H43 钢锭、钢坯 标准查询与下载

ASTM E768-99 钢的自动杂质评定用试样的制备和评价标准指南

1.1 This practice covers recognized methods for preparing metallographic specimens for automatic nonmetallic inclusion assessment of steel and includes a test for adequacy of preparation. 1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Preparing and Evaluating Specimens for Automatic Inclusion Assessment of Steel

ASTM B242-99(2004)e1 电镀用高碳钢制备的标准实施规范

1.1 This guide is intended as an aid in establishing and maintaining a preparatory cycle for electroplating on high-carbon steel (Note 0) producing a minimum of hydrogen embrittlement and maximum adhesion of the electrodeposited metal. For the purpose of this guide, steels containing 0.35 % of carbon or more, and case-hardened low-carbon steel, are defined as high-carbon steels. There is no generally recognized definite carbon content dividing high from low-carbon steels for electroplating purposes. Electroplating of plain high-carbon steel introduced problems not found in similar operations on low-carbon steel. During the cleaning and electroplating cycle, high-carbon steel differs from low-carbon steel in regard to its greater tendency to become embrittled and the greater difficulty in obtaining maximum adhesion of the electrodeposit. The preparation of low-carbon steel for electroplating is covered in Practice B 183.1.2 This guide does not apply to the electroplating of alloy steel. For methods of chromium electroplating directly on steel see Guide B 177.This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazards statement, see .

Standard Guide for Preparation of High-Carbon Steel for Electroplating

YB/T 5137-1998 高压用无缝钢管圆管坯

Round blank of seamless steel tube for high pressure

ASTM A314-97(2002) 锻造用不锈及耐热钢坯及钢棒的标准规范

1.1 This specification covers stainless steel billets and bars intended only for forging.

Standard Specification for Stainless Steel Billets and Bars for Forging

ASTM A314-97 锻造用不锈及耐热钢坯及钢棒的标准规范

1.1 This specification covers stainless steel billets and bars intended only for forging.

Standard Specification for Stainless Steel Billets and Bars for Forging

ARMY MIL-S-47319 A NOTICE 1-1995 高强度热处理铸坯和锻造的钢棒

This commercial item description covers brown kraft paper used for general wrapping applications.

STEEL, BAR, BILLET AND FORGINGS COBALT-FREE MARAGING

YB/T 5221-1993 合金结构钢圆管坯

Alloy structural steel round tube billet

ASTM A756-94(2001) 耐磨不锈轴承钢的标准规范

1.1 This specification covers the requirements for chromium-carbon bearing quality stainless steel to be used in the manufacture of anti-friction bearings. 1.2 Supplementary Requirements of an optional nature are provided and when desired shall be so stated in the order. 1.3 The values stated in inch-pound units are to be regarded as the standard.

Standard Specification for Stainless Anti-Friction Bearing Steel

ASTM A866-94 耐磨中碳轴承钢的标准规范

1.1 This specification covers medium carbon bearing quality steel to be used in the manufacture of anti-friction bearings. 1.2 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order. 1.3 The values stated in inch-pound units are to be regarded as the standard.

Standard Specification for Medium Carbon Anti-Friction Bearing Steel

ISO 4954:1993 冷镦和冷挤压用钢

Applies to wrought unalloyed and alloyed steels delivered as wire rods, wire or bars. The five sections cover the following topics: general requirements; steels not intended for heat treatment (diameters from 2 mm to 100 mm); case-hardening steels (diameters from 2 mm to 100 mm); steels for quenching and tempering including boron treated steels (diameters from 2 mm to 100 mm); stainless steels (diameters of 2 mm up to 25 mm for ferritic, up to 100 mm for martensitic, and up to 50 mm for austenitic steels).

Steels for cold heading and cold extruding

ASTM A763-93(2004) 铁素体不锈钢晶间腐蚀敏感性检测的标准操作规程

1.1 These practices cover the following four tests:1.1.1 Practice W8212;Oxalic acid etch test for detecting susceptibility to intergranular attack in stabilized ferritic stainless steels by classification of the etching structures (see Sections 3 through 10). 1.1.2 Practice 舒Ferric sulfate-sulfuric acid test for detecting susceptibility to intergranular attack in ferritic stainless steels (Sections 11 to 16). 1.1.3 Practice Y8212;Copper-copper sulfate-50 % sulfuric acid test for detecting susceptibility to intergranular attack in ferritic stainless steels (Sections 17 to 22).1.1.4 Practice Z8212;Copper-copper sulfate-16 % sulfuric acid test for detecting susceptibility to intergranular attack in ferritic stainless steels (Sections 23 to 29).1.2 The following factors govern the application of these practices (1-6):1.2.1 Practice W, oxalic acid test, is a rapid method of identifying, by simple, electrolytic etching, those specimens of certain ferritic alloys that are not susceptible to intergranular corrosion associated with chromium carbide precipitation. Practice W is used as a screening test to avoid the necessity, for acceptable specimens, of more extensive testing required by Practices X, Y, and Z. See Table 1 for a listing of alloys for which Practice W is appropriate. 1.2.2 Practices X, Y, and Z can be used to detect the susceptibility of certain ferritic alloys to intergranular attack associated with the precipitation of chromium carbides or nitrides. 1.2.3 Practices W, X, Y, and Z can also be used to evaluate the effect of heat treatment or of fusion welding on susceptibility to intergranular corrosion. 1.2.4 lists the identification ferritic stainless steels for which data on the application of at least one of the standard practices is available. 1.2.5 Some stabilized ferritic stainless steels may show high rates when tested by Practice X because of metallurgical factors not associated with chromium carbide or nitride precipitation. This possibility must be considered in selecting the test method. Combinations of alloys and test methods for which successful experience is available are shown in . Application of these standard tests to the other ferritic stainless steels will be by specific agreement between producer and user. 1.3 Depending on the test and alloy, evaluations may be accomplished by weight loss determination, microscopical examination, or bend test (Sections 30 and 31). The choices are listed in Table 1. 1.4 sibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific safety precautionary statements, see 3.2.5, Section 7, 13.1, and 19.1.

