309 309S Hot Rolled Stainless Steel Coil

Standards:

 

Grade	GB	ASTM	JIS	ISO	EN
309	16Cr23Ni13 2Cr23Ni13	S30900 309	SUH309	-	X15CrNiSi20-12 1.4828
309S	06Cr23Ni13 0Cr23Ni13	S30908 309S	SUS309S	X12CrNi23-13	X12CrNi23-13 1.4833

Properties:

 

Chemical properties:
 

Grade	C	Si	Mn	P	S	Ni	Cr
309	≤0.20	≤1.00	≤2.00	≤0.040	≤0.030	12.00~15.00	22.00~24.00
309S	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	12.00~15.00	22.00~24.00

Mechancal properties:

 

Grade		309S Stainless Steel Coil
Yield Strength  RP0.2/MPa		≥205
Tensile Strength  Rm/MPa		≥515
Elongation after break  A/%		≥40
Hardness value	HBW	≤217
	HRB	≤95
	HV	≤220

Physical properties:

 

Grade		309 Stainless Steel Coil	309S Stainless Steel Coil
Density/（kg/dm³）20℃		7.98	7.98
Melting Range/℃		1398~1453	1397~1453
Specific Heat[kJ/(kg•K)]0℃~100℃		0.50	0.50
Thermal Conductivity/[W/(m•K)]	100℃	13.8	15.5
	500℃	18.7	18.6
Coefficient of Thermal Expansion/(10-6/K)	0℃~100℃	14.9	14.9
	0℃~500℃	18.0	18.0
Electrical Resistivity/(Ω•mm2/m)20℃		0.78	0.78
Modulus of Elasticity(kN/mm2)20℃		200	193
Magnetism		NO	NO

Application:

 

309 vs 309S stainless steel is a chromium-nickel austenitic stainless steel, which is generally considered a heat-resistant alloy and is mainly used in high-temperature scenarios. Due to the high content of chromium and nickel, 309/309S stainless steel has excellent corrosion resistance, excellent oxidation resistance and heat resistance, while providing good strength at room temperature and high temperature.

The only significant difference between hot rolled stainless steel coils of 309 vs 309S stainless steel is the carbon content. The carbon content of 309 stainless steel coil is 0.2%, while the carbon content of 309S stainless steel coil is much less, about 0.08%, which can minimize carbide precipitation and improve weldability.

309/309S hot-rolled stainless steel coils can obtain higher tensile strength and yield strength through cold working, which requires roll forming, stamping and stretching, and annealing method to reduce hardness and increase ductility.

309/309S stainless steel is used for its high temperature oxidation resistance, excellent high temperature strength and corrosion resistance in:

1. Heating element

2. Aircraft and Jet Engine Parts

3. Automotive Exhaust System Parts

4. Heat Exchanger

5. Sulphite treatment equipment

6. Boiler baffle

7. Refinery
 

Stainless Steel Surface:
 

Stainless steel has a variety of surfaces, please contact us for confirmation.

Surface Finish	Definition	Application
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.
BA	Those processed with bright heat treatment after cold rolling.	Kitchen utensils, Electric equipment, Building construction.
NO.3	Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001.	Kitchen utensils, Building construction.
NO.4	Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.	Kitchen utensils, Building construction, Medical equipment.
HL	Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.	Building Construction.
NO.1	The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.	Chemical tank, pipe.

FAQ:

 

Q:Can you send samples?

A:Sample can be for free,freight cost collect.

Q:What product information do I need to provide?

A:Steel grade/thickness/width/quantity,these will decide the price.

Q:About product prices?

A:Prices vary from period to period due to cyclical changes in the price of raw materials.

Q:What are the certifications for your products?

A:We have ISO 9001,CE,SGS,BV and other certifications.

Q:How about the delivery time?

A:Regularly the delivery time around 10-15 days,customized one will inform the delivery time ahead.

Q:Does the product have quality inspection before loading?

A:All the products are strictly tested before packaging,also can inspect by third party inspection.

Q:How to pack the products?

A:Standard export package with waterproof film and wooden pallet.It can effectively protect products from corrosion.