Steel Coils #2815483

Grade 409 is a titanium stabilised ferritic stainless steel. Although regarded as a general-purpose chromium stainless steel the primary application for Grade 409 is automotive exhaust systems.Its applications are those where appearance is a secondary consideration to mechanical properties. Grade 409 resists atmospheric and exhaust gas corrosion. A light surface rust will form in moist atmospheres; this rust retards further corrosion but makes the surface undesirable for decorative applications. The corrosion resistance is about the same as that of 3CR12 and the 12% chromium martensitic grades such as 410, and inferior to the 17% chromium grade 430. Generally 409 is classified as resistant to scaling in intermittent service up to 815°C and up to 675°C in continuous service, but these temperatures are dependent upon the exact service environment. Annealing - heat to 790-900°C and air cool. This grade cannot be hardened by thermal treatment. More highly stabilised versions of 409 are useful where 409 has been proven marginal - these grades S40910, S40920 and S40930 are stabilised with titanium, niobium or both titanium and niobium

Applications :

• Automotive exhaust system
• Manifolds exhaust pipes,
• Catalytic converters,
• Mufflers,
• Tail pipes
• Home heating systems,
• Automotive thermostats
• Fuel filters,
• Electrical transformer cases,
• Gaskets and heat exchanger tubing.

Details :

• ASTM - 409, Ferritic
• EN10088 - X2CrTi12, 1.4512(I)(I)

Available in different grades,  Hot Dip Galvanized Steel that we offer in the market is high on demand in the market. Unmatched quality, anti corrosive, high efficiency, etc. are the special features that best defines our range of Hot Dip Galvanized Steel. Hot Dip Galvanized Steel is widely used in the construction of buildings.

Grades :

• Commercial Quality
• Draw Quality 
• Lock Forming
• Deep DQ
• Extra DDQ
• Super Extra DDQ         

Type of Coatings : 

• Galvanised (Zinc with Lead Or With out Lead)
• Galvannealed (Zinc-Iron Alloy)       

Coating Weights :

• For Galvanized steel Both side equal coating 60 - 600 gm/sq.m. (both sides) Differential coating Up to 400 gm/sq.m. (both sides) Max ratio 1:2
• For Galvannealed steel Both sides equal coating : 60 - 200 gms/sq.m.
• Spangle option: Zero spangle, regular spangle

We are counted among distinguished suppliers of Aluminized Mild Steel Coils catering to buyers across diverse markets. We are backed by a quality control wing that strictly check the lot at all stages right from the production to the final dispatch.

Type 441 Stainless Steel is a ferritic stainless steel which provides good high-temperature strength (exceeding that of Types 409 and 439 Stainless Steels) plus good corrosion resistance in many exhaust gas environments (equivalent to Type 439 and 18 Cr-Cb Stainless Steels). . Ferritic steels are not inherently strong at elevated temperatures, but columbium additions coupled with appropriate solution annealing markedly improve long-time creep rupture strength. Type 441 is dual stabilized with niobium and titanium to provide good weld ductility and resistance to intergranular corrosion in the weld heat affected zone.

Product Forms : Sheet, Strip

Specifications : ASTM A240 (S43940) and EN 10088-2 (1.4509)

Typical Applications : Automotive exhaust tube and components

Aluzinc Steel Coils are produced by dipping cold rolled coils in the molten Aluzinc bath. Aluzinc Ingots are made with the composition of 55% Aluminium, 43.5% Zinc and 1.5% Si. Aluzinc has better corrosion resistance in comparison with normal galvanized Steel coils. It can be supplied in either coil / plain cut sheets or corrugated / roll formed sheet form.

We supply Aluzinc coils as per following specs. Available as per DIN/ASTM/JIS/EN and equivalent. In full hard, semi hard and soft quality (commercial grade, lock forming grade and structural grade) 

Hot-dip coated with commercially pure aluminum. It is intended principally for applications requiring atmospheric corrosion resistance. Type 2 may ultimately be manufactured into corrugated roofing and siding, grain bins, air conditioner housings and drying ovens.

Characteristics

• Good atmospheric corrosion standard.
• Various coating weights
• Appearance
• Maintenance free
• Highly reflective of solar heat
• Fire resistant.

