd., Harbin Electric Group (Qinhuangdao) Heavy Equipment Co., Ltd.,
Pangang Group Jiangyou Great Wall Special Steel Co., Ltd., Huzhou Sanjing
Cryogenic Equipment Co., Ltd., Fushun Special Steel Co., Ltd.
Main drafters of this Standard: Cai Zhigang, Li Zhengzhou, Yan Chengming,
Ding Jinxian, Wang Jianyong, Ma Mingjuan, Cheng Yiming, FangDewei, Fu
Huaqing, Ye Jinhui, Fang Tie, Jiang Wentao, Wu Bo, Cao Lihong, Cao Ping,
Wu Minghua, Li Peng, Huang Wei.
Corrosion-resistant alloy small diameter precision
seamless tubes
1 Scope
This Standard specifies order content, size, appearance, technical
requirements, test methods, inspection rules, packaging, marks and quality
certificate of corrosion-resistant alloy small diameter precision seamless tubes.
This Standard is applicable to corrosion-resistant alloy cold-rolled (drawn) small
diameter precision seamless tubes such as nickel based, iron nickel based,
pure nickel and nickel copper of which nominal outer diameter is 3mm~30mm,
and wall thickness is 0.3mm~3.0mm (hereinafter referred to as alloy tubes).
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 223.4, Alloyed steel - Determination of manganese content -
Potentiometric or visual titration method
GB/T 223.5, Steel and iron - Determination of acid-soluble silicon and total
silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.11, Iron, Steel and Alloy - Determination of Chromium Content -
Visual Titration or Potentiometric Titration Method
GB/T 223.14, Methods for Chemical Analysis of Iron, Steel and Alloy - The
N-Benzoy-N-Phenylhydroxylamine Extraction Photometric Method for the
Determination of Vanadium Content
GB/T 223.17, Methods for chemical analysis of iron, steel and alloy - The
diantipyryl methane photometric method for the determination of titanium
content
GB/T 223.18, Methods for chemical analysis of iron, steel and alloy - The
sodium thiosulfate separation iodometric method for the determination of
copper content
GB/T 223.25, Methods for chemical analysis of iron, steel and alloy - The
dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 223.26, Iron, steel and alloy - Determination of molybdenum content -
The thiocyanate spectrophotometric method
GB/T 223.38, Methods for chemical analysis of iron, steel and alloy - The
anion-exchange separation-gravimetric method for the determination of
niobium content
GB/T 223.43, Iron, steel and alloy - Determination of tungsten content -
Gravimetric method and spectrophotometric method
GB/T 223.62, Methods for chemical analysis of iron, steel and alloy - The
butyl acetate extraction photometric method for the determination of
phosphorus content
GB/T 223.65, Steel, iron and alloy - Determination of cobalt content - Flame
atomic absorption spectrometric method
GB/T 223.70, Iron, steel and alloy - Determination of iron contents - O-
phenanthroline spectrophotometric method
GB/T 223.79, Iron and steel - Determination of multi - element contents - X -
ray fluorescence spectrometry (Routine method)
GB/T 223.81, Iron, steel and alloy - Determination of total aluminum and total
boron contents - Microwave digestion - inductively coupled plasma mass
spectrometric method
GB/T 228.1, Metallic materials - Tensile testing - Part 1: Method of test at
room temperature
GB/T 228.2, Metallic materials - Tensile testing - Part 2: Method of test at
elevated temperature
GB/T 241, Metal Materials - Tube - Hydrostatic pressure test
GB/T 242, Metal Materials - Tube - Drift-expending test
GB/T 246, Metallic materials - Tube - Flattening test
GB/T 2102, Acceptance, packing, marking and quality certification of steel
pipe
GB/T 5777-2008, Seamless Steel Pipe and Tubing Methods for Ultrasonic
Testing
GB/T 6394, Metal - Methods for estimating the average grain size
GB/T 7735-2016, Automated eddy current testing of seamless and welded
(except submerged arc-welded) steel tubes for detection of imperfections
GB/T 10561-2005, Steel - Determination of Content of Nonmetallic
Inclusions - Micrographic Method Using Standards Diagrams
GB/T 11170, Stainless steel - Determination of multi-element contents -
Spark discharge atomic emission spectrometric method (Routine method)
GB/T 15007, Designations of corrosion-resistant alloy
GB/T 15260-2016, Standard Test Method for Intergranular Corrosion of
Nickel Alloys by Corrosion of Metals and Alloys
GB/T 20066, Steel and Iron - Sampling and Preparation of Samples for the
Determination of Chemical Composition
GB/T 20123, Steel and iron - Determination of total carbon and sulfur content
Infrared absorption method after combustion in an induction furnace (routine
method)
GB/T 20125, Low-alloy steel - Determination of multi-element contents -
Inductively coupled plasma atomic emission spectrometric method
YB/T 4395, Steel Determination of molybdenum, niobium and tungsten
contents. Inductively coupled plasma atomic emission spectrometric method
YS/T 325.2, Methods for chemical analysis of nickel-copper alloy - Part 2:
Determination of copper content - Electrolysis weight method
3 Order content
Contract or order for alloy tubes according to this Standard shall at least contain
following information:
a) reference to this Standard;
b) product name;
c) alloy designation;
d) delivery state;
e) specification (outer diameter × wall thickness × length, in millimeters);
f) delivery quantity (total length, total number of pieces or total weight);
g) production method;
h) special requirements.
4 Size, appearance
4.1 Outer diameter and wall thickness
4.1.1 General size of alloy tubes: nominal outer diameter is 3.0mm~30mm, and
nominal wall thickness is 0.3mm~3.0mm.
4.1.2 Unless otherwise specified in contract, alloy tubes are delivered according
to nominal outer diameter (D) and nominal wall thickne...