Product name:20MnMoB alloy structure steel stock
Thickness:1.2-600 mm
Width::1220-4200 mm
Length:5000-18000 mm
Notes:coil thickness ≤ 25 mm
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National Standard of PRC Alloy Structure Steels GB/T …

The standard has revised GB/T 3077-1988 ”The Technical Conditions of Alloy Structure Steel”. ... National Standard of PRC Alloy Structure Steels GB/T 3077-1999 Replace GB/T 3077-1988 . 1. Scope ... bar stock of diameter greater than 250 mm

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GB3077-1999 English Version | Steel | Heat Treating

Foreword The standard has revised GB/T 3077-1988 ”The Technical Conditions of Alloy Structure Steel”. There have been some changes in this national’s standard over its previous edition in the following technical aspects: Change the name of the standard to “Alloy Structure Steel”; After ...

GB_T_3077_1999_en | Heat Treating | Microstructure

Nov 01, 1999· GB_T_3077_1999_en. Uploaded by stt85638. Related Interests ... The backfire heating temperature of the 20MnMoB steel is changed from “2000℃” to “200℃” in the serial ... This standard is applicable to the alloy structure steel bar whose diameter and thickness is no more than 250mm. shape. weight and permissible deviation ...

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Gb3077 - SlideShare

Foreword The standard has revised GB/T 3077-1988 ”The Technical Conditions of Alloy Structure Steel”. There have been some changes in this national’s standard …

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Gb3077 - [PDF Document]

DESCRIPTION. 1. Foreword The standard has revised GB/T 3077-1988 ”The Technical Conditions of Alloy Structure Steel”. There have been some changes in this national’s standard over…

GB-T3077-1999

Translate this pageThrough mutual negotiation, alloy structure steel rod whose diameter or thickness is larger than 250mm can also be supplied. ... should accord with Chart 3 stipulations. 6.4.1.1 Once the steel material size is smaller than that of the sample raw stock, the steel material of the original size should be given hot processing. ... ℃ Coolant ...

GB_T3077-1999

Translate this pageNational Standard of P. R. C GB/T 3077—1999 Alloy Structure Steels Published on 1999-11-01 1 of 24 Implemented on 2000-08-01 Published by National Quality & Technical Supervision Bureau GB/T 3077—1999 Preface This standard has revised the GB/T 3077―1988 Alloy Structure Steel …

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GBT 3077-1999

Translate this page : Preface This standard is to revise GB/T 3077-1988 T echnical Conditions of Alloy Structure Steels. There have been some changes in this national’s standard over its previous edition in the following technical aspects: - Change the name of the standard to “Alloy Structure Steels”; - After negotiation between the two sides of supplier and buyer, the bar stock of which the ...

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42CrMo/42CrMo4 Feuille en acier allié, laminés à chaud ...

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20MnMoB alloy structure steel stock:
20MnMoB alloy structure steel stock also can be called as alloy structural steel. Alloy steel means this kind of grade contains some special alloy composition. Alloy steel plate application is very wide, as : Machine, pressure vessel, construction and so on .

 


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