 resistance.
The physical properties of alloys 321 and 347 are quite similar, but in fact, they can be regarded as the same. The values listed in the table are applicable to both alloys.If properly annealed, alloy 321 and 347 stainless steels mainly contain austenite and titanium carbide or niobium carbide. A small amount of ferrite may or may not appear in the microstructure. A small amount of sigma phase may be formed if exposed to temperatures between 1000 ° F and 1500 ° F (593 ° c-816 ° C) for a long time.Heat treatment does not harden the stable alloy 321 and 347 stainless steels.The total heat transfer coefficient of metal depends not only on the thermal conductivity of metal, but also on other factors. In most cases, the heat dissipation coefficient of the film, rust scale and surface condition of the metal. Stainless steel keeps the surface clean, so it has better heat transfer than other metals with higher thermal conductivity.
Stable alloys 321 and 347 are generally not magnetic. In the annealed state, its magnetic conductivity is less than 1.02. The permeability changes with composition and increases with cold working. The permeability of weld with ferrite will be higher.
Typical mechanical properties of alloys 321 and 347 at high temperatures are shown in the table below. At 1000 ° F (538 ° C) and above, the strength of these stabilized alloys is significantly higher than that of the unstable 304 alloy.
Alloys 321h and 347h (uns32109 and s34700) with high carbon content have higher strength at temperatures above 1000 ° F (537 ° C). The ASME maximum allowable design stress data of alloy 347h show that the strength of this grade is higher than that of alloy 347 with low carbon content. Alloy 321h is not permitted for Section VIII applications and is limited to temperatures of 800 ° F (427 ° C) or less for section III applications.
Typical creep and stress rupture data for alloy 321 and 347 stainless steels are shown in the table below. The creep and stress rupture strength of the stabilized alloy is higher than that of the unstable alloy 304 and 304L at high temperature. These superior properties of alloy 321 and 347 make it suitable for high temperature service pressure parts, such as our common boilers and pressure vessels.
The impact toughness of 321 and 347 is very good both indoors and in the environment below zero.
In fact, the fatigue strength of each metal is affected by corrosion environment, surface finish, product morphology and average stress. For this reason, it is not possible to use an exact number to represent the fatigue strength values under all operating conditions. The fatigue limit of alloy 321 and 347 is about 35% of its tensile strength.
Austenitic stainless steel is considered to be the most easily welded alloy steel and can be welded with all fusion materials, as well as resistance welding.
Two factors should be considered in the production of austenitic stainless steel welding joints: 1) to maintain its corrosion resistance, 2) to avoid cracking.
Attention must be paid to maintaining the stabilizing elements in alloys 321 and 347 during welding. Alloy 321 is more likely to lose titanium, while alloy 347 is more likely to lose coltan. Carbon in oil and other sources of pollution and nitrogen in the air need to be avoided. Therefore, it is necessary to keep clean and protect inert gas when welding stable alloy or unstable alloy.
When welding the metal with austenite structure, it is easy to split during operation. Due to this reason, a small amount of ferrite is needed to reduce the crack sensitivity of alloy 321 and 347 to the minimum. The stainless steel containing coltan is more prone to hot cracking than the stainless steel containing titanium.
The matching filler metal can be used for welding of alloy 321 and 347. The matching filler metal of alloy 347 can also be used for welding of alloy 321.
These stable alloys can be added to other stainless steels or carbon steels. Alloy 309 (23% cr-13.5% Ni) or nickel based filler metals can be used for this purpose.
Cramping 5 weeks after LEEP?
I don't have a surgery date yet, I see the onocologist on the 27th of this month. I did see my doctor yesterday about some lymph swelling in my groin but we think it's attributed to the cold I caught from my kids.
I guess a little history might be in order: Had my pap in October, showed ASCUS. Doc did a colpo and a biopsy and results showed CIN II. Was referred to a DO at an OB/GYN clinic who did a LEEP. Results of it showed aedenocarcinoma in situ. The DO has since referred me to a GYN ONO for a discussion about a hyster but the DO will perform it.
My question is this: I have had minor cramping since my LEEP 5 weeks ago. I know it is normal for the duration of the healing time, 3 weeks or so I heard, but still at 5 weeks? She kind of brushed it off, saying cramping was normal after a LEEP, which I understand, but when I asked her if it was normal at 5 weeks she took a look at my cervix, saying everything looked awesome and said everything was fine. She did offer me pain medication however! It isn't bad enough for that, I told her. If it bothers me too much I just pop a few Ibuprophin. Anyway, all you knowledgable ladies who have had a LEEP, how long did you cramp? I realize we are all different but I am just looking for a rough estimate. Thanks ladies!
I had LEEP/cone surgeries and on both occasions my cramping was over after about 1 week max...UNTIL my period was coming, and then the cramps were worse than any I'd ever had. They stopped again when my period started and never returned (until the next LEEP/cone)! Ask your gyn/onc when you see him/her.
I never had a LEEP but had two cones. It's been a long time and memory sure does fade, but I think it was no more than a week or so for me also.
I'm with chicklet on this one. In fact, I had very little cramping immediately following the LEEP. After the first week I had very strong ovarian pain, and the following week, worse than usual menstrual cramps. These cramps did not feel like my "normal" cramps either.
I felt a lot of cramping with my LEEP. I still feel bloated from it and I had my LEEP Jan 2. I would still check with your doctor about it.
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» Cramping not even 2 weeks later??
» Cramping at 5 weeks?
» Cramping at seven weeks....In the case of the two healings, both are quite long, with extended dialogue among several different characters. Both also concern people of means: the rich woman of Shunem in 4:8-37 and Naaman, “a great man and highly regarded … a mighty warrior” in 5:1. While both individuals have means, they also have need. The woman lacks for a son (4:14); Naaman, despite his military prowess, has skin disease (5:1). A crucial difference between the two accounts is that Naaman is a foreigner: a Syrian in the military employ of the king of Aram.
Naaman’s skin condition needs brief discussion. Three observations are important: (1) First, the skin disease in question has traditionally been referred to as “leprosy,” but the disease designated by Hebrew?ara?at (in 5:1 it is a verbal form of the root?-r-?) is almost certainly not what we call leprosy today (Hansen’s disease) — or at least it isn’t only that. Now what, exactly,?ara?at is, is unfortunately not altogether clear, but, (2) what is clear is that this is the same malady discussed at length in Leviticus 13-14. (3) Finally, the condition that afflicts Naaman is at some odds with the note that “through him the LORD had given victory to Aram” (2 Kings 5:1) insofar as?ara?at in Leviticus renders a person (or thing) in a state of ritual impurity that, if unchecked, could lead to long-term, perhaps even permanent separation of the person (or thing) from the community, from its worship, and therefore from God.
What, then, to make of this note in the text that the Lord had given victory to Aram through a foreign general who had a ritually impure skin disease? Each of the italicized bits are cause for exclamation points, not just a question mark. Is the divine agency at work through Naaman one that he is aware of or does it take place unbeknownst to him — part of God’s general providence and work in the world, outside Israel and the Church, that is, as much as inside? Did it take place before his skin disease or even after its appearance? We do not know because we are not told. All we know is that a young Israelite slave girl works in Naaman’s household for his wife (2 Kings 5:2). She notices the skin disease at some point — as the Leviticus material suggests she should, given the seriousness of the condition and what it means to those in contact with one afflicted by it — and she tells her mistress about a prophet in Samaria who could cure Naaman (v. 3). Naaman takes it up with his boss,