Standard Practices for Detecting Susceptibility to Intergranular Attack in Ferritic Stainless Steels

ASTM B795-93(1997) 确定粉末锻钢部件中合金和非合金铁杂质百分比的标准试验方法

1.1 This test method covers a metallographic procedure for determining the percentage of alloyed or unalloyed iron contamination present in powder forged low-alloy steel parts and the percentage of alloyed iron contamination in powder-forged iron and carbon steel parts. 1.2 Property values stated in SI units are the standard. Conversion factors to inch-pound units may be approximate. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determining the Percentage of Alloyed or Unalloyed Iron Contamination Present in Powder Forged (P/F) Steel Parts

ASTM B795-93(2002)e1 确定粉末锻钢部件中合金和非合金铁杂质百分比的标准试验方法

Cross product contamination occurs whenever alloy steel powders are processed in the same equipment as iron powders. Unalloyed iron particles, because they may not harden upon heat treatment, are a potential source of soft spots in low-alloy steel parts. Alloyed iron particles, having higher hardenability than an iron or carbon steel matrix, are a potential source of hard spots. Hard or soft spots may cause problems in service or machining. The results of the tests may be used to qualify parts for shipment in accordance with guidelines agreed between purchaser and manufacturer or to check the suitability of mixes for use in powder forging. 1.1 This test method covers a metallographic procedure for determining the percentage of alloyed or unalloyed iron contamination present in powder forged low-alloy steel parts and the percentage of alloyed iron contamination in powder-forged iron and carbon steel parts.1.2 Property values stated in SI units are the standard. Conversion factors to inch-pound units may be approximate.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determining the Percentage of Alloyed or Unalloyed Iron Contamination Present in Powder Forged (P/F) Steel Parts

ISO 9477:1992 一般工程和结构用高强度铸钢

Specifies requirements for four grades of heat-treated cast carbon and alloy steels for service at ambient temperature. Where castings are produced by welding together component parts, it does not cover the welding process or the properties of the weldment. Properties at other temperatures may be agreed on through the use of the supplementary requirements in 9.4.1 or 9.4.4 of ISO 4990:1986.

High strength cast steels for general engineering and structural purposes

ASTM B254-92(2004)e1 不锈钢的制备及电镀的标准规程

1.1 Various metals are electrodeposited on stainless steel for color matching, lubrication during cold heading, spring-coiling and wire-drawing operations, reduction of scaling at high temperatures, improvement of wettability (as in fountain pens), improvement of heat and electrical conductance, prevention of galling, jewelry decoration, and prevention of superficial rusting. 1.2 This practice is presented as an aid to electroplaters and finishing engineers, confronted with problems inherent in the electrodeposition of metals on stainless steel. It is not a standardized procedure but a guide to the production of smooth adherent electrodeposits on stainless steel.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Preparation of and Electroplating on Stainless Steel

ASTM A686-92(2004) 碳素工具钢的标准规范

1.1 This specification covers the chemical, mechanical, and physical requirements for available wrought carbon tool steel products. 1.2 These products, which include hot- or cold-finished bar, plate, sheet, rod, wire, or forgings, are normally fabricated into tools, dies, or fixtures. The selection of a material for a particular application will depend upon design, service conditions, and desired properties. 1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

Standard Specification for Tool Steel, Carbon

BS EN 10083-1:1991 淬硬钢和回火钢.第1部分:特种钢供货技术条件

Requirements for semi-finished products, bars, rod, wire flats, hot or cold rolled sheet/plate and strip and hammer and drop forgings made from direct hardening unalloyed or alloyed steels.

Quenched and tempered steels - Technical delivery conditions for special steels

JIS G 4319:1991 不锈钢锻件用初轧坯和钢坯

この規格は，ステンレス鋼鍛鋼品の製造に使用される再鍛造用鋼片(以下，鋼片という。)について規定する。

Stainless steel blooms and billets for forgings

STAS 11485-1991 光硅铝混凝土（绝热）

Prezentul standard se refer? la betoanele silicoaluminoase u?oare (termoizolante) din amestecul agregatelor u?oare (?amote u?oare STAS 4915-76, diatomit pentru materiale termoizolante STAS 1427-66, calcinat, perlit expandat) cu lian?i hidraulici (ciment r

Light silicoaluminous concretes (Thermoinsulating)

STAS 11085-1991 高铝耐火水泥

Prezentul standard se refer? la cimenturile refractare superaluminoase utilizate la fabricarea betoanelo silicoaluminoase dense ?i u?oare, cu temperaturi de utilizare peste 1000°C.

High alumina refractory cements