The amount of manganese drier used in oxidizing-type coatings significantly affects their drying properties. This test method may be used to confirm the stated manganese content of pure liquid manganese drier soluble in toluene-alcohol and manufactured for use by the coatings industry.1.1 This test method covers a titrimetric determination of manganese in liquid paint driers that can be dissolved in a toluene-alcohol mixture and utilizes the disodium salt of ethylenediaminetetraacetic acid dihydrate (EDTA). 1.2 This test method is not applicable to drier blends. 1.3 All cations that can be titrated with EDTA in alkaline media interfere and must not be present in the sample. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 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.

定价： 0元

1.1 This specification establishes the requirements for manganese bronze rod, bar and shapes produced in Copper Alloy UNS No. C67000 or C67500. 1.2 This specification is the SI-Metric companion to Specification B138. 1.3 Warning-Mercury is a definite health hazard in use and disposal (Section 9). Note 1-Product suitable for hot forging applications is available under Specification B124.

定价： 0元

1.1 These test methods cover the chemical analysis of silicomanganese and ferrosilicon manganese having chemical compositions within the following limits:ElementConcentration, %Arsenic0.10 maxCarbon3.0 maxChromium0.50 maxLead0.030 maxManganese50.0 to 68.0Molybdenum0.10 maxNickel0.20 maxPhosphorus0.20 maxSilicon35.0 maxSulfur0.04 maxTin0.010 max1.2 The test methods in this standard are contained in the sections indicated below:SectionsArsenic by the Molybdenum Blue Photometric Method (0.002to 0.06 %) Lead by the Dithizone Photometric Method (0.02 to 0.05 %)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. Specific hazards statements are given in Section 5 and in special warning paragraphs throughout these test methods.

定价： 0元

定价： 605元 / 折扣价： 515 元

1.1 This specification covers chromium-manganese-silicon alloy steel plates, intended particularly for welded boilers and other pressure vessels.1.2 Plates under this specification are available in two grades having strength levels as follows:Grade Tensile Strengthksi [MPa]A 75-95 [515-655]B 85-110 [585-760]1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the maximum thickness of plates furnished under this specification to 2 in. [50 mm].1.4 Grade A is suitable for rivets and when so used the bars shall be subject to the requirements for rolled bars specified in Specification A 31, except for the chemical and mechanical requirements.1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

定价： 0元

This and other COD test methods are used to chemically determine the quantity of oxygen that certain impurities in water will consume. Typically this measurement is used to monitor and control oxygen-consuming pollutants, both inorganic and organic, in domestic and industrial wastewater applications.For samples from a specific source, COD can be related empirically to BOD, organic carbon, or organic matter. The COD value is useful for monitoring and process control after this correlation has been established.1.1 This test method covers the colorimetric determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a manganese III solution under specified conditions. This standard method does not use characteristic heavy metal reagents, thus eliminating environmental and disposal concerns apparent in other methods.1.2 This test method determines chemical oxygen demand colorimetrically using manganese III to obtain a visible color intensity inversely proportional to the chemical oxygen demand of the sample. Analytical test kits conforming to these methods are available commercially in ranges from 80 to 1,000 mg/L (ppm) chemical oxygen demand. It is the user's responsibility to ensure the validity of these test methods for their specific samples and matrices.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. For specific hazard statements, see Sections 9 and 12.

