Cold rolled stainless steel bright bar rod manufacturing company in India

Cold rolled stainless steel bright bar rod manufacturer Cold rolled stainless steel bright bar rod suppliers Cold rolled stainless steel bright bar rod stockists Cold rolled stainless steel bright bar rod exporter Bhopal, Madhya Pradesh

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Cold rolled stainless steel bright bar

WHY BUY A FULL BAR WHEN YOU JUST NEED A SMALL VOLUME?

We have our own modern steel mills equipped with advanced facilities and latest technologies. Our technical knowhow has enabled us to maintain stringent quality control, from scrap handling to steel making and further processing until the final product is delivered to you. The trading division deals with a broadly diversified product portfolio comprising of a variety of long steels for supply to a wide array of economic sectors such as oil and gas, petrochemical, palm oil and oleochemical, food and beverage, consumer electronics, automotive, engineering-fabrication intensive sectors, constructions and infrastructure. In fact, our trading division is one of the leading suppliers in the infrastructure and engineering-fabrication intensive sectors In addition. In short, we also can be said that MD Exports LLP specialise in the bar, rod of various shapes, sizes and dimensions to our customers and maintains a commanding presence as one of the country’s top distributors of a diverse range of high grade steel products such as Round Bar, Bright Bar, Square Bar, Hex Bar, Rectangular Bar, Flat Bar, Black Bar, Forged Bar and Stainless Steel Rod etc..

Cold rolled stainless steel bright bar specification

Cold rolled stainless steel bright 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.
Cold rolled stainless steel bright bar
Manufacturer | Exporter | Suppliers | StockistCold rolled stainless steel bright bar manufacturer India

Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface: hrap, hot rolled pickled or sand blasting finished, cold drawn, bright, polished, hairline
Size: Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Material Grades: AISI 201, AISI 202, AISI 301, AISI 302, AISI 303, AISI 304, AISI 304L, AISI 309, AISI 310, AISI 316, AISI 316L, AISI 321, AISI 347, AISI 410, AISI 420, AISI 430, AISI 431, AISI 630, 15-5PH, 17-4PH
Shape Manufactured: Flat Bar, Square Bar, Round Bar, Rings, Hollows, Blocks and special Shapes.

Specifcation: As per AISI / DIN / EN / JIS / ASTM / ASME / NACE / B.S. / I.S. / AFNOR

Chamfering: Machined chamfered at 30° / 45° / 60° either at one end or both ends as per customer’s requirement.

H8 = Precision Ground
H9 = Bright Drawn
H10 = Smooth Turned

Round bar weight calculations

Most common stainless steel Bright Bar grades include:

Most common Stainless Steel Bar Shape include:

  • Stainless Steel Round Bars
  • Stainless Steel Rectangular Bars
  • Stainless Steel Flat Bars
  • Stainless Steel Hexagonal Bars
  • Stainless Steel Square Bars
  • Stainless Steel Hollow Bars
  • Stainless Steel Round Corner Square Bars
  • Stainless Steel Hollow Ring Bars
  • Stainless Steel Flat Block Bars
  • Stainless Steel Circular Bars

 

Test Certificate Mill Test Certificate as per EN 10204 / 3.1B



 
DEVIATION FROM STRAIGHTNESS
Product Dimension Max Deviation in mm within a 1mtr length measured at least 150mm from either end of bar
Round Bar 1.0mm
Square & Hexagon Bar < or = 75mm 1.0mm
Square & Hexagon Bar > 75mm 1.5mm
Flat Bar Width < 120mm On Width: 1.5mm
Flat Bar Width < 120mm On Thickness: 2.0mm
Flat Bar Width > or = 120mm On Width: 2.0mm
Flat Bar Width/Thickness < 10.1 On Thickness: 2.5mm
Flat Bar Width > or = 120mm On Width: 2.5mm
Flat Bar Width/Thickness > or = 10.1 On Thickness: 3.0mm

Cold rolling, annealing, and pickling
The cold rolling of stainless steel is predominately carried out in cluster mills. These mills have small-diameter working rolls, each backed by two or three layers of supporting rolls, and are very suitable for cold-rolling wide sheets of stainless steel to close tolerances and improved surface finishes.

