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ASTM A514 is a specification for 100 kilopounds-per-square-inch-yield, low-alloy, quenched-and-tempered steel intended for structural applications and is typically known in the industry as USS (United States Steel) nomenclature T1®, regardless of the manufacturer. Each grade has a unique chemistry and may differ in the maximum thickness to which it is rolled, from 1-1⁄4 in. The material thickness affects the mechanical properties. or less must have 110-KSI to 130-KSI tensile strength, 100-KSI minimum yield strength, and 18 percent elongation. thick, the mechanical properties are 100-KSI to 130-KSI tensile strength, 90-KSI minimum yield strength, and 16 percent elongation.

One of the reasons for the difference in properties among these thicknesses is the quenching.

You should not use filler metals that deposit weld metal with diffusible hydrogen content greater than 8 ml per 100 grams of deposited weld metal.

Typically, this material is used for structural applications.When joining A514 to other low-alloy steels or carbon steels of lower strength, use a filler metal with strength that meets the lower-strength base material’s properties.For example, when welding ASTM A36 to A514, use a 70-KSI-tensile-strength electrode to match the lower-strength material.Don’t focus solely on strength; keep the hydrogen cracking risk in mind.Even though A514 is readily weldable, excessive preheat and interpass temperatures and welding heat input can affect the alloy’s chemical properties.Typical applications are backhoe buckets and other wear components in earthmoving equipment.A primary concern is filler metal hydrogen content.In addition to implementing lean work flow practices—better, faster transportation and processing and minimal inventory—many companies turn to the use of higher-strength, lighter-weight materials to reduce costs and improve welding productivity.ASTM A514 and A514M-05 high-strength, low-alloy, quenched-and-tempered steels are among these materials.Jedino kum njegov, koji je i nastavio da vodi cvećaru, mogao je da mu bude oslonac. Sledeće jutro, žena, koja je dolazila svaki dan da mu kuva i pospremi kuću, pronašla ga je na podu, krvavog i mrtvog, vezanog za stolicu. On je nekoga pustio u kuću, videlo se da nije provaljena, pila se kafa i onda su krvnici krenuli u ostvarenje svog sumanutog cilja. Njegova fotka stoji na zidu u cvećari, baš onakav kakvog ga pamtim. Taman je počeo malo da se oporavlja, prodao kuću za koju nije dobio novac, već samo neku malu kaparu, što mi je rekao par dana pre kobnog dana, počeo stvari da postavlja na svoje mesto, desilo se ono što niko ne može ni danas da svhati. Ja odlazim na pijacu, prolazim pored cvećare, devojka koja je tada radila kod njega plače, pokazuje mi rukom da dodjem, ja se odsekla, prilazim i ne smem da pitam šta je. Pretresali su kuću, usput njega tukli da prizna gde su pare, ali, pare nije imao, što mu ovi nisu poverovali. Ubicu su pronašli, pa ga pustili, što je on iskoristio i pobegao, medjutim, ponovo su ga uhvatili i sada robija. Malo je za oduzet život čoveku, koji je izgovorio pogrešnu reč!

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  1. Welding ASTM A514 or A514M-05 steel? Panduan untuk welding High strenth steel Quenched Tempered material untuk Offshore Structure novembri Before you do.

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