ODIL 409 Stainless Steels are especially useful for applications where oxidation or corrosion protection beyond the capacity of carbon steel and some coated steels is needed. Current applications include automotive and truck exhaust systems, including tubular manifolds; agricultural spreaders, gas turbine exhaust silencers, and heat exchangers.

	ASTM A 240 UNS S40920 %	ODIL 409%
Carbon	0.03 max	0.02 max
Manganese	1.00 max.	0.75 max.
Phosphorus	0.040 max.	0.040 max
Sulfur	0.02 max.	0.020 max
Silicon	1.00 max.	1.00 max.
Chromium	10.50 - 11.70 max	10.50 - 11.70
Nickel	0.50 max	0.50 max
Nitrogen	0.03 max	0.02 max
Titanium	8x(C+N) min 0.15 - .50	8x(C+N) min 0.15 - .50

ODIL 409 Stainless Steels are also useful for “difficult-to-form” hardware such as fuel filters.

Typical Annealed Mechanical Properties
(Annealed Condition)

Properties Acceptable for Material Specification 0.041" to 0.075"

ODIL 409 Ni is a nominal 11% chromium stainless steel micro-alloyed with titanium, manganese and nickel that provides excellent weldability, toughness and fabricating characteristics. This is a cost effective alternative to low carbon steel and low-alloy steels providing superior corrosion and/or oxidation resistance.

Under wet sliding conditions, such as encountered in coal-handling equipment, ODIL 409 Ni Stainless Steel is a more cost-effective solution to carbon and AR (abrasion resistant) steels due to the corrosion component of the wear process.

High-temperature strength and oxidation resistance of this material are superior to carbon steel. The recommended maximum service temperature is 1350°F (730°C).

Potential coal-handling applications include chutes, hoppers, bunkers, flooring, perforated plate for sizing, flight conveyor wear liners, vibrating screen pans, blending bin feeders, paddle mixers, screw feeders, fuel bins and dryer components.

Potential transportation applications include hopper car discharge chutes and bodies, intermodal containers, trailers, bus frames, dump truck bed liners and automotive exhaust flanges.

Additional application potential include noise suppression barriers, slurry pipelines, heat shields, cyclones, silos, belt scraper blades, screens and tanks.

	In Percentage (%)
Carbon	0.02
Manganese	0.70
Phosphorus	0.020
Sulfur	0.004
Silicon	0.35
Chromium	11.00
Nickel	0.85
Titanium	0.20
Nitrogen	0.015
Iron	Balance

ODIL 409 Ni Stainless Steel is an ideal material for applications requiring weldability and toughness superior to standard Type 409 in gauges greater than 0.120" (3.05 mm), at relatively low cost.

Typical Room Temperature Properties*

Minimum Properties Acceptable for Material Specification*

ODIL Type 410 is a martensitic stainless steel that provides good corrosion resistance plus high strength and hardness. It is magnetic in both the annealed and hardened conditions. A wide range of properties can be developed with different heat treatments.

Applications requiring moderate corrosion resistance and high mechanical properties are ideal for this alloy.

	In Percentage (%)
Carbon	0.15 max.
Manganese	1.00 max.
Phosphorus	0.040 max.
Sulfur	0.030 max.
Silicon	1.00 max.
Chromium	11.50 - 13.50.

Typical uses include flat springs, knives, kitchen utensils and hand tools.

Typical Annealed Mechanical Properties

Fatigue Strength*

ODIL 410 Cb is an improved version of standard Type 410 that provides superior characteristics, yet costs no more. By the addition of columbium, properties are improved without altering any of the desirable characteristics of Type 410.

The alloy offers three major advantages over Type 410:

• Greater ease in heat treating
• Higher strength and toughness
• Improved grain size control

When tempering Type 410, rapid changes in hardness can occur with relatively minor changes in time and temperature. For this reason, it is often difficult to obtain uniform, consistent hardness from part to part, especially when heat treating large furnace loads where temperature variations are more likely to exist. ODIL 410 Cb alleviates that problem because it is not as sensitive to time and temperature variations. Specific hardness ranges can be maintained more consistently.

In the annealed condition, the mechanical properties of ODIL 410 Cb are about the same as those of Type 410. However, after tempering, the alloy has appreciably higher strength and ductility than Type 410 at both elevated and sub-zero temperatures. Also, the impact strength of ODIL 410 Cb is significantly higher than Type 410 in most heat-treated conditions.

	In Percentage (%)
Carbon	0.12
Manganese	0.19
Phosphorus	0.021
Sulfur	0.004
Silicon	0.24
Chromium	11.9
Columbium	0.15
Molybdenum	0.027

ODIL 410 Cb can replace 409 Ni in some flange applications. In addition, it can be used as a replacement wherever Type 410 is specified. In a wide variety of applications that could include exhaust flanges, steam turbine blades, aerospace equipment and flat springs.

Typical Mechanical Properties*

ODIL 410S Stainless Steel is a non-hardening modification of Type 410. A small titanium addition minimizes austenite formation at high temperatures, thereby restricting the alloy’s ability to harden. The result is a soft, ductile condition when the material is rapidly cooled from above the critical temperature. This non-hardening characteristic also retards formation of hardening cracks when the steel is welded. The alloy is completely ferritic in the annealed condition.