定价： 0元

This specification covers steel tubes, carbon and carbon manganese, fusion welded, for boiler, superheater, heat exchanger and condenser application. After welding, all tubes shall be heat treated and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace. The steel shall conform to the required chemical compositions. The tensile and hardness test requirements to all tube prior to cutting are presented. Mechanical testing requirements indicates that, one flattening test shall be made on specimens from each of two tubes from each lot or fraction thereof, one flange test shall be made on specimens from each of two tubes from each lot or fraction thereof, one crush test shall be made on specimens from each of two tubes from each lot or fraction thereof, and one reverse flattening test shall be made on each 1500 ft [450 m] of finished tubing. Finally, each tube shall be subjected to either the hydrostatic or the non-destructive electric test.1.1 This specification covers minimum wall thickness welded tubes made from carbon and carbon manganese steels listed in Table 1, with various grades intended for use in boiler, superheater, heat exchanger, or condenser applications.TABLE 1 Chemical Requirements, Composition, %Element Grade ALow CarbonSteel Grade CMedium CarbonSteel Grade DCarbon ManganeseSteelCarbon 0.06–0.18 0.30 max 0.27 maxManganese 0.27–0.63 0.80 max 1.00–1.50Phosphorus 0.035 max 0.035 max 0.030 maxSulfur 0.035 max 0.035 max 0.015 maxSilicon No Requirement No Requirement 0.10 min1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/4 to 5 in. [6.3 to 127 mm] in outside diameter and 0.015 to 0.375 in. [0.4 to 9.5 mm], inclusive, in wall thickness. Tubing having other dimensions may be furnished provided such tubes comply with all other requirements of this specification.1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of the specification is specified in the order.1.5 Optional supplementary requirements are provided and when desired, shall be so stated on the purchase order.1.6 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 requirements prior to use.

定价： 0元

This specification covers high strength quenched and tempered alloy steel plates for fusion welded pressure vessels. The steel materials shall be killed and shall conform to the fine austenitic grain size requirement. The steel specimens shall undergo heat analysis and product analysis and shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, and zirconium. Tension tests shall be performed wherein the steel materials shall conform to the required values of tensile strength, yield strength and elongation. The steel materials shall also undergo transverse Charpy V-notch impact test and shall conform to the required value of the lateral expansion opposite the notch.1.1 This specification covers high-strength quenched and tempered alloy steel plates intended for use in fusion welded pressure vessels.1.2 Plates furnished under this specification are available in three classes having different strength levels as follows:1.3 The thickness of plates under this specification is limited to a maximum of 2 in. [50 mm].1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other without combining values from the two systems.

定价： 0元

This specification covers the standard for low-carbon manganese-molybdenum-columbium alloy steel plates for piping components and welded pressure vessels. Different alloy steel classes are covered such as Class 1, 2, 3, and 4. The steel shall be killed and shall conform to the fine austenitic grain size requirement. As-rolled plates shall undergo precipitation heat treatment, quenching, or tempering. Heat and product analyses shall be performed on the steel and shall conform to the prescribed chemical composition in carbon, manganese, phosphorus, sulfur, silicon, columbium, molybdenum, and copper. Tensile test and notch-toughness test shall be done on the material and shall conform to the required yield strength, tensile strength, and elongation.1.1 This specification covers low-carbon manganese-molybdenum-columbium alloy steel plates for piping components and welded pressure vessels.1.2 Four different classes are covered, which provide various tensile strength properties. A Charpy V-notch energy absorption requirement of 20 ft·lbf [27J] at −50°F [−45°C] is specified for all grades.1.2.1 Classes 1 and 2 provide minimum yield strength levels of 65 ksi [450 MPa] and 70 ksi [485 MPa] respectively. Both classes can be provided in the as-rolled condition or in the quenched-and-tempered condition.1.2.2 Class 3 provides a minimum yield strength level of 75 ksi [515 MPa]. This grade can be provided in the as-rolled and precipitation heat-treated condition or in the quenched-and-tempered condition.1.2.3 Class 4 provides a yield strength level of 80 ksi [550 MPa] in the as-rolled and precipitation heat-treated condition.1.3 Current practice limits plate thickness furnished under this specification. The individual manufacturer should be consulted on size and thickness limitations.1.4 Welding procedures are of fundamental importance and must be such as not to adversely affect the properties of the material, especially in the heat-affected zone. It is presupposed that welding procedures will be suitable for the materials being welded.1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

定价： 0元

1.1 This specification covers hot-rolled, high-strength, low-alloy steel plate with improved notch toughness in the as-rolled condition. 1.2 The maximum thickness available is 2 1/2 in. [65 mm]. 1.3 When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability. 1.4 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

定价： 0元

定价： 191元

定价： 191元

定价： 498元

定价： 498元

定价： 329元