GB/T 14994-2008 in English

《GB/T 14994-2008高温合金冷拉棒材》由TC183（全国钢标准化技术委员会）归口，TC183SC10（全国钢标准化技术委员会特殊合金分会）执行，主管部门为中国钢铁工业协会。
本标准代替ＧＢ／Ｔ１４９９４―１９９４《高温合金冷拉棒材》。本标准规定了高温合金冷拉棒材的尺寸、外形及允许偏差、技术要求、试验方法、检验规则、包装、标志及质量证明书等。 本标准与ＧＢ／Ｔ１４９９４―１９９４《高温合金冷拉棒材》相比，主要变化如下：
―――增加了ＧＨ４０８０Ａ、ＧＨ４０９０、ＧＨ４１６９、ＧＨ２６９６四个合金牌号及技术要求；
―――冶炼方法中对ＧＨ３０３０合金增加非真空感应＋电渣重熔、电弧炉＋电渣重熔和真空感应炉＋电渣重熔工艺；对ＧＨ４０３３合金增加非真空感应炉＋ 真空电弧炉工艺；对ＧＨ２１３２ 合金增加真空感应炉＋电渣重熔工艺；
―――塔形试验按ＧＢ／Ｔ１５７１１的规定；
―――化学分析试样的取样方法按ＧＢ／Ｔ２００６６的规定；
―――棒材的尺寸及允许偏差按ＧＢ／Ｔ９０５―１９９４的规定；
―――超声波探伤按规格明确验收级别。

GB/T 14994-2008 Superalloy Cold Drawn Bars

1 Scope

This standard specifies the dimensions, shape and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of superalloy cold drawn bars.

This standard is applicable to superalloy cold drawn bars, which can be used to manufacture industrial fasteners and other parts.

2 Normative References

The following documents contain provisions which, through reference in this standard, constitute provisions of this part. For dated references, subsequent amendments to (excluding corrections), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document applies.

GB/T 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.4 Methods for chemical analysis of iron, steel and alloy - The volumetric method for determination of manganese content by ammonium nitrate oxidation
GB/T 223.8 Methods for chemical analysis of iron, steel and alloy－The sodium fluoride separation-EDTA titration method for the determination of aluminium content
GB/T 223.9 Methods for chemical analysis of iron, steel and alloy - The chrom azurol s photometric method for the determination of aluminium content
GB/T 223.10 Methods for chemical analysis of iron, steel and alloy - The cupferron separation - chrome azurol S photometric method for the determination of aluminium content
GB/T 223.11 Methods for chemical analysis of iron, steel and alloy - The ammonium persulfate oxidation volumetric method for the determination of chromium content
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 alloy - The N-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content
GB/T 223.16 Methods for chemical analysis of iron, steel and alloy - The chromotropic acid photometric method for the determination of titanium content
GB/T 223.17 Methods for chemical analysis of iron steel and alloy - The diantipyrylmethane 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 iodimetric method for the determination of copper 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 223.20 Methods for chemical analysis of iron, steel and alloy - The potentiometric titration method for the determination of cobalt content
GB/T 223.22 Methods for chemical analysis of iron, steel and alloy - The nitroso-R-salt spectrophotometric method for the determination of cobalt 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 Methods for chemical analysis of iron steel and alloy - The thiocyanate direct photometric method for the determination of molybdenum content
GB/T 223.28 Methods for chemical analysis of iron steel and alloy - The α-benzoinoxime gravimetric method for the determination of molybdenum content
GB/T 223.29 Methods for chemical analysis of iron, steel and alloy - The xylenol orange photometric method for determination of lead content after carrier precipitation
GB/T 223.30 Methods for chemical analysis of iron, steel and alloy - The arsenazo III spectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid
GB/T 223.31 Methods for chemical analysis of iron, steel and alloy - The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content
GB/T 223.33 Methods for chemical analysis of iron, steel and alloy - The chlorophosphonago mA photometric method for the determination of cerium content after extraction separation
GB/T 223.36 Methods for chemical analysis of iron, steel and alloy - The neutral titration method for the determination of nitrogen content after distillation separation
GB/T 223.37 Methods for chemical analysis of iron, steel and alloy - The indophenal blue photometric methods for the determination of nitrogen content after distillation separation
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 223.40 Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.46 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrometric method for the determination of magnesium content
GB/T 223.47 Methods for chemical analysis of iron, steel and alloy - The carrier precipitation-molybdenum blue potometric method for the determination of antimony content
GB/T 223.48 Methods for chemical analysis of iron, steel and alloy - The semixylenol orange photometric method for the determination of bismuth content
GB/T 223.59 Methods for chemical analysis of iron, steel and alloy - The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy - The perchloric acid dehydration gravimetric method for the determination of silicon content
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 223.63 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content
GB/T 223.67 Methods for chemical analysis of iron, steel and alloy - The reducing distillation-methylene blue photometric method for the determination of sulfur content
GB/T 223.68 Methods for chemical analysis of iron, steel and alloy - The potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content
GB/T 223.70 Methods for chemical analysis of iron steel and alloy - The O-Phenanthroline spectrophotometric method for the determination of iron content

Foreword II
1 Scope
2 Normative References
3 Order information
4 Dimensions, shape and tolerances
5 Technical requirements
6 Test methods
7 Inspection rules
8 Packaging, marking and quality certificate