UNS S44000 Square Bars, SS 440 Square Bars, Stainless Steel 440 Square Bars Supplier, Manufacturer and Exporter in India
Din 1.4125 SS 440 Square Bars, SS UNS S44000 Square Bars, Stainless Steel 440 Square Rods, 440 Stainless Steel Cold Drawn Bars Suppliers in India.
GENERAL PROPERTIES:-
Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels. Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.
APPLICATIONS:-
Typical applications include:
- Rolling element bearings
- Valve seats
- High quality knife blades
- Surgical instruments
- Chisels
CORROSION RESISTANCE:-
Good resistance to the atmosphere, fresh water, foods, alkalies and mild acids. Best resistance in the hardened and tempered and passivated condition. A smooth polished surface also assists.
The corrosion resistance of grade 440C approximates that of grade 304 in many environments.
HEAT RESISTANCE:-
Not recommended for use in temperatures above the relevant tempering temperature, because of reduction in mechanical properties by over-tempering.
HEAT TREATMENT:-
Annealing – Full anneal – 850-900°C, slow furnace cool to about 600°C and then air cool. Sub-critical Annealing – 735-785°C and slow furnace cool.
Hardening – Heat to 1010-1065°C, followed by quenching in warm oil or air. Oil quenching is necessary for heavy sections. Immediately temper at 150-370°C to obtain a wide variety of hardness values and mechanical properties as indicated in the accompanying table.
Tempering in the range 425-565°C is to be avoided because of reduced impact resistance and corrosion resistance. Tempering in the range 590-675°C results in lower hardness (the product become machinable) and high impact resistance.
WELDING:-
If welding is necessary pre-heat at 250°C and follow welding with a full anneal. Grade 420 filler will give a high hardness weld (although not as high as the 440C), but 309 or 310 will produce soft welds with higher ductility.
MACHINING:-
In the annealed condition this grade is relatively easily machined; approximately the same as for high speed steel. Chips are tough and stringy so chip breakers are important. If these grades are hardened machining becomes more difficult and probably impossible.
COMPOSITION:-
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 440C | min. max. | 0.95 1.20 | - 1.00 | - 1.00 | - 0.040 | - 0.030 | 16.00 18.00 | - 0.75 | - | - |
MECHANICAL PROPERTIES:-
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed* | 758 | 448 | 14 | 269HB max# | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
| * Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440A, B and C. | |||||
PHYSICAL PROPERTIES:-
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (mm/m/°C) | Thermal Conductivity(W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nW.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-200°C | 0-600°C | at 100°C | at 500°C | |||||
| 440 C | 7650 | 200 | 10.1 | 10.3 | 11.7 | 24.2 | - | 460 | 600 |
POSSIBLE ALTERNATIVE GRADES:-
| Grade | Why it might be chosen instead of 440C |
|---|---|
| 440A/B | Slightly softer and more corrosion resistant grade needed |
| 440F | High machinability required, with same hardness and hardenability as 440C |
| 420 | Lower strength and hardness needed than any of the 440 Grades |
| 416 | Higher machinability required, and the much lower hardness and strength is still adequate |
Harsh steel Supplies and Exports Stainless steel 440 Strips from 2.5mm wide to 400mm, slit to close tolerances. We supply in below specifications:-
SQUARE BAR PRODUCT OVERVIEW:-
| Stainless Steel Square Bar | |
|---|---|
| Thickness Range of Stainless Plate | 3/16″ THRU 4″ (LARGER SIZES AVAILABLE UPON REQUEST) |
| Grades | 202, 304/304L, 316/316L,304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410. In duplex grades, we can supply 2205 and 2507. Some nickel Alloy such as alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others Titanium alloys and copper alloys are also available |
INVENTORY:-
- X = Stocked Item
- P = Call For availability square bar can be cut to size.
- Square bar can be polished per customer specifications.
