Seamless Stainless Steel Pipe Tube ASTM 204 for construction

Seamless Stainless Steel Pipe Tube ASTM 204 for construction

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 kg

Supply Capability:: 1000000 kg/month

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‍‍Description:

This type of steel pipe is safety, health, environmental protection, economy applicable, the successful development of thin wall of the pipe and new, reliable, simple and convenient connection method the with more other pipe irreplaceable advantages of stainless steel tube, the engineering application will be more and more, the use will become increasingly popular, a good prospect.

Feature:

. Good quality with reasonable price.

. Samples can be provided as your requirements

. Professional packing teams which keep every packing safely

. specialized in manufacturing,developing and marketing high quality stainless steel pipes

. Delivery time: According to your size and quantity or as the customer’s requests.

Specification:

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Name	Stainless steel 316 pipe price list
Standard	ASTM A554,ASTM A312
Material Grade	201,202,304,316,316L,430
Main Material	a) 201 (Ni0.8%-1%) b) 202 (Ni: 3.0%-4.0%) c) 304 (Ni: 8% Cr: 18%) d) 316 (Ni: 10% Cr: 18%)
Size Range	139mm-1600mm ETC.
Thickness	0.5-30mm
Length	6m or as customers' request
Tolerance	a) Outer Diameter: +/- 0.2mm
	b) Thickness: +/- 0.02mm
	c) Length: +/- 5mm
Surface	180G, 320G Satin/Hairline 400G, 600G Mirror finish
Application	handrail,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etc
Test	Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT
Chemical Composition of Material	Material Composition	201	202	304	316L	430
	C	≤0.15	≤0.15	≤0.08	≤0.035	≤0.12
	Si	≤1.00	≤1.00	≤1.00	≤1.00	≤1.00
	Mn	5.5-7.5	7.5-10	≤2.00	≤2.00	≤1.00
	P	≤0.06	≤0.06	≤0.045	≤0.045	≤0.040
	S	≤0.03	≤0.03	≤0.030	≤0.030	≤0.030
	Cr	13-15	14-17	18-20	16-18	16-18
	Ni	0.7-1.1	3.5-4.5	8-10.5	10-14
	Mo				2.0-3.0
Mechanical Property	Material Item		201	202	304	316
	Tensile Strength		≥535	≥520	≥520	≥520
	Yield Strength		≥245	≥205	≥205	≥205
	Extension		≥30%	≥30%	≥35%	≥35%
	Hardness (HV)		‍<105< p="">	<100< p="">	<90< p="">	<90< p="">

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Seamless Stainless Steel Pipe Tube ASTM 204 for construction

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Q: Explain the heat treatment effect of casting parts, forging parts and welding parts: 2 improve the crystal structure, enhance the formation and stability of spherical carbon crystal;Forgings are generally stress bearing members, and most of them are made of high strength medium carbon steel (alloy), which is formed by forging and fine crystalline. After the shell is annealed or quenched and tempered, the mechanical properties of the shell are more superior, and it has better strength and better elasticity;Welding materials.

Q: What is the ejection angle of the die casting (Tan Gang)?: Because after the wax, wax parts will have a slight contraction, which is good for demoulding. Many moulds don't do the ejection angleEspecially deep hole, and customers to discuss, generally take 0.3-1 degrees is enough

Q: What are the effects of stiffeners on castings, or on welded parts (for 2 tons or less), casting or weldments on stiffeners?: 4, the performance requirements of the steel: whether castings or welding parts, there may be quality defects, but the casting will generally be worse than the weldment.You should be able to make a choice in the end.

Q: Selection of hydraulic press is the casting parts and steel plate welding, how to choose?: Casting parts in one shape, the overall processing in this regard than steel plate welding better. The same price is much more expensive than steel. Large hydraulic presses seldom have casting parts.

Q: In theory, which is more expensive, forging parts or casting parts?: The structure of the casting is relatively flexible in design, and the modeling is easy to realize.

Q: Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you: The performance is too extensive, I think the following several people all fall into the erroneous zone directly, the performance includes a series of aspects:Mechanical properties: tensile strength, yield strength, elongation and contraction ratio of section and impact toughness after etc.

Q: Which surface is coarser for cast iron or cast steel castings? Why?: The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron.

Q: When there is no flaw detection for large casting parts, is there any crack inside?: Cracks are considered serious levels of defects and should be repaired

Q: Why should pig iron be used in casting?: Popular name is called pig iron, in fact, is a kind of cast iron without treatment, after casting, in iron elements to add other elements to improve casting performanceIt mainly improves the fluidity, reduces the melting point and reduces the shrinkage.Usually pure iron and cast iron at the eutectic point (about 4.7% carbon content) can be used for castingThere are many kinds of cast iron, usually grey cast iron, ductile iron and vermicular graphite iron......

Q: Lathe processing stainless steel casting parts to use what type of tool, the speed into the amount of how much tool angle: There is YW1 best, if not using YG6X, YG8 is ok!The speed should not be high, the greater the diameter, the lower the speed! For example, a diameter of 100 mm, speed is not greater than 80 rpm, each point is good!The main tool is the front angle to be larger, more than 6 degrees, and the groove should be wider and larger to reduce the cutting resistance! When the rear angle is properly reduced and the strength is increased, it is recommended to take 3 degrees.The main components are: spindle box, exchange gear box, feed box, slide box, tool post, tail frame, light bar, lead screw, bed, foot and cooling device.Spindle box: also known as the headstock, it is the main task of the rotary motion of the main motor came through the transmission mechanism of a series of positive and negative spindle to be required two different steering speed, the spindle box gives impetus to the movement of the box. Medium spindle is the key part of lathe. The stability of the spindle on the bearing directly affects the quality of the workpiece. Once the rotation accuracy of the main shaft is reduced, the value of the machine tool will be lowered.

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