GB/T 43105-2023 (English Version)

Standard No.: GB/T 43105-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 43105-2023

Scope: This document specifies the ordering content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of seamless steel pipes for hydroforming parts. This document is applicable to seamless steel pipes (hereinafter referred to as steel pipes) used in the manufacture of parts by hydroforming. Welded steel pipes for hydroforming parts can refer to this document.

Introduction

1. Standard Background and Technology Evolution

GB/T 43105-2023 "Seamless Steel Tubes for Hydroforming Parts" was developed to meet the development needs of hydroforming technology. Hydroforming technology is widely used in the automotive, aerospace and other fields, and the quality requirements for steel tubes are increasing. This standard has been comprehensively revised on the original basis, adding a number of new technical indicators, such as work hardening index and grain size requirements.

2. Comparison of standard frameworks

Standard dimensions	GB/T 43105—2023	Comparison with old standards
Grades and chemical composition	New high-strength grades such as HF550, HF650, and HF800, and clear requirements for grain refinement elements	Only low strength levels are covered
Mechanical properties	Add work hardening index requirements (0.14~0.18), and refine the elongation index	No clear work hardening index
Non-destructive testing	Clearly define the ultrasonic and eddy current testing standards, and add the requirements for comparison sample tubes	Only specify the basic testing methods

3. Implementation suggestions

Purchasing stage:It is recommended that both the supply and demand parties clarify the brand, chemical composition and mechanical property requirements, and indicate special testing requirements when signing the contract.

Production stage:It is recommended to use advanced smelting equipment, strictly control the grain size and non-metallic inclusion content, and ensure product quality consistency.

Inspection stage:It is recommended to use automated non-destructive testing equipment to improve detection efficiency and accuracy, and establish a complete quality traceability system.

GB/T 43105-2023 Referenced Document

GB/T 10561-2023 Standard grading chart microscopic examination method for determination of non-metallic inclusion content in steel
GB/T 17395 Steel pipe size, shape, weight and allowable deviation*， 2024-09-29 Update
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
GB/T 2102 Acceptance, packaging, marking and quality certification for steel tubular products
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.12 Methods for chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
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 223.19 Methods for chemical analysis of iron,steel and alloy--The neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 223.23 Iron,,steel and alloy.Determination of nickel content.The dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method
GB/T 223.40 Iron, steel and alloy Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method
GB/T 223.59 Iron,steel and alloy.Determination of phosphorus content.Bismuth phosphomolybdate blue spectrophotometic method and antimony phosphomolybdate blue spectruophotometric method
GB/T 223.63 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method
GB/T 223.84 Steel and iron.Determination of titanium content.Diantipyrylmethane spectrophotometric method
GB/T 223.85 Steel and iron.Determination of sulfur content.Infrared absorption method after combustion in an induction furnace
GB/T 223.86 Steel and iron.Determination of total carbon content.Infrared absorption method after combustion in an induction furnace
GB/T 223.9 Iron,steel and alloy.Determination of aluminium content.Chrome azurol S photometric method
GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature
GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing
GB/T 30062 Terminology of steel pipes and tubes
GB/T 38719 Metallic materials Tube Determination of biaxial stress strain curve of tube by hydro bulging test
GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1
GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections

GB/T 43105-2023 history

2023 GB/T 43105-2023 Seamless steel pipe for hydroformed parts