GB/T 14993-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14993-2025	RFQ	ASK	3 days	Wrought superalloy - Hot-rolled and forged bars	Valid
GB/T 14993-2008	279	Add to Cart	3 days	Hot-rolled superalloy bars for rotating parts	Valid
GB/T 14993-1994	319	Add to Cart	3 days	Hot-rolled heat-resisting superalloy bars for rotating parts	Obsolete

Basic data

Standard ID: GB/T 14993-2025 (GB/T14993-2025)
Description (Translated English): Wrought superalloy - Hot-rolled and forged bars
Sector / Industry: National Standard (Recommended)
Date of Implementation: 2026-03-01
Older Standard (superseded by this standard): GB/T 14993-2008, GB/T 25828-2010

GB/T 14993-2008: Hot-rolled superalloy bars for rotating parts

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hot-rolled superalloy bars for rotating parts ICS 77.140 H57 National Standards of People's Republic of China Replacing GB/T 14993-1994 Rotating parts with high-temperature alloy hot-rolled bars Posted 2008-05-13 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 14993-1994 "rotating member with high-temperature alloy hot-rolled bars." This standard compared with GB/T 14993-1994, the main changes are as follows. --- Increase "order content" chapter; --- Minimum diameter alloy bars by 20mm, adjusted to 8mm, and a corresponding increase in the size of the allowable deviation regulations; --- Increased content GH2150A, GH4133B alloy grades, chemical composition, mechanical properties, low magnification and so on; --- Deleted the relevant content GH2302, GH4043 alloy grades, chemical composition, mechanical properties, low magnification and so on; --- Remove the space dedicated GH2130 diameter 32mm material content; --- Canceled smelting furnace method GH4033 alloy; --- Increased vacuum induction furnace GH2130 alloy vacuum arc smelting method; --- Increases the surface state of the light delivery vehicle; --- Ultrasonic testing modified to press GB/T 4162-1991 standard and specifies the eligibility level; --- Bars usually delivery length diameter hot rolled bars ≤45mm by "1500mm ~ 5000mm" changed to "1500mm ~ 6000mm "; diameter > 45mm hot rolled bars by" 1000mm ~ 4000mm "changed to" 1000mm ~ 6000mm "; --- Surface quality appropriate modifications, delete the words "heat processing", adding "bar surface roughness should meet ultrasound Inspection requirements "; --- Added "special requirements" clause; --- Added "Test methods" chapter; --- On the "inspection rules" in a chapter of the larger changes to make it more clear and specific. The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Dongbei Special Steel Group Co., Ltd. (Fushun), Metallurgical Industry Information Standards Institute. The main drafters of this standard. Gu Qiang, Yang Yujun, DAI Qiang, Liu gem, Luan Yan. This standard replaces the standards previously issued as follows. --- GB n176-1982, GB/T 14993-1994. Rotating parts with high-temperature alloy hot-rolled bars

1 Scope

This standard specifies the superalloy hot-rolled bars of size, shape, requirements, test methods, inspection rules, packaging, marking and quality certificate Manual. This standard applies to the manufacture of high temperature rotating parts with high-temperature alloy hot-rolled bars (hereinafter referred to as bars).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 223.3 steel and alloy chemical analysis method two antipyrine methane phosphomolybdate gravimetric method for the determination of phosphorus content Determination of manganese content GB/T 223.4 steel and alloy chemical analysis of ammonium nitrate oxidation volumetric method GB/T 223.8 Determination of aluminum content in steel and alloy chemical analysis of sodium fluoride separation -EDTA titration Spectrophotometric determination of GB/T 223.9 steel and alloy chemical analysis of aluminum content Chromium Azure S Spectrophotometric determination of aluminum content of chromium azure S - GB/T 223.10 Methods for chemical analysis of iron, steel and alloy separated CUPFERRON Determination of chromium content GB/T 223.11 Methods for chemical analysis of iron, steel and alloy The ammonium persulfate oxidation volumetric method GB/T 223.13 Methods for chemical analysis of iron, steel and alloy The ammonium ferrous sulfate titration method for the determination of vanadium content GB/T 223.14 Methods for chemical analysis of iron, steel and alloys, tantalum reagent extraction and spectrophotometric determination of vanadium content Spectrophotometric determination of titanium content GB/T 223.16 Methods for chemical analysis of iron, steel and alloy The chromotropic acid GB/T 223.17 steel and alloy chemical analysis method two titanium content determination in methane antipyrine GB/T 223.18 Methods for chemical analysis of iron, steel and alloy The sodium thiosulfate separation - determination of copper content Iodometry GB/T 223.19 Methods for chemical analysis of iron, steel and alloy neocuproine - chloroform extraction spectrophotometric determination of copper content GB/T 223.20 Methods for chemical analysis of iron, steel and alloy potentiometric titration determination of cobalt content GB/T 223.24 Methods for chemical analysis of iron, steel and alloy The extraction - dimethylglyoxime spectrophotometric determination of nickel content Determination of nickel content GB/T 223.25 Methods for chemical analysis of iron, steel and alloy dimethylglyoxime gravimetric method Spectrophotometric determination of molybdenum content GB/T 223.26 Methods for chemical analysis of iron, steel and alloy The thiocyanate direct GB/T 223.28 Determination of molybdenum steel and alloy chemical analysis method σ- benzoin gravimetric method GB/T 223.29 Methods for chemical analysis of iron, steel and alloy carrier precipitation - xylenol orange spectrophotometric determination of lead content GB/T 223.30 Methods for chemical analysis of iron, steel and alloys of bromine mandelic acid precipitation - arserazo Ⅲ spectrophotometry Zirconium content GB/T 223.31 Methods for chemical analysis of iron, steel and alloy distillation - spectrophotometric determination of arsenic content - Molybdenum blue spectrophotometric GB/T 223.33 Methods for chemical analysis of iron, steel and alloy Extraction separation - chlorophosphonazo mA spectrophotometric determination of cerium content Determination of niobium content - Gravimetric method - GB/T 223.38 Methods for chemical analysis of iron, steel and alloy ion exchange separation GB/T 223.40 Determination of steel and alloy niobium content sulphochlorophenol S spectrophotometry Determination of GB/T 223.43 Methods for chemical analysis of iron, steel and alloy of tungsten content Determination of magnesium content GB/T 223.46 Methods for chemical analysis of iron, steel and alloys by flame atomic absorption spectrometry GB/T 223.47 Methods for chemical analysis of iron, steel and alloy carrier precipitation - molybdenum blue Determination of antimony content ......

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