Material:
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5% to 11% chromium content by mass.
Stainless steel does not readily corrode, rust or stain with water as ordinary steel does, but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity, or poor circulation environments. It is also called corrosion-resistant steel or CRES when the alloy type and grade are not detailed, particularly in the aviation industry. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and resistance to corrosion are required.
Another name: seamless stainless steel pipe(tube),welded stainless steel pipe(tube)
Material grade: SS201,202,304,316,316L,430
Characteristics:welding, corrosion resistance, polishing performance (BQ)
Standard:ASTM
Specification:
Out diameter: 0.8-3000mm
Thickness:0.5-400mm
Length:6m or as the customers’ request.
Surface: 180G, 320G Satin/Hairline 400G, 600G Mirror finish
Test:Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT
Process method:Code drawn, annealed with nitrogen protection, ultrasonic,automatic shape, polished
Packing:weaving bag, non-woven fabric, seaworthy bundle,wooden case if required
Or as the clients’ requests.
The chemical composition and mechanical property
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
|
<100
|
<90
|
<90
|