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Hello all! I've just done an unsuccessful literature search for Invar36 alloy tensile props, in particular: Young's modulus Poisson's ratio at RT and -165 to -196°C I need them for fracture toughness calculations. I've currently got YS and UTS data but no stress-strain curves. Can anybody help...

Hi all! I would like to track down a definitive reference which states the difference between a flaw and a defect in the English language. I believe this originated in AWS somewhere. Can anybody help? Thanks

Hi everybody, I got a lab report about some cracks found on AISI 304 flanges after welding. One of the paragraph concerns 'DPI crack-like indications', does anyboduy know what DPI means? Thanks

Hi everybody, we're considering the possibility to weld internal build-up on 21/4Cr-1Mo plates using multiwire GMAW technique. AWS website (http://www.aws.org/wj/2003/06/040/) concentrates on improvements due to high productivity and low heat input. Other references just concentrate on...

I've found the answer in thread725-139524. In case anybody had some additional info, please reply. Thanks

Hi everybody, we are about to start with the fabrication of a 21/4Cr-1Mo pressure vessel for the petrochemical industry. Customer's technical specification gives acceptance criteria for delta-ferrite content in stainless steel overlay: the limits in PWHT condition are 3-10% for type 308 or 316...

Hi everybody, a colleague of mine asked me if, when A_N.° is an essential variable for welding procedure qualification and no filler metal is used, the molten base metal should be considered as weld metal and its chemical composition be determined in order to determine A_N.° I believe that...

EdStainless, no, the joint will never see water.

I'm reviewing a project which includes fillet welding of two plates made of carbon steel and stainless steel (Type 304). The joint will not be loaded (it's a seal joint). It will be exposed to air first and then completely immersed in concrete. Is this environment harmful to a c-steel/stainless...

Hi everybody; has anyone experienced cladding of Al-alloys sheets with Ni-based alloys (Inconel)? In case it was possible, which cladding method would be better? I guess it should be done by roll cladding.

Hi everybody; I got this from a friend: has anyone experienced cladding of Al-alloys sheets with Ni-based alloys (Inconel)? In case it was possible, which cladding method would be better? I guess it should be done by roll cladding.

Hi everybody, I need tensile properties (yield point 0.2% and ultimate tensile strength) data for ASME SA 387 Gr.22 Cl.2 (21/4Cr, 1Mo) steel. In particular I need experimental data (not ASME II-D design data) for temperatures within 840-1110°F (450-600°C). Thanks

I am dealing with bending of a plate made of SA542D Cl.4 (21/4Cr-Mo-V), tempered at 1250°F (680°C), to make a cilyndrical shell. The late is 51/2in. (138mm) thick and we cannot roll at a low temperatures such as 360-400°F (180-200°C) since the needed loads would be too high for our machinery...

Hi everybody, I need to know the typical hardness values of 'as cast'Al alloy: AlSi5Cu3Mg (5% Si, 3% Cu, 0.30% Mg), or a good reference to find them on the net. Any suggestion?

Thanks Metengr! I got the same answer from a colleague of mine (I'm not familiar with ASME II-D)

Hi, anybody knows a good reference to find physical and mechanical properties of low-alloy steel ASME SA 350 LF5 (1-2% Ni). I guess they won't differ too much from those of any C-Mn steel. Thanks

Hi, I was asked this question by a friend who works with gears. They use to make gears with 20CrMn steel (carburized+quenched) and their usual suppliers are offering 20CrMnTi steel as an alternative. What is the role of Ti in this alloy? How do material properties change? Would there be any...

Hello, I am reviewing some technical specifications which call out for 316LNG material. As far as I know, NG stands for 'Nuclear Grade'. I couldn't find this acronym in ASME sections II material specifications. A colleague of mine told me that, if special requirements for 316LNG exist, these...

I'm reviewing some design documents which include plates made of 316L NG stainless steel. I was able to find out that 'NG' stays for Nuclear Grade but couldn't find more complete info. Does this 'NG' influence the material's chemical composition, mechanical properties or others? What's the...

I'm reviewing some documents with a reference to the chemical composition and mechanical properties of SA 508 Class 2 and 3 according to ASME II-A 1971 Ed. I can't find this edition of ASME II at my company, can anybody please give me the needed info? (I just need chemical composition and...