The 316L stainless steel pipe

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316L is a stainless steel grades, said the main containing Cr, Ni, Mo digital percentage probably contains (not accurate, probably only), 316L is the material corresponding US label, Sus 316L is corresponding to the Japanese label. Standard of our country as 022Cr17Ni12Mo2. (new standard) of old brand 00Cr17Ni14Mo2

316L - C: chemical composition of carbon less than 0.030 silicon Si: less than or equal to 1

Manganese: less than 2 Mn

316L S: less than 0.030 sulfur

P: less than 0.035 P

Chrome Cr:16.00 ~ 18

Ni Ni:12.00 ~ 16

Mo Mo:2.00 ~ 3

Corrosion resistance

316L because of its excellent corrosion resistance is widely used in chemical industry, 316L is belong to 18-8 type austenitic stainless steel are derived, add the Mo element 2 ~ 3%. On the basis of 316L, and derived a lot of steel, such as adding a small amount of Ti derived after 316Ti, add a small amount of N derived after 316N, increased Ni, Mo content derived 317L.

The market of the existing 316L most is in accordance with the American Standard to production. Because of cost considerations, steel mills generally the Ni content of the products as much as possible to lower limit on. American standard regulation, Ni of 316L content for 10 ~ 14% day marks the regulation, Ni of 316L content for 12 ~ 15%. According to the minimum standard, American Standard and Japanese standard 2% of the difference in the Ni content, reflected in the price is quite huge, so customers in the purchase of 316L products still need to see, the product is according to ASTM or JIS standard.

Mo 316L content makes this kind of steel has excellent resistance to pitting corrosion, can be safely used in containing Cl - and halogen ion environment. As the main application of 316L is its chemical properties, surface inspection of steel on the requirements of 316L was slightly lower (relative to 304), higher on the surface of the customer must strengthen the surface inspection dynamics.

316L - Mechanical Properties of tensile strength B (MPa): 480

The yield strength of sigma 0.2 (MPa): 177

Elongation of 5 (%): 40

Section shrinkage (%): = 60 PSI

Hardness: = 187HB; = 90HRB; = 200HV

Hardness is less than or equal to 187HB = 90HRB = 200HV

Density: 7.98g/cm3;

Specific heat ratio (20 DEG C): 0.502J/ (g*K)

Thermal conductivity (W/ (m*K))

100 C 300 C 500 C

15.1 18.4 20.9

316L - heat treatment solution 1010 ~ 1150 DEG C fast cooling.

316L - metallographic organization characteristics for austenitic.

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Q:304L stainless steel pipe can withstand 0.1MPA?
If you want to know how much pressure the steel pipe is under, you need to know the type of the stainless steel pipe.Pressure calculation formula of stainless steel management: pressure MPA=, tensile strength X40%X2X, wall thickness / outer diameterBut from my experience, generally speaking, stainless steel tubes can withstand 0. 1MPA. Unless it is used very thin stainless steel tube wall decoration.
Q:304 stainless steel has several advantages, a few big advantages, the more concrete the better
304 stainless steel advantages:1. environmental sanitation: put an end to red water, blue green water, and hidden water problems, no peculiar smell, no harmful substances, keep the water quality pure, lead free, harmless to human health.2., wear resistance: beautiful surface, clean and bright, long lasting, no scratches, never rust, never break. 3., low temperature: kitchen, bathroom, stainless steel water pipe, faucet angle valve will never break.4., thermal expansion and excellent insulation performance: stainless steel tube has expansion, cold contraction, slow insulation performance.5. authority certification: stainless steel metal element precipitation than WHO and European drinking water act standard value of 5% is still lower.
Q:About stainless steel welding deformation
In fact, the deformation of stainless steel and carbon steel caused little difference, but the deformation is greater than carbon steel, the treatment method is the same.(1) using smaller welding rod and smaller current.(2) correcting welding sequence;(3) before welding, clamp the weldment to avoid warping.(4) avoid excessive cooling or preheating of base metal.(5) the welding penetration is low.(6) reduce weld gap and reduce slotting degree.(7) pay attention to the welding size, not to make the welding bead too big.(8) pay attention to the fixed measures to prevent deformation.
Q:What is stainless steel decorative tube? What uses does it have?
For the steel to withstand the pressure to the hydraulic test to test its ability and quality, leakage, soaked or expansion for qualified does not occur at the prescribed pressure, some steel according to the requirement of standard or edge test, flaring test and flattening test.Seamless stainless steel tube, also called stainless steel seamless pipe, is made of ingot or solid tube blank by piercing, and then made by hot rolling, cold rolling or cold casting. Specifications for seamless steel tubes are expressed in millimeters of outer diameter * wall thickness.
Q:What's the difference between stainless steel decorative pipes and polished stainless steel pipes?
Stainless steel decorative tubes are mainly used for decoration, such as railings, staircases, hand guards, railings, windows and so on, the wall thickness is very thin,Polished stainless steel pipe is not the same, the industry can also be used, that is, just made out, some rough, not smooth, so polished under the smooth, according to customer needs.
Q:The difference between galvanized steel pipe and stainless steel pipe
Stainless steel pipe is a kind of hollow long strip round steel, mainly used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts. In addition, the bending and torsional strength of the same weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:The difference between stainless steel pipe and stainless steel composite pipe
Stainless steel composite pipe is made of stainless steel and carbon steel two kinds of metal materials with new materials nondestructive pressure synchronization into the compound, both stainless steel corrosion and excellent wear and beautiful appearance, good bending strength and impact resistance of carbon steel.
Q:What are the connecting methods of stainless steel pipes for indoor water pipes?
Card convex features: easy installation, the connection is not deformed inside and outside, belong to live connection, easy maintenance. Scope of application: cold water system, pipe direct drinking water system, water treatment equipment system. The installation is more suitable, mainly taking into account the replacement of the sealing ring later, the hot water system should be avoided as far as possible. The advantage of the connection is that the installation is simple, convenient and easy to maintain, and the sealing ring in the pipe needs replacing when aging, and the utility model is relatively simple and convenient, and the nut can be replaced as long as the nut is unscrewed. The disadvantage is that the applicable situation is single, in the hot water system sealing ring aging is more prominent, higher cost. Concealed piping and hot water systems are generally not recommended.
Q:Why pickling before cleaning stainless steel pipe oil?
On the premise of oxide, a good foundation for the formation of passive film is made, which makes the passivation film more compact and improves the passivation effect!
Q:Mirror stainless steel tube 60*60 how much is one meter?
Examples are stainless steel 63 round tubes, solid thickness 0.82 stainless steel tubes, single support 6 meters long, weight (63-0.82) *0.82*0.02491*6=7.62kg, a six meter long 63 round tube, thickness 0.82, theoretical weight is 7.62kg;

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