GB/T 35078-2018High speed precision hot upsetting forgings—General specification (English PDF)
高速精密热镦锻件 通用技术条件
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 35078-2018 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 14, 2018
Implementation date
December 1, 2018
Scope
GB/T 35078-2018 is the English-translated version of 高速精密热镦锻件 通用技术条件.
GB/T 35078-2018 is the general specification for steel forgings produced by high-speed precision hot upsetting. It covers forgings weighing below 7.5 kg with outer dimensions no greater than 180 mm, made on high-speed precision hot upsetting equipment at more than 50 strokes per minute.
It sets the technical requirements, starting from the forging drawings, technical agreements and supply contract as the basis for acceptance, and from raw materials complying with GB/T 699, GB/T 700, GB/T 3077, GB/T 18254 and other steel standards.
It also gives the test methods and inspection rules, and the requirements for marking, quality certificates, rust-proof packaging, transportation and storage. Forging producers and their customers use it for supply and acceptance. It was issued on 14 May 2018 and has applied since 1 December 2018.
Found what you need?
Document preview — GB/T 35078-2018
National Standard of the People's Republic of China
- ICS
- 77.140.85
- Classification
- J 32
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative References4
- 3 Terms and Definitions5
- 4 Technical Requirements5
- 5 Test Methods and Inspection Rules8
- 6 Mark, Package, Transportation and Storage9
1 Scope
This Standard specifies the technical requirements, test methods and inspection rules, mark, package, transportation and storage of high-speed precision hot upsetting forgings (hereinafter referred to as "forgings").
This Standard is applicable to using the high-speed precision hot upsetting forging equipment to produce the steel precision hot forgings with mass 7.5kg below and outer size no greater than 180mm at the beat of more than 50 times per minute.
2 Normative References
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 224 Determination of Depth of Decarburization of Steels
GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching
GB/T 228.1 Metallic Materials - Tensile Testing - Part 1. Method of Test at Room Temperature
GB/T 229 Metallic Materials - Charpy Pendulum Impact Test Method
GB/T 230.1 Metallic materials - Rockwell Hardness Test - Part 1. Test Method (Scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1. Test Method
GB/T 699 Quality Carbon Structural Steels
GB/T 700 Carbon Structural Steels
GB/T 702 Hot-Rolled Steel Bars - Dimensions, Shape, Weight and Tolerances
GB/T 3077 Alloy Structure Steels
GB/T 5216 Technical Requirements for Structural Steel with Specified Hardenability Bands
GB/T 6394 Metal - Methods for Estimating the Average Grain Size
GB/T 8541 Terminology of Forging and Stamping
GB/T 13298 Inspection Methods of Microstructure for Metals
GB/T 13299 Steel - Determination of Microstructure
GB 13318-2003 General Rules for Safety and Environmental Conservation of Forging Production
GB/T 13320 Metallographic Grading Atlas and Assessing Method for Steel Die Forgings
GB/T 18254 High-Carbon Chromium Bearing Steel
GB/T 19096-2003 Technical Drawing - Drawing Presentation - Vocabulary and Indications for Edges of Undefined Shape
3 Terms and Definitions
The terms and definitions stipulated in GB/T 8541 are applicable to this document.
4 Technical Requirements
4.1 Acceptance basis
The forging drawings, technical agreements and supply contract signed by the supplier and the purchaser shall be served as the main basis for the inspection and delivery of the forged finished products.
4.2 Raw materials
4.2.1 The raw materials selected for forgings shall conform to the provisions of GB/T 699, GB/T 700, GB/T 3077, GB/T 18254, GB/T 702, GB/T 5216, and other standards.
4.2.2 The steel used for forgings in addition to meeting the requirements of 4.2.1, different forgings manufacturers shall also take enterprise standard or special technical […]
6 Mark, Package, Transportation and Storage
6.1 Mark requirements
6.1.1 The forgings shall be marked; when marking is not required, it shall be determined through the negotiation between the supplier and the purchaser.
6.1.2 Each batch of forgings shall be accompanied by a quality certificate issued by the Quality Inspection Department.
6.1.3 The symbol of storage and transportation of the package shall conform to the provisions of GB/T 191; it shall mark the following contents.
a) Supplier name, address, contact number and fax;
b) The name, drawing number, quantity, status and part number of the packaged products;
c) The purchaser organization and address;
d) Production batch number;
e) Date of packaging, and rust-proof period.
6.2 Package requirements
The forgings shall take the rust-proofed measures before being packaged; the rust-proof period shall be determined through the negotiation between the supplier and the purchaser. The packaging box shall adopt wooden box, calcium plastic corrugated box, metal packing box, or reusable turnover box, etc.; if agreed by the purchaser, the simple package can also be adopted. Appropriated measures shall be taken during the packaging to prevent bumps during the transportation.
6.3 Transportation requirements
The forgings shall be avoided rain and bumps during the exit-factory transportation; ensure no damage during the normal transportation.
6.4 Storage requirements
The packaged forgings shall be stored neatly in a ventilated and dry warehouse according to their types and models. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 224Determination of the depth of decarburization of steels
- GB/T 226Test method for macrostructure and defect of steel by etching
- GB/T 228.1Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
- GB/T 229Metallic Materials — Charpy Pendulum Impact Test Method
- GB/T 230.1Metallic materials - Rockwell hardness test - Part 1: Test method
Similar standards
How to Download GB/T 35078-2018
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB 13318-2003 — General rules for safety and environmental conservation of forging production
GB/T 13298-2015 — Inspection Methods of Microstructure for Metals
GB/T 13299-2022 — Determination of free cementite, pearlite and Widmanstaten structure in steel
Secure payment via Stripe
Payments accepted
GB/T 35078-2018
$105.00