Coating :

The Aluminized Steel Type 2 coating microstructure is comprised of two layers: an aluminum layer and an underlying hard aluminum-iron inter metallic alloy layer. The alloy arises from interaction of molten, commercially pure aluminum with the steel surface and is the agent that bonds the coating to the substrate. The alloy is an essential part of the coating protection system, supplementing the aluminum layer and providing a second line of defense to ensure long term durability. Control of the alloy layer thickness and thickness uniformity assures the degree of coating formability necessary for corrugated steel pipe manufacture.

Applications :

• Storm sewers.
• Freshwater drainage.
• Road culverts.
• Storm water detention.
• Corrugated Roofing/Siding.
• Grain Bins.
• Drying Ovens.
• Air-conditioner condenser housings.

Type 436 is a variation of Type 434 to which Columbium has been added to minimize “roping” or “ridging” during stretch forming operations.

Applications : Automotive exhaust applications, stretch formed trim.

Chemistry Typical

• Carbon - 0.12 max
• Manganese - 1.00 max
• Silicon - 1.00 max
• Chromium - 16.00-18.00
• Nickel - 0.50 max
• Molybdenum - 0.75-1.25
• Phosphorus - 0.040 max
• Sulfur - 0.030 max
• Cobumbium + Tantalum - 5xC min-0.70 max
• Iron - Balance

Physical Properties

• Density -  0.28 lbs/in³, 7.74 g/cm³
• Electrical Resistivity -  microhm-in (microhm-cm)  - 68°F (20°C) -  23.68 (60)
• Specific Heat -  BTU/lb/°F (kJ/kg•K) - 32-212°F (0-100°C) -  0.11 (0.46)

• Thermal Conductivity -  BTU/hr/ft²/ft/°F (W/m•K)
  • At 212°F (100°C) - 15.1 (26.1)
  • At 932°F (500°C) - 15.2 (26.3)

• Mean Coefficient of Thermal Expansion -  in/in/°F (μm/m•K)
  • 32 – 212°F (0 -100°C) - 5.2 x 10-6(9.3)
  • 32 – 1000°F (0 -538°C) - 6.3 x 10-6(11.4)

• Modulus of Elasticity - ksi (MPa) - 29.0 x 10³ (200 x 10³) in tension
• Magnetic Permeability - Magnetic
• Melting Range - °F (°C) 2600-2750 (1427-1510)

Forms :

• Coil – Strip, Foil, Ribbon
• Wire – Profile, Round, Flat, Square

Mechanical Properties at Room Temperature
Properties :  Annealed

• Ultimate Tensile Strength - 77 KSI min (531 MPa min)
• Yield Strength - (0.2% Offset) 53 KSI min (365 MPa min)
• Elongation - 22% min
• Hardness - Rb 89 max

Additional Properties :Corrosion Resistance - Refer to NACE (National Association of Corrosion Engineers) for corrosion information.

Finishes :

• Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
• 2D–Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process.
• 2B–Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
• BA-Bright annealed cold rolled and bright annealed
• CBA-Course bright annealed cold rolled matte finish and bright anneal
• 2-Cold Rolled
• 2BA–Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part.
• Polished-Various grit finish for specific polish finished requirements
• Not all finishes are available for all alloys – Contact Ulbrich Sales for more information

Wire Finishes :

• XC-Extra clean. Bright annealed or bright annealed and cold rolled
• Grease-Ultra bright finish for decorative applications
• Soap-Soap is not removed from tempered wire to act as a lubricant

• Contact Ulbrich Wire for custom wire finishes.

Cold Forming : Type 436 is readily drawn and formed. Its drawing characteristics are similar to those of low carbon steel, although it is stronger in the annealed condition and will require stronger tooling and increased power. It is also adaptable to most hot-forming operations. It does have a slightly tendency to “rope” during forming, but it is minimized by the addition of colombium.

Ours is a well-established organization based in Mumbai(India) and in proximity to valuable resources. Delivering the best in class products, we ensure that the range is in compliance with the International Norms.

