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ASTM A479 254 SMO Round Bars

A leading exporter, suppliers & stock holder of ASTM A479 254 SMO Round Bars, we also stock Inconel, Monel, Hastelloy Pipes & Flanges.

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Contents-

1. ASTM A479 254 SMO Round Bars Specification

2. ASTM A479 254 SMO Round Bars quality certificates

3. ASTM A479 254 SMO Round Bars Packaging & Shipping

4. ASTM A479 254 SMO Round Bars Useful info

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ASTM A479 254 SMO Round Bars Specification

Standards:

  • ASTM/ASME: UNS S31254
  • EURONORM: FeMi35Cr20Cu4Mo2
  • DIN: 2.4660

Product Name: ASTM A479 254 SMO Round Bars

Detailed specification

Surface Black, peeled, bright, polish/satin, etc.
Technique Forged/Hot Rolled/Cold Drawn
Category 1. Round bar

1)Hot rolled black bar: (5-600)x6000mm or according to your requirement

2)Acid round bar: (5-600)x6000mm or according to your requirement

3)Cold drawn bright bar:(1-200)x6000mm or according to your requirement

4)Polishing round bar: (5-600)x6000mm or according to your requests

2. Square bar

1)Hot rolled black bar: (5*5-600*600)x6000mm or according to your requests

2)Acid square bar: (5*5-600*600)x6000mm or according to your requests

3)Cold drawn square bar: (1*1-100*100)x6000mm or according to your requests

4)Polishing square bar: (5*5-600*600)x6000mm or according to your requests

3. Flat bar

1)Hot rolled flat bar: (3-30)*(10-400mm)*6000mm or according to your requests

2)Cold drawn flat bar: (3-30)*(10-400mm)*6000mm or according to your requests

4. Hexagon bar

1)Hot rolled hexagon bar: (5-300)x6000mm or according to your requests

2) Acid hexagon bar: (5-300)x6000mm or according to your requests

3)Cold drawn hexagon bar: (1-200)x6000mm or according to your requests t

4)Polishing hexagon bar: (5-600)x6000mm or according to your requests

5. Channel bar

1)Hot rolled channel bar: (5-100)x6000mm or according to your requests

2)Acid channel bar: (5-100)x6000mm or according to your requests

3)Cold drawn channel bar: (1-100)x6000mm or according to your requests

6. Threaded bar

1)Hot rolled threaded bar: (5-100)x6000mm or according to your requests

2)Acid threaded bar: (5-100)x6000mm or according to your requests

3)Cold drawn threaded bar: (1-100)x6000mm or according to your requests

7. Angle bar

1)Hot rolled angle bar: (16-200)x(16-200)x(3-18)x(3000-9000)mm or according to your requests

2)Acid angle bar: (16-200)x(16-200)x(3-18)x(3000-9000)mm or according to your requests

3)Cold drawn angle bar: (16-200)x(16-200)x(3-18)x(3000-9000)mm or according to your requests

Diameter± ± 2% tolerance can reach the industry standard
Quality Our production equipment 24 hours of continuous temperature work, to ensure the unity of the product roundness, elongation, tensile strength and yield strength. Welcome customers to our company to detect the products before shipment. For the customers who are not inconvenient, quality assurance can be laid down in the contract, we will take charge of the returning and shipping fee if there is any problems of the product quality, so it will dismiss any of your worry about our products.
Package Standard seaworthy packing (plastic& wooden) or according to the customer’ s requests
Delivery time 7-20 days, according to the quantity
Productivity 1500 tons/month
Remarks OEM/Sample/Mixed item/Factory visit are welcome

Specifications of Alloy 254

  • Alloy 254 to MLA-MPS-254-BAR
  • ASTM A479 Bar UNS S31254
  • ASTM A276 Bar UNS S31254
  • ASTM A182 Forgings UNS S31254 F44
  • ASTM A240 Plate S31254

ASTM A479 254 SMO Round Bars quality certificates

ASTM A479 254 SMO Round Bars delivered with a 3.1 certificate. we can perform the tests required to issue a 3.2 certificate, or a CMTR in accordance with the ASME III Code.