The mills are equipped to measure strip thickness, profile, and flatness, and have various actuators to control the strip profile and flatness. The rolling schedule defines the number of passes the strip has to go through and which thickness reduction per pass will be used when rolling from the starting gauge to the desired final gauge. During the cold rolling process, the material deforms and strain hardens to the extent that only a few percent of the original tensile elongation remains. Typical cold rolling reduction is 50–90% and depends on the work hardening behavior of the steel grade.

To restore the material properties after cold rolling, a heat treatment is needed to recover and recrystallize the microstructure. This is done in a continuous annealing and pickling line. The majority of the cold rolled products have a 2B/2BB surface, which means that no mechanical scale breaking is used; all oxide scale is removed by chemical means. This is achieved by passing the strip through several consecutive mixed acid pickling baths, and then finishing off with high pressure water rinsing. Many of these lines also have some type of flatness improvement equipment installed.

Another route after cold rolling is to use a bright annealing line (BA-line) to restore the material properties. In such a line, the strip is heat treated in a protective atmosphere, often hydrogen or a mixture of hydrogen and nitrogen. As no oxygen is available inside the furnace, no additional oxide scale is formed and whatever oxide remains on the strip is reduced to metal. If the cooling is also done in a protective environment, the strips can, after skin pass rolling, exhibit a mirror like finish, referred to as 2R or BA (Bright Annealed).

Skin pass rolling (also called temper rolling) is a very light cold-rolling treatment that involves the least amount of reduction (0.5–1%). The purpose of skin passing is to improve the strip shape and remove minor surface blemishes, create the desired surface finish, and to produce the appropriate mechanical properties.



 
Cold rolled stainless steel bright bar price list

» Click here to view grade wise Price list for Cold rolled stainless steel bright bar

Cold rolled stainless steel bright bar leading manufacturers

We are distributor, delares & suppliers of Outokumpu round bar, Stainless steel bar, Thyssenkrupp round bar, Steel bar, Mukand Ltd Round Bar. You can also download the PDF file of Outokumpu stainless steel bar sizes and specifications, Outokumpu stainless steel bar brochure, Stainless Steel Bar and Long Products, European Stainless Bar and A Machining Comparison between Outokumpu PRODEC® and Standard Stainless Bar.

 Thyssenkrupp / Thyssenkrupp steel bar

Thyssenkrupp / Thyssenkrupp Round bar

Outokumpu / Outokumpu round bar

Outokumpu / Outokumpu Round bar / Outokumpu Latest Price

Mukand Ltd

Mukand / Mukand steel bar
Cold rolled stainless steel bright bar buying tips

Stainless steel is often selected for its high corrosion resistance in addition to strength and fatigue endurance. If you want to buy Cold rolled stainless steel bright bar in India, Saudi Arabia, South Africa, Malaysia, Indonesia, Kuwait, UAE, Korea, Russia or anywhere in the world here are few tips to buy quality products on time:

  1. Always ask for Cold rolled stainless steel bright bar Mill Certificate
  2. Check after sales service through their existing clientile, you can also buy small quantity first to check the service
  3. Material with ASTM standards
  4. Competitive price
  5. Beware about used / surplus material
  6. Beware about rejected material, you can ask for third party inspection for assured material
  7. Product replacement policy
  8. Good Packing for sea and Air transport
  9. For high quality choose ISO certified company
  10. Purchase directly from manufacturers for Competitive price & accurate materials
Cold rolled stainless steel bright bar buyers

Cold rolled stainless steel bright bar can be used for a number of different applications, including:

  • Screw machine products
  • Shafts
  • Valves
  • Fittings
  • Gears
  • Fasteners
  • Food processing equipment
  • Instruments
  • Screws
  • Bearings
  • Mining machinery
  • Aircraft parts, exhaust manifolds
  • Pumps
Cold rolled stainless steel bright bar case studies

