DESIGN GUIDELINES FOR STAINLESS STEEL IN PIPING …
the American Iron and Steel Institute (AISI), those most commonly used in piping systems are the austenitic alloys represented by AISI Types 304, 304L, 316 and 316L. The …
aisi 304l
The "L" in 304L can be interpreted as meaning extra-low carbon. The Chemical Composition of SS 304L is S 0.030, N 0.10, C 0.030, Cr 18.00/20.00, Mn 2.00, Ni 8.00/12.00, P 0.045 and Si zero.seventy …
304 Stainless Steel Properties: SS304 Composition, Density, etc.
AISI 304 stainless steel (UNS S30400) is the most commonly used material in stainless steels, and is usually purchased in an annealed or cold worked state. Because SS304 contains 18% chromium (Cr) and 8% nickel (Ni), it's also known as 18/8 stainless steel. Type 304 has good processability, weldability, corrosion resistance, heat resistance ...
Tensile and compressive properties of AISI 304L …
The chemical composition of the investigated material (AISI 304L stainless steel) is given in Table 1.The sample subjected to ECAP was prepared from a rod of Ø 8 mm diameter which was annealed at 1150 C for 2 h. Processing by ECAP was per-formed under a plunge speed of 9–10 mm/s at 700 C using a die with an angle.
Some aspects of thermomechanical fatigue of AISI 304L
Thermomechanical fatigue (TMF) tests on the austenitic stainless steel AISI 304L have been conducted under true' plastic-strain control in vacuum. This report considers the damage occurring during TMF loading. It is shown how the temperature interval and the phasing (in phase, out-of-phase) determine the mechanical response …
Tailoring the strength-ductility balance of a commercial
The sequential twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) effects were induced in a commercial AISI 304L stainless steel by tailoring the average austenite grain size (via thermomechanical processing of cold rolling and reversion/recrystallization annealing), leading to a combination of high yield stress …
AISI 304 Stainless Steel: A Complete Guide
AISI 304 – industrially denoted as 18/8, is an austenitic chromium-nickel stainless steel. The tag of AISI on it stands for (American Iron and Steel Institute), identifying its commercial availability of stainless steel or chromium steel. AISI 304 stainless steel composition mainly consists of 18% chromium and 8% nickel, and other stainless ...
Aisi 431 بادوام قابل تنظیم
AISI 431 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. 431 is the AISI designation for this material. S43100 is the UNS number. Additionally, the British Standard (BS) designation is 431S29. It can have a moderately high tensile strength among the wrought martensitic stainless steels in
Fatigue and Corrosion Fatigue Behaviour of Brazed Stainless …
First results of tensile and fatigue tests of the brazed AISI 304L/BAu-4 joints in the as-received condition and after pre-corrosions, obtained by means of the digital image correlation (DIC) technique, were published in earlier studies by the authors [8,24,25]. Parts of the fractographic analyses were used for the current study to compare ...
Phase Composition of Austenitic Stainless Steels in …
In contradiction to AISI 304L/308L steels, this steel does not undergo deformation-induced martensitic transformation, which makes it important for applications where nonmagnetic corrosion-resistant steels are required [9,10]. These advantages initiate investigations in the field of additive manufacturing of AISI 316L-type austenitic stainless ...
A PRACTICAL GUIDE TO THE USE OF NICKEL …
allows a stress of 17,500 psi for Type 304L plate or seamless pipe or tubes. For welded pipe or tubes, the maximum allowable stress is 16,000 psi for Type 304 and 14,900 psi for Type 304L. Physical Properties The specific heat and thermal expansion charac-teristics of Type 304 stainless steel are given in Figures 4 and 5. Emissivity data are ...
AISI 304 vs AISI 304L Stainless Steel
Differences Between AISI 304 and AISI304L Steel. The main difference between these two grades of steel lies in their respective carbon contents; AISI304 contains more carbon than its low-carbon counterpart AISI304L. The increased amount of carbon in regular ASI304 gives it greater strength and hardness than ASI304L but also makes it …
AISI 304L Stainless Steel / Alloy 304L / UNS …
Alloy 304L is an extra low carbon version of type 304 chrome-nickel austenitic alloy. It is typically used for welded applications that must resist intergranular corrosion. It is strong, …
All About 304 Stainless Steel (Properties, Strength, …
Type 304 steel is part of the 3xx stainless steels or those alloys which are blended with chromium and nickel. Below is a chemical breakdown of 304 steel: …
(PDF) Flow and fracture of austenitic stainless steels at …
In this paper, we have characterized the microstructural evolution and the plastic flow and fracture behaviours of AISI 304L and AISI 316LN stainless steel grades at liquid nitrogen temperature ...
Effect of bonding temperature on the microstructure and …
UNS S32750 super duplex stainless steel and AISI 304 stainless steel were transient liquid phase (TLP) bonded using BNi-2 at a bonding temperature of 1050 °C and for two bonding times of 10 and 45 …
AISI 304 vs 304L Stainless Steel Properties (UNS …
AISI 304 and 304L (SS304L) are austenitic stainless steels, and also known as 18/8 stainless steel. This article will introduce the differences between 304 and 304L stainless steel (304 vs 304L) from chemical composition, mechanical properties, corrosion resistance and weldability. AISI 304L stainless steel is an …
Characterisation of the corrosion fatigue behaviour of brazed AISI 304L …
In the present study, brazed AISI 304L/BNi-2 joints were cyclically tested in the synthetic exhaust gas condensate K2.2, using a corrosion cell, as well as in air after pre-corrosion acc. to VDA 230–214 with ageing durations of up to 6 weeks. A significant reduction of the fatigue strength at 2 × 106 cycles down to 43% was determined for ...