- Square bar is stocked in Penn met 2000 for improved machinability.
| Size in Inches | Wt per Ft | Wt per 12′ | 303 | 304/L | 316/L | 416 |
|---|---|---|---|---|---|---|
| 3/16″ | 0.120 | 1.440 | X | X | X | P |
| 1/4″ | 0.210 | 2.52 | X | X | X | P |
| 5/16″ | 0.330 | 3.96 | X | X | X | X |
| 3/8″ | 0.480 | 5.76 | X | X | X | X |
| 7/16″ | 0.650 | 7.80 | X | X | X | X |
| 1/2″ | 0.850 | 10.20 | X | X | X | X |
| 9/16″ | 1.080 | 12.96 | X | X | X | X |
| 5/8″ | 1.330 | 15.96 | X | X | X | X |
| 3/4″ | 1.910 | 22.92 | X | X | X | X |
| 7/8″ | 2.610 | 31.32 | X | X | X | X |
| 1″ | 3.400 | 40.80 | X | X | X | X |
| 1-1/8″ | 4.310 | 51.72 | X | X | X | X |
| 1-1/4″ | 5.320 | 63.84 | X | X | X | X |
| 1-3/8″ | 6.400 | 76.80 | X | X | X | X |
| 1-1/2″ | 7.600 | 91.20 | X | X | X | X |
| 1-3/4″ | 10.400 | 124.80 | X | X | X | X |
| 2″ | 13.600 | 163.20 | X | X | X | X |
| 2-1/4″ | 17.200 | 206.40 | X | X | X | X |
| 2-1/2″ | 21.300 | 255.60 | X | X | X | X |
| 3″ | 30.63 | 367.56 | X | X | X | P |
| 4″ | 54.40 | 652.80 | X | X | X | P |
PROCESSING:-
Customers can select a number of processing options to produce stainless steel bars to their exact specifications, reducing materiel costs, production time, scrap and internal handling.
| Long Product Processing Services Overview | |
|---|---|
| Square Bar Cutting | Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees. Thickness range is 1/16″ to 28″ diameter |
| Square Bar Production Cutting | Penn Stainless can provide production cutting for product diameters up to 4″. We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances. |
| Square Bar Polishing | Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes. |
TOLERANCES FOR COLD AND HOT SQUARE BARS
COLD FINISHED SQUARE BAR TOLERANCES:
| CF Tolerances | Plus | Minus |
|---|---|---|
| 1/8″ to 5/16″ (exclusive) | 0.000 | 0.002 |
| 5/16″ to 1/2″ (exclusive) | 0.000 | 0.003 |
| 1/2″ to 1″ (inclusive) | 0.000 | 0.004 |
| over 1″ to 2″ (inclusive) | 0.000 | 0.006 |
| over 2″ to 3″ (inclusive) | 0.000 | 0.008 |
COLD FINISHED SQUARE BAR STRAIGHTNESS TOLERANCES:
CF: 1/16 inch in any 5 foot; but may not exceed 1/16 X (length in ft/5)
HOT FINISHED SQUARE BAR TOLERANCES:
| HF Tolerances | Plus | Minus | Out of Sq |
|---|---|---|---|
| Over 7/8″ to 1″ (inclusive) | 0.009 | 0.009 | 0.013 |
| Over 1″ to 1-1/8″ (inclusive) | 0.010 | 0.010 | 0.015 |
| Over 1-1/8″ to 1-1/4″ (inclusive) | 0.011 | 0.011 | 0.016 |
| Over 1-1/4″ to 1-3/8″ (inclusive) | 0.012 | 0.012 | 0.018 |
| Over 1-3/8″ to 1-1/2″ (inclusive) | 0.014 | 0.014 | 0.021 |
| Over 1-1/2″ to 2″ (inclusive) | 1/64 | 1/64 | 0.023 |
HOT FINISHED SQUARE BAR STRAIGHTNESS TOLERANCES:
HF: 1/8 inch in any 5 foot; but may not exceed 1/8 X (length in ft/5)
STAINLESS STEEL SQUARE BAR SPECIFICATIONS:
| Stainless Steel Square Bar Specifications | |
|---|---|
| ASTM A276 | This specification encompasses cold-finished or hot-finished bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels. |
| ASTM A479 | This specification includes cold and hot finished stainless steel bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels. |
| ASTM A484 | This specification includes wrought stainless steel bars, shapes, forgings, and billets or other semi-finished materials, except wire, for forging. The materials are available in four types of conditions. |
| ASTM A582 | This specification includes cold or hot finished bars, which are suitable for machining processes. This specification includes rounds, squares, and hexagons, from common types of stainless free-machining steels. |
| ASTM B473 | This specification includes nickel alloy bar & wire, which can be produced in a solution-annealed condition, stabilized-annealed condition, or annealed condition. |
We export our STAINLESS STEEL 440 SQUARE BARS products to Western and Eastern Europe, Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Spain, France, United Kingdom, Indonesia, Israel, Iran, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Netherlands, Brazil, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Russia, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia etc. We are sure that we also can cover the requirements requested by your company you can email us at harshsteel@ymail.com for your instant requirements.
