Stainless Steel pipes, buy 321 Stainless Steel Coil on China Suppliers Mobile

Product Details

One of the Ti 321 stainless steel as a stabilizing element exists, but it is hot strong steel at high temperature is much better than 316L.321 stainless steel organic acid and inorganic acid in different concentration and different temperature, especially has good resistance to abrasion performance in oxidizing medium, used in the manufacture of wear and wear acid container equipment lining, pipeline.

321 stainless steel is Ni-Cr-Ti austenitic stainless steel, its performance is very similar to 304, but because of the addition of titanium, it has better resistance to grain boundary corrosion and high temperature strength. The formation of chromium carbide is effectively controlled by the addition of metallic titanium.
321 stainless steel has excellent high temperature stress rupture (Stress, Rupture) performance and high temperature creep resistance (Creep, Resistance), stress and mechanical properties are better than 304 stainless steel.

Product introduction

Chemical composition

Grade and Main chemical composition%
	C	Si	Mn	P≤	S≤	Cr	Mo	Ni	Other
SUS201	≤0.15	≤0.75	5.5-7.5	0.06	0.03	16-18	-	≤1.0	N≤0.25
SUS304	≤0.08	≤0.75	≤2.00	0.045	0.03	18-20	-	8-10.5	-
SUS304L	≤0.03	≤0.75	≤2.00	0.045	0.03	18-20	-	8-12	-
SUS304H	0.04-1.0	≤0.75	≤2.00	0.045	0.03	18-20	-	8-10.5	-
SUS309	≤0.25	≤1.00	≤2.00	0.045	-	22-24	-	12-15	-
SUS309S	≤0.08	≤1.00	≤2.00	0.045	0.03	22-24	-	12-15	-
SUS310	≤0.25	≤1.00	≤2.00	0.03	-	24-26	-	19-22	-
SUS310S	≤0.08	≤1.00	≤2.00	0.03	0.03	24-26	-	19-22	-
SUS316	≤0.08	≤1.00	≤2.00	0.045	0.03	16-18	2-3	10-14	-
SUS316L	≤0.03	≤1.00	≤2.00	0.045	0.03	16-18	2-3	10-14	-
SUS321	≤0.08	≤1.00	≤2.00	0.035	0.03	17-19	-	9-12	Ti≥5×C%
SUS409L	≤0.03	≤1.00	≤1.00	≤0.04	0.03	10.5-11.75	-	≤0.06	6xC%-0.75
SUS410	≤0.15	≤1.00	≤1.00	≤0.04	0.03	11.5-13.5	-	-	-
SUS410S	≤0.08	≤1.00	≤1.00	≤0.04	0.03	11.5-13.5	-	≤0.6	-
SUS430	≤0.12	≤0.75	≤1.00	0.04	0.03	16-18	-	≤0.6	-
SUS2205	≤0.03	≤1.0	≤2.00	0.03	0.02	22-23	3.0-3.5	4.5-6.5	N≤0.14-0.2
SUS904L	≤0.02	≤1.0	≤2.00	0.045	0.035	19-23	4.0-5.0	23-28	Cu1.0-2.0

Mechanical property

tensile strength

Mpa

Yield Strength

Mpa

Elongation

(%)

rate of reduction in area

(%)

Density

(g/cm3)

≥520

≥205

≥40

≥50

7.93

Applications

321 stainless steel is a high grade stainless steel in the 300 series, because the nickel content is relatively high. The utility model is applied to the outdoor machine of chemical, coal and petroleum industry with high grain boundary corrosion resistance, heat resistant parts of building materials and difficult parts of heat treatment, such as:

1) oil waste gas pipeline

2) engine exhaust pipe

3) boiler shell, heat exchanger, heating furnace parts

4) Noise components of 4 diesel engine

5) boiler pressure vessel

6) chemical transport vehicles

7) expansion joint

8) Spiral welded pipe for furnace pipe and dryer

Surface Finish of Stainless Steel
Surface Finish	Definition	Application
No.1	The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.	Chemical tank, pipe
2B	Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.	Medical equipment, Food industry, Construction material, Kitchen utensils.
No.4	Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.	Kitchen utensils, Electric equipment, Building construction.
Hairline	Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.	Building Construction.
BA/8K Mirror	Those processed with bright heat treatment after cold rolling.	Kitchen utensils, Electric equipment, Building construction.