定价： 0元 / 折扣价： 0 元 加购物车

定价： 689元 / 折扣价： 586 元

定价： 605元 / 折扣价： 515 元

定价： 689元 / 折扣价： 586 元 加购物车

定价： 819元 / 折扣价： 697 元 加购物车

定价： 605元 / 折扣价： 515 元 加购物车

定价： 260元 / 折扣价： 221 元

定价： 481元 / 折扣价： 409 元 加购物车

定价： 0元 / 折扣价： 0 元 加购物车

定价： 481元 / 折扣价： 409 元 加购物车

This specification covers three grades, Grades A, B, and C, of carbon-manganese-silicon steel plates intended primarily for service in welded pressure vessels where improved low temperature notch toughness is important. The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements. The steel shall be killed and the plates shall undergo heat treatment. Tensile properties such as tensile strength, yield strength and elongation shall be determined by subjecting the steel plates to a tension test.1.1 This specification2 covers three grades of carbon-manganese-silicon steel plates intended primarily for service in welded pressure vessels where improved low temperature notch toughness is important.1.2 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements.1.3 For plates produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A20/A20M apply.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.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

定价： 345元 / 折扣价： 294 元 加购物车

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 / 折扣价： 0 元

This specification covers manganese-silicon carbon steel plates for use in welded boilers and other pressure vessels. Plates under this specification are produced in two grades. The steel shall be killed and shall conform to the fine austenitic grain size requirement. Tension test shall be made to conform to the requirements specified.1.1 This specification2 covers manganese-silicon carbon steel plates for use in welded boilers and other pressure vessels.1.2 Plates under this specification are produced in two grades. The specified minimum yield strength decreases for thicknesses over 1 in. [25 mm].1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements.1.4 For plates produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A20/A20M apply.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.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels. According to their strength levels, the plates are available in four grades: Grades A, B, C, and D. The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements. The steel shall be killed and shall conform to fine grain size requirements. The plates shall be subjected to tension test to determine the tensile strength, yield strength, and elongation.1.1 This specification2 covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels.1.2 Plates under this specification are available in four grades having different strength levels as follows:Grade Tensile Strength,ksi [MPa] TypeA 75–95 [515–655]  manganese-molybdenumB 80–100 [550–690] manganese-molybdenumC 80–100 [550–690] manganese-molybdenum-nickelD 80–100 [550–690] manganese-molybdenum-nickel1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements.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.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车