Tianjin Bohai Metal Corporation

AISI/SUS 309 STAINLESS STEEL COIL/SHEET

Resistance of corrosion for AISI/SUS 309 stainless is excellent,Type 309's content of carbon is higher than Type 309S.This material is mainly used in furnace parts,heating elements,boiler baffles,chemical processing equipment,etc.

Stainless Steel Coil/Sheet

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Commodity name: AISI/SUS 309 STAINLESS STEEL COIL/SHEET

Product information

Stainless steels are high-alloy steels which have higher corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are further divided into ferritic, austenitic, and martensitic steels.

Grade 309 stainless steel has high corrosion resistance and strength compared to 304 stainless steel. The following datasheet gives an overview of grade 309 stainless steel.

201 202 301 304 304l 316 316l 310 410 430 Stainless Steel Sheet/Plate

Standard:	ASTM A240,ASME SA240,AMS 5524/5507
Thickness:	0.3 ~ 12.0mm
Width Range:	4'8ft',4'10ft',1000*2000mm,1500x3000mm etc
Brand name:	TISCO, ZPSS, BAOSTEEL, JISCO
Technique:	Cold Rolled ,Hot rolled
Forms :	Foils, Shim Sheet, Rolls, Perforated Sheet, Chequered Plate.
Applications	Pulp and Paper Textiles Water Treatment

Technical data

Chemical Composition

The following table shows the chemical composition of grade 309 stainless steel.

Element	Content (%)
Iron, Fe	60
Chromium, Cr	23
Nickel, Ni	14
Manganese, Mn	2
Silicon, Si	1
Carbon, C	0.20
Phosphorous, P	0.045
Sulfur, S	0.030

The physical properties of grade 309 stainless steel are given in the following table.

Properties	Metric	Imperial
Density	8 g/cm3	0.289 lb/in³
Melting point	1455°C	2650°F

Mechanical Properties

The following table outlines the mechanical properties of annealed grade 309 stainless steel.

Properties	Metric	Imperial
Tensile strength	620 MPa	89900 psi
Yield strength (@ strain 0.200%)	310 MPa	45000 psi
Izod impact	120 - 165 J	88.5 - 122 ft-lb
Shear modulus (typical for steel)	77 GPa	11200 ksi
Elastic modulus	200 GPa	29008 ksi
Poisson's ratio	0.27-0.30	0.27-0.30
Elongation at break (in 50 mm)	45%	45%
Hardness, Brinell	147	147
Hardness, Rockwell B	85	85
Hardness, Vickers (converted from Rockwell B hardness)	169	169

The thermal properties of grade 309 stainless steel are displayed in the following table.

Properties	Metric	Imperial
Thermal expansion co-efficient (@ 0-100°C/32-212°F)	14.9 µm/m°C	8.28 µin/in°F
Thermal conductivity (@ 0-100°C/32-212°F)	15.6 W/mK	108 BTU in/hr.ft².°F

ther designations equivalent to grade 309 stainless steel are included in the following table.

ASTM A167	ASME SA249	ASTM A314	ASTM A580
ASTM A249	ASME SA312	ASTM A358	FED QQ-S-763
ASTM A276	ASME SA358	ASTM A403	FED QQ-S-766
ASTM A473	ASME SA403	ASTM A409	MIL-S-862
ASTM A479	ASME SA409	ASTM A511	SAE J405 (30309)
DIN 1.4828	ASTM A312	ASTM A554	SAE 30309

Fabrication and Heat Treatment

Name	Stainless steel sheet
Model	310 309 316 304
Supply ability	1000 tons/month
Packaging	Export standard, seaworthy
Application	Construction Decoration
Material	300 Series
Edge	Mill Edge Slit Edge
Thickness	0.3-30mm
Advantage	1.Good Reputation 2.Samples

General Properties

Alloy 309 (UNS S30900) is an austenitic stainless steel developed for use in high temperature corrosion resistance applications. The alloy resists oxidation up to 1900°F (1038°C) under non-cyclic conditions. Frequent thermal cycling reduces oxidation resistance to approximately 1850°F (1010°C).

Because of its high chromium and low nickel content, Alloy 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The alloy is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. Alloy 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.

When heated between 1202 – 1742°F (650 – 950°C) the alloy is subject to sigma phase precipitation. A solution annealing treatment at 2012 – 2102°F (1100 – 1150°C) will restore a degree of toughness.

309S (UNS S30908) is the low carbon version of the alloy. It is utilized for ease of fabrication. 309H (UNS S30909) is a high carbon modification developed for enhanced creep resistance. It most instances the grain size and carbon content of the plate can meet both the 309S and 309H requirements.

Alloy 309 can be easily welded and processed by standard shop fabrication practices.

Applications

Furnaces — burners, doors, fans, piping and recuperators
Fluidized Bed Furnaces — grids, piping, wind boxes
Paper Mill Equipment
Petroleum Refining — catalytic recovery systems, recuperators
Power Generation — pulverized coal burners, tube hangers
Thermal Processing — annealing covers and boxes, burners grids, doors, fans, lead pans and neutral salt pots, muffles and retorts, recuperators, walking beams
Waste Treatment — incinerators, rotary kilns and calciners

FAQ

1.Are you a trading company or manufacturer?

Manufacturer with factory

2.What's your delivery terms?

1)FOB 2)CFR 3)CIF 4)EXW

3.What's your Delivery Time?

15~40 days after received the deposit or according to the order

4.What's the Payment Terms?

Usually,30% as deposit,70% before shipment by T/T

5.What's your available port of Shipment?

Tianjin Port/ Xingang Port

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