Cold rolled stainless steel bright bar case studies

its about one of our client in Abu Dhabi city, we have exported 1 Ton Hot rolled bar he wanted to buy the Bar at low price. Thus brought Bar from China, but the bar failed the test Later he brought the Bar from India, but was duped by a dummy company. The customer was under heavy pressure from the end user. He was facing a legal prosecution as had under contract obliged to complete the project within a specific time frame. He went to several big European brands but all of them offered delivery of 12-15 weeks. He again resorted to buying from a few select Indian and Korean Suppliers. We got the mail. We replied within 25 minutes. He asked for a Third Party Inspection and a 3.2 Certification. We accepted the terms. Within a span of 90 minutes we had the sales contract from the client. We supplied the goods and the client was relieved from the heavy pressure he was under. Now the client normally buys from big Manufacturers , but gives us opportunities for urgent needs and maintenance projects.

We Export To:

 

 
We have our strong network within India’s all states including Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Himachal Pradesh, Jammu and Kashmir, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Punjab, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttar Pradesh, Uttarakhand, West Bengal to supply Cold rolled stainless steel bright bar within 4 -12 hrs.

Cold rolled stainless steel bright bar related products & stock
Bar & Rod, we manufacture, at a glance:

List of Countries where MD Exports LLP supply all size & grade Bars / Rods:


Why Should I Order Cold rolled stainless steel bright bar From MD Exports LLP?
  • MD Exports LLP is ISO certified
  • MD Exports LLP offers overnight delivery for Cold rolled stainless steel bright bar
  • Professional packaging ensures that your product is received in top condition
  • Our staff has in-depth product knowledge and extensive cross training. They are motivated to give you quick, accurate information-first call, every call!
  • Contact us and get the right answers right away!
Why use Cold rolled stainless steel bright bar
  • The benefits of controlled rolling include better mechanical properties and energy savings
  • High strength; Durable; High load bearing capacity
  • The cold rolled process creates a finished product that is more precise dimensionally than a hot rolled product. This is because it is already closer to the finished dimension since it has already gone through the cooling process.
  • Cold rolled steel is limited to just a few shapes, such as round, square, flat and variations of those types of shapes.
  • Finished products created by the cold rolled steel process include bars, strips, rods and sheets which are usually smaller than the same products available through hot rolled methods
  • The smaller products are also much more tolerant than the larger hot rolled versions.

Cold Rolled

“Cold Roll” is the nickname for steel that is produced in the “cold rolling” method, processed at close to normal room temperatures. Cold Roll is limited to a few shapes but comes in many finishes and offers superior strength and machinability.

Cold rolled steel is essentially hot rolled steel that has had further processing. The steel is processed further in cold reduction mills, where the material is cooled (at room temperature) followed by annealing and/or tempers rolling. This process will produce steel with closer dimensional tolerances and a wider range of surface finishes. The term Cold Rolled is mistakenly used on all products, when actually the product name refers to the rolling of flat rolled sheet and coil products.

Cold rolled stainless steel bright bar advantages

Cold finishing, which usually consists of cold drawing and/or turning, grinding and polishing, results in higher yield points and has these four main advantages:

  • The first is finish. Cold drawing through a die imparts a bright new surface.
  • The second advantage is size tolerance, concentricity, and straightness. C.F. bars are close dimensionally and in roundness. A 1” diameter C.F. bar of AISI 1018 is plus 0.000 in, minus 0.002 in. A hot rolled bar of the same diameter is plus or minus 0.009.
  • The third advantage is cold drawing. Cold drawing increases the yield and tensile strengths, often eliminating further costly thermal treatments.
  • The fourth and the most important for many jobs is machinability, which is often improved by as much as 20%. This can mean savings through increased tool life, higher cutting speeds and a better surface finish.
Cold rolled stainless steel bright bar Useful Information

You can also read about:

