GB/T 35741-2017Specification of stainless steel forgings for industrial valves (English PDF)
工业阀门用不锈钢锻件技术条件
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 35741-2017 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 29, 2017
Implementation date
July 1, 2018
Scope
GB/T 35741-2017 is the English-translated version of 工业阀门用不锈钢锻件技术条件.
GB/T 35741-2017 is the Chinese standard "Specification of stainless steel forgings for industrial valves".
Its scope clause reads: This standard specifies the industrial valve stainless steel forgings structural form, technical requirements, test methods, inspection rules, signs and quality certification Book as well as protection, packaging and storage.
This standard applies to industrial valves with pressure stainless steel forgings. Non-pressure stainless steel forgings can be implemented by reference. Its clauses include structure.
Found what you need?
Document preview — GB/T 35741-2017
National Standard of the People's Republic of China
- ICS
- 23.060.01
- Classification
- J 16
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Structure
- 3.1 Forgings
- 3.2 ring forgings
- 3.3 pie-shaped forgings
- 3.4 bowl-shaped forgings
- 3.5 long neck flange forgings
- 3.6 bar forging
- 3.7 Body Forgings
- 4 technical requirements
- 4.1 smelting
- 4.2 forgings size
- 4.3 chemical composition
- 4.4 mechanical properties
- 4.5 forging
- 4.6 forgings level
- 4.7 forgings heat treatment
- 4.8 forgings process evaluation
- 4.9 Metallographic requirements
- 4.10 Intergranular corrosion
- 4.11 low magnification organization
- 4.12 Sampling rules
- 4.13 welding repair
- 4.14 Non-destructive testing
- 4.15 Appearance Quality
- 5 test methods
- 5.1 appearance inspection
- 5.2 size check
- 5.3 Chemical Composition
- 5.4 Mechanical Properties
- 5.5 Determination of grain size
- 5.6 Non-metallic inclusions inspection
- 5.7 Ferrite content
- 5.8 Intergranular corrosion
- 5.9 low magnification organizations
- 5.10 Non-destructive testing
- 5.11 logo inspection
- 6 Inspection rules
- 6.1 Inspection Items
- 6.2 factory inspection
- 6.3 process qualification test
- 7 mark and quality certificate
- 7.1 mark
- 7.2 Quality Certificate
- 8 protection, packaging and storage and transportation
1 Scope
This standard specifies the industrial valve stainless steel forgings structural form, technical requirements, test methods, inspection rules, signs and quality certification
Book as well as protection, packaging and storage.
This standard applies to industrial valves with pressure stainless steel forgings. Non-pressure stainless steel forgings can be implemented by reference.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Pressure vessels - Part 4. Manufacture, inspection and acceptance
GB/T 222 steel finished chemical composition tolerance
GB/T 223 (all parts) steel and alloy
GB/T 226 low magnification organizations and defects acid corrosion test
GB/T 228.1 tensile testing of metallic materials - Part 1. room temperature test method
GB/T 229 Charpy pendulum impact test method for metallic materials
GB/T 231.1 Brinell hardness test of metallic materials - Part 1. Test methods
GB/T 4334 metals and alloys corrosion of stainless steel intergranular corrosion test methods
Metallic average grain size GB/T GB/T 10561 steel non-metallic inclusions in the content of the standard grading test microscopic examination
GB/T 13305 stainless steel alpha-phase area content metallographic determination
GB/T 20066 Steel and iron - Determination of chemical composition of the sample sampling and sample preparation methods
Valve liquid penetration testing
Valve forgings ultrasonic testing
JB/T 7928 industrial valve delivery requirements
NB/T 47010 stainless steel and heat-resistant steel forgings for pressure equipment
3 structure
3.1 cylindrical forgings
For the cavity cavity, branch, etc., axial length L is greater than its outer diameter D axisymmetric hollow forgings, shown in Figure 1, t is the nominal thickness.
3.2 ring forgings
For take over, seals, etc., the axial length L is not greater than its outer diameter D axisymmetric hollow forgings, as shown in Figure 2, L and t in the small
The nominal thickness.
3.3 pie-shaped forgings
For the valve flap, valve cover, axial length L is not greater than its outer diameter D axisymmetric solid forgings, shown in Figure 3, L is the nominal thickness.
......
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
Similar standards
How to Download GB/T 35741-2017
- 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/T 10003-2026 — Biaxially oriented polypropylene (BOPP) film
GB/T 10004-2026 — Plastic/Plastic laminated films and pouches for packaging
GB/T 10007-2026 — Rigid cellular plastics - Determination of shear properties
Secure payment via Stripe
Payments accepted
GB/T 35741-2017
$235.00