	In Percentage (%)
Carbon	0.08 max.
Manganese	1.00 max.
Phosphorus	0.040 max.
Sulfur	0.030 max.
Silicon	1.00 max.
Chromium	11.5 - 14.50
Titanium	0.20 max.

410S particularly useful for annealing boxes, quenching racks, oxidation-resistant partitions and other high-temperature units.

Typical Mechanical Properties*

ODIL Type 420 is a martensitic stainless steel that provides corrosion resistance similar to Type 410 plus increased strength and hardness. It is magnetic in both the annealed and hardened conditions. Maximum corrosion resistance is attained only in the fully hardened or fully hardened and stress relieved condition. It is never used in the annealed condition.

Applications requiring good corrosion resistance and high hardness are ideal for this alloy. Typical uses include cutlery, surgical and dental instruments, scissors, tapes and straight edges.

	In Percentage (%)
Carbon	0.15 min
Manganese	1.00 max.
Phosphorus	0.040 max.
Sulfur	0.030 max.
Silicon	1.00 max.
Chromium	12.00 - 14.00

ODIL 420ss is not normally used at temperatures exceeding 800°F (427°C) due to rapid softening and loss of corrosion resistance.

Typical Mechanical Properties

ODIL Type 430 is one of the most widely used of the “non-hardenable” ferritic stainless steels. It combines good corrosion resistance and heat and oxidation resistance up to 1500°F (816°C) with good mechanical properties.

Typical consumer product applications include automotive trim and molding, furnace combustion chambers, dishwashers, range hoods, gas burners on heating units, gutters and downspouts, steam iron bases and flatware. Industrial and commercial applications range from interior architectural applications to nitric acid plant equipment, oil refinery equipment, roofing and siding and restaurant equipment.

	In Percentage (%)
Carbon	0.15 min
Manganese	1.00 max.
Phosphorus	0.040 max.
Sulfur	0.030 max.
Silicon	1.00 max.
Chromium	12.00 - 14.00
Nickel	0.50 max.

Typical Mechanical Properties

ODIL 434 is a modification of Type 430, one of the most widely used of the “non-hardenable” ferritic stainless steels. The addition of molybdenum increases this alloy’s corrosion resistance and its attack from many deicing chemicals. It also provides good heat and oxidation resistance up to 1500°F (816°C) as well as good mechanical properties.

Typical consumer product applications include automotive trim and molding, furnace combustion chambers, dishwashers, range hoods, gas burners on heating units, gutters and down spouts, steam iron bases and flatware.

	In Percentage (%)
Carbon	0.08 max.
Manganese	1.00 max.
Silicon	0.60 max.
Chromium	16.00 - 18.00
Nickel	0.50 max.
Molybdenum	0.75 - 1.25

Commercial and industrial applications range from interior architectural uses to nitric acid plant equipment, oil refinery equipment, roofing and siding and restaurant equipment.

Typical Mechanical Properties

ODIL's 436L ULTRA FORM® is a ferritic grade of stainless steel that outperforms Type 409 in oxidation resistance and corrosion testing. The addition of molybdenum enhances pitting resistance when compared to other ferritic materials such as Type 409, Type 430, and Type 439. This material is resistant to stress corrosion cracking in the presence of chlorides and has excellent formability.

	In Percentage (%)
Carbon	0.01
Manganese	0.30
Silicon	0.30
Chromium	17.30
Nickel	0.30
Molybdenum	1.00
Ti	0.30

Annealed Condition

ODIL 439 is a ferritic stainless steel that outperforms Type 409 in both oxidation resistance and corrosion resistance. Special attention to chemical composition combined with special processing give this alloy optimum formability that is reproducible, coil after coil and heat after heat. This provides special advantages when producing difficult-to-form exhaust systems components.

Oxidation and corrosion resistance superior to Type 409 makes ODIL 439 Stainless Steel attractive for numerous automotive exhaust applications.

	In Percentage (%)
Carbon	0.025 max.
Manganese	0.50 max.
Silicon	0.75 max.
Chromium	17.00 - 19.00
Nickel	0.50 max.
Titanium	≥ 0.20+4(C+N) min. - 0.50 max.

Typical uses of 439ss include tubular manifolds and other exhaust system components where temperatures may exceed the oxidation limit of Type 409, or where wet corrosion resistance, particularly to chlorides, is needed.

Typical Mechanical Properties

ODIL 439 LT is a ferritic stainless steel that outperforms Type 409 in both oxidation resistance and corrosion resistance, and is comparable to Type 439 stainless steel. Special attention to chemical composition combined with special processing give this alloy optimum formability that is reproducible, coil after coil and heat after heat. This provides special advantages when producing difficult-to-form exhaust systems components. The lower titanium content of ODIL 439 LT Stainless Steel compared to Type 439 provides an improved surface essentially free from titanium scale.

Oxidation resistance and corrosion resistance superior to Type 409 stainless steel make ODIL 439 LT Stainless Steel attractive for numerous automotive exhaust applications. Suggested applications include tubular manifolds and other exhaust system areas where temperatures may exceed the oxidation limit of Type 409 or where wet corrosion resistance, particularly to chlorides, is needed.

	In Percentage (%)
Carbon	0.025 max.
Manganese	0.50 max.
Silicon	0.75 max.
Chromium	17.00 - 19.00
Nickel	0.50 max.
Columbium + Titanium	≥ 0.20+4(C+N) min. - 0.50 max.

Typical Mechanical Properties