Stainless Steel Grades, Compositions & Typical Mechanical Properties

Mechanical Properties apply to Rolled Products

EN BS AISI EN No. Comp Comp Comp Comp Comp Mech Mech Mech
Obsolete C Cr Ni Mo Other Proof 0.2%Nmm Tensile Nmm Elong %
1.4000 403S17 410S - 0.08x 12 - - - 20-250 400-600 19
1.4002 405S17 405 - 0.08x 12 - - 0.2 Al 210-250 400-600 17
1.4003 - - - 0.03x 11 0.5 - - 250-320 450-650 18-20
1.4016 430S17 430 60 0.08x 17 - - - 240-280 430-630 18-20
1.4113 434S17 434 - 0.08x 17 - 1 - 260-280 450-630 18
1.4509 - - - 0.015x 18 - - Nb, Ti - - -
1.4510 - 430Ti - 0.05x 17 - - 0.6 Ti 230-240 420-600 23
1.4511 - 430Nb - 0.05x 17 - - 0.6 Nb 230-240 420-600 23
1.4512 409S19 409 - 0.03x 11 - - 0.5 Ti 210-220 380-560 25
1.4521 - (444) - 0.025x 17 - 2 0.6 Ti - - -
1.4006 410S21 410 56A .08-.15 12 - - - 400-450 550-850 12-20
1.4005 416S21 416 56AM .08-0.15 12 - - .35xS 450 650-850 12
1.4021 420S29 420 56B .16-.25 12 - - - 450-550 650-950 10-15
1.4028 420S45 420 56D .26-.35 12 - - - 600 740-1000 10-15
1.4029 416S37 416 56CM .25-.32 12 - - .35xS - - -
1.4057 431S29 431 57 .12-.22 15 2 - - - - -
1.4104 416S29 416 56BM .10-.17 16 - 0.4 .35xS 500 650-850 10
1.4112 - 440B - .85-.95 17 - 1.0 0.1V - 900max 12
1.4125 - 440C - .95-1.2 17 - 0.6 - - 900max 12
1.4594 460S52 - - 0.7x 14 5 1.5 1.5 Cu 700-1000 930-1270 10
1.4749 - 446 - .15-.20 26 - - 0.2N - - -
1.4301 304S31 304 58E 0.07x 18 8 - - 210-260 520-750 45
1.4303 305S19 305 - 0.06x 18 11 - - 200-250 500-650 45
1.4305 303S31 303 58M 0.10x 18 8 - 0.35xS 190-230 500-700 35
1.4306 - 304L - 0.030x 18 10 - - 200-250 500-670 45
1.4307 304S11 304L - 0.030x 18 8 - - 200-250 500-670 45
1.4310 301S21 301 - 0.05/0.1 17 6 - - 250-280 600-950 40
1.4311 304S61 304LN - 0.030x 18 9 - 0.22xN 270-320 550-750 40
1.4372 - 201 - 0.15x 17 4.5 - 6.5Mn 330-380 750-950 40

Mechanical Properties apply to Rolled Product

EN BS AISI EN No Comp Comp Comp Comp Comp Mech Mech Mech
Obsolete C Cr Ni Mo Other Proof 0.2% Nmm Tensile Nmm Elong %
1.4401 316S31 316 58J 0.07x 17 11 2 - 220-270 520-680 40
1.4404 316S11 316L - 0.030x 17 11 2 - 220-270 520-680 40
1.4406 316S61 316LN - 0.030x 17 11 2 0.22xN 280-330 580-780 40
1.4432 316S13 316L - 0.030x 17 11 2.5 - 220-270 520-700 40
1.4435 316S13 316L - 0.030x 17 13 2.5 - 220-270 520-700 40
1.4436 316S33 316 58J 0.05 17 11 2.5 - 220-270 500-730 40
1.4438 317S12 317L - 0.030x 18 13 3 - 220-270 520-720 35
1.4439 - - - 0.030x 17 13 4 0.22xN 270-320 580-780 35
1.4541 321S31 321 58B 0.08x 18 9 - 0.5Ti 200-250 500-720 40
1.4550 347S31 347 58F 0.08x 18 9 - 0.5Nb 200-250 500-720 40
1.4571 320S31 (316Ti) - 0.08x 17 11 2 0.5Ti 220-270 520-690 40
1.4539 904S13 - - 0.020x 19 24 4 2xCu 220-270 520-730 35
1.4547 - - - 0.020x 20 18 6 1xCu 300-350 650-850 35
1.4833 309S16 309 - 0.15x 22 12 - -
1.4845 310S24 310 - 0.10x 25 20 - -
1.4878 321S51 321H - 0.10x 18 9 - 0.6TI

 

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