1.1 This standard outlines a selection of SI units, with multiples and submultiples, for general use in building design and construction. 1.2 In addition, rules and recommendations are given for the presentation of SI units and symbols, and for numerical values shown in conjunction with SI. 1.3 A selection of conversion factors appropriate for use within the construction community is given in Appendix X1. 1.4 The SI units included in this document comply with and augment the ASTM Standard for Metric Practice E380 - 82 and are generally consistent with International Standards Organization (ISO) 1000 - 1981 SI Units and Recommendations for the Use of Their Multiples and Certain Other Units, and the ISO/31 Series of Standards, Quantities, and Units of SI.

定价： 0元 / 折扣价： 0 元

This specification covers electric fusion-welded nickel-chromium-cobalt-molybdenum alloy UNS N06617, nickel-iron-chromium-silicon alloys UNS N08330 and UNS N08332, Ni-Cr-Fe-Al Alloy (UNS N06603), Ni-Cr-Fe Alloy UNS N06025, and Ni-Cr-Fe-Si Alloy UNS N06045 pipe intended for heat resisting applications and general corrosive service. Two classes of pipes are covered: Class 1 and Class 2. The joints shall be double-welded, full-penetration welds. The weld shall be made either manually or automatically by an electric process involving the deposition of filler metal. Weld defects shall be repaired by removal to sound metal and rewelding. All pipe shall be furnished in the annealed condition. The material shall conform to the composition limits specified. Transverse tension test, transverse guided-bend weld test, pressure test, and chemical analysis shall be made to conform to the requirements specified.1.1 This specification covers electric fusion-welded nickel-chromium-cobalt-molybdenum alloy UNS N06617, nickel-iron-chromium-silicon alloys UNS N08330 and UNS N08332, Ni-Cr-Fe-Al Alloy (UNS N06603), Ni-Cr-Fe Alloy UNS N06025, and Ni-Cr-Fe-Si Alloy UNS N06045 pipe intended for heat resisting applications and general corrosive service.1.2 This specification covers pipe in sizes 3 in. (76.2 mm) nominal diameter and larger and possessing a minimum wall thickness of 0.083 in. (2.11 mm).1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.4 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.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

Careful use of this practice can yield calibrated z-magnifications traceable to the SI unit of length with uncertainties (k = 2) of approximately 7 % over height ranges of approximately 1 nm.1.1 This practice covers a measurement procedure to calibrate the z-scale of an atomic force microscope using Si(111) monatomic step height specimens.1.2 Applications This procedure is applicable either in ambient or vacuum condition when the atomic force microscope (AFM) is operated at its highest levels of z-magnification, that is, in the nanometer and sub-nanometer ranges of z-displacement. These ranges of measurement are required when the AFM is used to measure the surfaces of semiconductors, optical surfaces, and other high technology components.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 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 / 折扣价： 0 元

定价： 428元 / 折扣价： 381 元 加购物车

定价： 无文本 / 折扣价： 0 元

本标准规定了Fe-Cr-B-Si系自熔合金粉的要求、试验方法、检验规则及标志、包装、运输、贮存、质量证明书和合同（或订货单）内容。
本标准适用于氧-乙炔火焰喷焊、等离子喷焊、激光熔覆用Fe-Cr-B-Si系自熔合金粉。

定价： 21元 / 折扣价： 18 元 加购物车

本标准规定了Ni-Cr-B-Si系自熔合金粉的要求、试验方法、检验规则及标志、包装、运输、贮存、质量证明书和合同（或订货单）内容。
本标准适用于氧-乙炔喷焊、感应重熔、等离子堆焊和激光熔覆用Ni-Cr-B-Si系自熔合金粉。

定价： 21元 / 折扣价： 18 元 加购物车

定价： 19元 / 折扣价： 17 元 加购物车

定价： 19元 / 折扣价： 17 元 加购物车

定价： 19元 / 折扣价： 17 元 加购物车

本文件规定了用于选区激光熔融（SLM）的TiB2纳米陶瓷强化Al-Si系铝合金粉末（以下简称：陶铝粉末）的要求。本文件适用于民用飞机SLM用陶铝粉末产品设计与制造。

定价： 0元 / 折扣价： 0 元