Type 430 Stainless Steel is a low carbon ferritic stainless steel which, in mildly corrosive environments or atmospheric exposures, has corrosion resistance approaching that of some nickel-bearing stainless steels. This alloy is oxidation resistant at elevated temperatures. Type 430 is ductile, does not work harden readily, and can be formed using a variety of roll forming or mild stretch bending operations as well as the more common drawing and bending processes. Type 430 is ferromagnetic.

Product Forms : Sheet, Strip

Specifications : ASTM A240

Typical Applications : Sinks, sink rims, appliance trim, counter tops, dish washers, range hoods, flatware, architectural uses, roofing, siding and restaurant equipment.

Processing : Type 430 should be annealed at 1450-1550^ºF and furnace cooled at a rate of 50^°F per hour to 1100°F and air cooled. If the annealing temperature does not exceed 1450^°F (790^°C), an air cool may be substituted for the furnace cool when annealing thin sections.

Forming : Type 430 is readily drawn and formed. Its drawing characteristics are similar to those of low-carbon steel, although it is stronger in the annealed condition and will require stronger tooling and increased power.

Welding : Type 430 is generally considered to be weldable by the common fusion and resistance techniques. Special consideration is required to avoid brittle weld fractures during fabrication. When a weld filler is needed, AWS E/ER 308L and 430 are most often specified. Corrosion: This alloy is resistant to attack in a wide variety of corrosive media including nitric acid, and many organic acids.

Type 410 Stainless Steel 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.

Product Forms : Sheet, Strip

Specifications : ASTM A240

Typical Applications : Flat springs, knives, kitchen utensils and hand tools

Processing : Annealing: Heat slowly to 1500 -1650^oF, cool to 1100^oF in furnace, air cool. Process Annealing - Heat to 1350 -1450^oF, air cool. Hardening - Heat to 1700 - 1850^oF, air cool or oil quench. Follow by stress-relief or temper. Stress Relieving: Heat at 300 - 800^oF for 1 to 2 hours, air cool.

Tempering : Heat to 1100 - 1400°F for 1 to 4 hours, air cool.

Forming : Type 410 has reasonably good cold working properties and can be moderately drawn and formed in the annealed condition.

Welding : The martensitic alloys have limited weldability due to their hardenability. Corrosion: Type 410 provides good corrosion resistance to air, water and some chemicals. It shows satisfactory resistance to nitric acid, concentrated sulfuric acid, dilute acetic acid and naphtha. Resistance to food acids is good.

The Type 1 hot dip aluminum coating (approximately 91% aluminum and 9% silicon) is metallurgically bonded to the 409 Aluminized Stainless Steel substrate to provide excellent resistance to pitting from muffler condensate and road salt. It provides red rust protection up to 800oF and oxidation resistance to 1550oF. The aluminum coating improves the appearance and significantly extends the life of the exhaust system over that of bare stainless. The product can be welded and easily fabricated into exhaust components. Refer to the Type 409 datasheet for base metal composition and properties.

Product Forms : Sheet, Strip

Specifications : ASTM A463

Typical Applications : Automotive exhaust components.

In order to ensure zero-defect quality, we conduct several tests on the products prior to final dispatch. One of the leading companies based in Mumbai(India), we are a known for the exceptional assortment of products.

Type 439 Stainless Steel is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. It may be used in either the annealed, cold formed or as-welded condition in many applications where other stainless steel alloys such as Type 304, Type 410, Type 409 and Type 430are used. Type 439 may also be used in many oxidizing environments where Type 304 is considered adequate in terms of general corrosion resistance but is subject to chloride stress corrosion cracking. When application temperatures are too high for Type 409, Type 439 provides good oxidation and corrosion resistance for many automotive exhaust system components and residential furnace primary heat exchangers.

Product Forms : Sheet, Strip

Specifications : ASTM A240

Typical Applications : Type 439 Stainless Steel is attractive for numerous automotive exhaust applications. Typical uses 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.

Forming : Type 439 provides good formability. Olsen Cup heights of 0.490" are obtainable, flat bends of 180° are possible with material up to 0.080" thick. The Limiting Draw Ratio (LDR) for this alloy is 2.13.

Welding : Type 439 is generally considered to be weldable by the common fusion and resistance techniques. It has weldability comparable to Type 409 stainless steel.