Fatigue life enhancement of TIG-welded 304L stainless steels …
Shot peening is a cold working process that leads to changes of residual stress in the surface layer and the microstructure. In this paper, we studied the effect of the stress ratio and shot peening on the fatigue life of AISI 304L austenitic stainless steel welded using a fully manual gas tungsten arc welding process (GTAW). The specimens …
Mechanical Properties And Microstructure Evolution in Arc
The mechanical properties and microstructures of dissimilar arc stud weldments of AISI 316L/AISI 1020 and AISI 304/AISI 1020 were investigated. Welding currents of 400, 600 and 800A and welding times of 0.2, 0.25, 0.3, 0.35, 0.4 and 0.45 second were employed. Maximum torque strength of 77N m was registered with 600A …
304/304L Stainless Steel | McMaster-Carr
Choose from over 175 304/304L stainless steel products in a wide range of sizes. Includes material certificates and CAD models. In stock and ready to ship.
Corrosion mechanisms of austenitic stainless steels in …
A carbon content below 0.03% or better below 0.02%, and optimized quench annealing temperatures and heating times [7] prevent from intergranular corrosion resulting from the chromium depleted zones due to a steel sensitization after a thermal treatment or by welding. The effect of carbon on the behaviour of AISI 304L steel is, for instance, …
Deformation mechanisms and enhanced mechanical properties of 304L
A high-strength-ductility 304L stainless steel with heterogeneous lamella structure (HLS) was fabricated by cold rolling and subsequent partial recrystallization. The HLS was composed of lamellar recrystallized grains (mean grain size of ∼4.1 μm) embedded in a hard matrix of ultra-fine grains (mean grain size of ∼0.65 μm) and …
Phase Composition of Austenitic Stainless Steels in …
Creq/Nieq ratio for AISI 304, 304L, and 308L steels used for additive manufacturing and described in recent articles. The compositions given by AISI standard are also presented in Table1. Values of Creq/Nieq ratio for this group of AISI 304/308 steels are near the upper border of AF or in the range of FA solidification mode (Creq/Nieq ˇ1.4 ...
(PDF) ANALYSIS OF DISSIMILAR WELDING OF AUSTENITIC
In another study, Osoba et al. analyzed the effect of heat treatment on the dissimilar metal welding of AISI 304L austenitic stainless steel and AISI 1005 low-carbon ferritic steel using ER309L ...
Effect of Boronizing on Operating Stability of Steel AISI 304L …
The effect of solid boronizing at 950°C for 2 and 4 h on the phase composition, microstructure, hardness and abrasive wear of steel AISI 304L is studied under the impact of a flow of hard particles. The boronized steel is shown to consist of three layers (metal boride, porous layer and matrix) from the external surface to the center. The …
AISI 304 Stainless Steel Properties: Tensile Yield …
AISI 304 stainless steel (UNS S30400) is the most widely used stainless steel, containing 18-20% Cr and 8-10.5% Ni, and also known as 18-8 stainless steel. SS 304 is non …
Experimental Analysis of the Mechanical Properties of
The yield strength and tensile strength of 304L stainless steel at − 183 °C were 413 MPa and 1547 MPa, respectively, as determined by Kim (Kim et al., 2012). Iguchim (Iguchi et al., 2013 ) studied the mechanical properties of 304 stainless steel welded joint components at low temperatures (-221 °C) and observed that the yield strength and ...
استیل 304 چیست ؟ معرفی جامع استیل ۳۰۴ نگیر+"کاربردهای استیل 304" فنی و
خصوصیات و ویژگی ها و کاربردها انواع استیل مانند 304l و 304h در صنایع مختلف و معایب، مزایا و کاربردهای استیل 304 در این مقاله ... نکته ی قابل توجهی که همواره باید به آن اشاره نمود اینکه ورق استیل ۳۰۴ l ...
Effect of Solution Annealing Temperature on the Microstructure …
The microstructure o f the analyzed AISI 304L as-received state is shown Figure 2. The structure consists of austenite grains; and reveals a typical cold worked austenitic stee l structure showing ...
Tig Welding of Dissimilar Steel: A Review | SpringerLink
In a view to reduce or remove the problem of non- uniform hardness distribution encountered across the fusion zone, Osoba et al. analyzed dissimilar welding of AISI 304L Austenitic stainless steel to AISI 1005 low carbon ferritic steel using the TIG welding technique. The result obtained showed that the micro-hardness profile in the FZ …
Sensitization of Austenitic Stainless Steels: Current …
Further, it is known that sensitization increases the susceptibility to grain boundary corrosion and hydrogen embrittlement (HE) or hydrogen-induced cracking. The researchers reported that loss of notched tensile strength (NTS) of AISI 304L steels. This loss in NTS has been correlated to hydrogen embrittlement . The sensitized steels …