ASTM A479 254 SMO Round Bars Packaging & Shipping

Beyond products as such, we offer some additional services quite worth having.

So, besides the fact that we can arrange freight transportation for you, we can before that:

  • specifically mark parts or packages;
  • provide for a special packing according to what is required by the shipping method or by you.

We mark the ASTM A479 254 SMO Round Bars as needed with the most suitable marking technique.

When packaging and packing, our experienced warehouse staff systematically takes the greatest precautions for your ASTM A479 254 SMO Round Bars to be optimally protected during transportation. We pack the ASTM A479 254 SMO Round Bars according to the appropriate method: strapped pallet, wooden crate, overseas packing (ISPM15).

ASTM A479 254 SMO Round Bars Useful info

Alloys 254 / 254 SMO / 6 Mo is an austenitic stainless steel with a high molybdenum content. Coupled with Nickel and Copper this gives the alloy a good resistance to pitting and crevice corrosion, especially in environments containing halide ions, e.g. chloride, bromide and fluoride solutions.

254 SMO (UNS S31254) may offer a cost effective solution to Nickel and Titanium alloys in these environments.

254 SMO is a high-alloy austenitic stainless steel developed for use in seawater and other aggressive chloride-bearing media. The steel is characterized by the following properties:

  • Excellent resistance to pitting and crevice corrosion
  • High resistance to general corrosion
  • High resistance to stress corrosion cracking
  • Higher strength than conventional austenitic stainless steels
  • Good weldability

Standards

  • UNS S31254
  • EN number 1.4547
  • EN name X1CrNiMoCuN20-18-7
  • W.Nr. 1.4529**
  • SS 2378*
  • AFNOR Z1 CNDU 20.18.06AZ*

* Obsolete. Replaced by EN.

** Nearest equivalent grade.

Product standards

  • Seamless tube and pipe: ASTM A269, A213, A312, NFA 49-217, EN 10216-5
  • Welded tube and pipe: ASTM A249, A269 , A312, A358, A409
  • Fittings: ASTM A182
  • Bar: ASTM A276, A479, EN 10088-3
  • Forged products: ASTM A473

Chemical composition (nominal) %

C Si Mn P S Cr Ni Mo N Cu
≤0.020 ≤0.80 ≤1.00 ≤0.030 ≤0.010 20 18 6.1 0.20 0.7

Chemical Properties

% C Cr Mn Mo N Ni P Si S
254 SMO 0.02 max min: 19.5

max:20.0

1.00 max min: 6.0

max: 6.5

min: 0.18

max: 0.20

min: 17.5

max: 18.0

0.03 max 0.80 max 1.01 max

Mechanical properties

The following figures apply to solution annealed condition seamless tube and pipe.

Wall thickness Proof strength Tensile strength Elong. Hardness
Rp0.2a) Rp1.0a) Rm Ab) A2″ HRB
mm MPa MPa MPa % %
Metric units, at 20°C
<5 ≥310 ≥340 675-850 ≥35 ≥35 ≤96
>5 ≥310 ≥340 655-850 ≥35 ≥35 ≤96

1 MPa = 1 N/mm2

Fabrication

Avoid abrasion against copper/copper alloys or other similar metals which, if present in metallic form, can cause cracks during subsequent welding, hot processing or heat treatment.

Bending

The excellent formability of 254 SMO permits cold bending to very tight bending radii. Annealing is not normally necessary after cold bending.

Corrosion Resistance

  • Excellent resistance to pitting and crevice corrosion due to its high chromium, molybdenum, and nitrogen content
  • Has a very low carbon content, which means there is very little risk of carbide precipitation during heating
  • Possesses very good resistance in water containing chlorides, therefore, it is suitable for use in seawater as it can be exposed to it for prolonged periods without suffering from crevice corrosion

Machinability

  • High work hardening rate combined with a lack of sulfur makes it very difficult to machine
  • Slow speeds, sharp tools, positive feeds, over-powered machine tools, and ample lubrication offer the best results