2016 New Style AISI304| SUS304| EN1.4948 in Mombasa

2016 New Style
 AISI304| SUS304| EN1.4948 in Mombasa

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Chemical Composition of Stainless Steel 304 Table 1. Chemical composition for 304 stainless steel alloys % 304 304L 304H C 0.0 – 0.07 0.0 – 0.03 0.04 – 0.08 Mn 0.0 – 2.0 0.0 – 2.00 0.0 – 2.0 Si 0.0 – 1.00 0.0 – 1.00 0.0 – 1.0 P 0.0 – 0.05 0.0 – 0.05 0.0 – 0.04 S 0.0 – 0.03 0.0 – 0.02 0.0 – 0.02 Cr 17.50 – 19.50 17.50 – 19.50 ...


  • Length: 3-5.8mm or Customization
  • Surface: black, peeled, or rough turned
  • Heat treatment: air-cooling, normalized, annealed, Q&T
  • Smelting process: EAF+LF+VD
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    We keep improving and perfecting our products and service. At the same time, we work actively to do research and development for 2016 New Style AISI304| SUS304| EN1.4948 in Mombasa, We are confident to make great achievements in the future. We are looking forward to becoming one of your most reliable suppliers.


    Chemical Composition of Stainless Steel 304

    Table 1. Chemical composition for 304 stainless steel alloys

    %

    304

    304L

    304H

    C

    0.0 – 0.07

    0.0 – 0.03

    0.04 – 0.08

    Mn

    0.0 – 2.0

    0.0 – 2.00

    0.0 – 2.0

    Si

    0.0 – 1.00

    0.0 – 1.00

    0.0 – 1.0

    P

    0.0 – 0.05

    0.0 – 0.05

    0.0 – 0.04

    S

    0.0 – 0.03

    0.0 – 0.02

    0.0 – 0.02

    Cr

    17.50 – 19.50

    17.50 – 19.50

    17.00 – 19.00

    Ni

    8.00 – 10.50

    8.00 – 10.50

    8.00 – 11.00

    Fe

    Balance

    Balance

    Balance

    N

    0.0-0.11

    0.0-0.11

    0.0 – 0.10

    Properties of Stainless Steel 304

    Mechanical Properties of Stainless Steel 304

    Table 2a. Mechanical properties for 304 stainless steel alloys – sheet up to 8 mm thick

    Grade

    304

    304L

    304H

    Tensile Strength (MPa)

    540 – 750

    520 – 700

    -

    Proof Stress (MPa)

    230 Min

    220 Min

    -

    Elongation A50 mm

    45 Min %

    45 Min %

    -


    Table 2b. Mechanical properties for 304 stainless steel alloys – plate from 8 – 75 mm thick

    Grade

    304

    304L

    304H

    Tensile Strength (MPa)

    520 – 720

    500 – 700

    -

    Proof Stress (MPa)

    210 Min

    200 Min

    -

    Elongation A5

    45 Min %

    45 Min %

    -


    Table 2c. Mechanical properties for 304 stainless steel alloys – bar and section up to 160 mm diameter / thickness

    Grade

    304

    304L

    304H

    Tensile Strength (MPa)

    500 – 700

    500 – 700

    500 – 700

    Proof Stress (MPa)

    190

    175 Min

    185 Min

    Elongation A50 mm

    45 Min %

    45 Min %

    40 Min %

    Hardness Brinell

    215 Max HB

    215 Max HB

    -

    Physical Properties of Stainless Steel 304

    Table 3. Physical properties for 304 stainless steel alloys

    Property

    Value

    Density

    8.00 g/cm3

    Melting Point

    1450 °C

    Modulus of Elasticity

    193 GPa

    Electrical Resistivity

    0.072 x 10-6 Ω.m

    Thermal Conductivity

    16.2 W/m.K

    Thermal Expansion

    17.2 x 10-6 /K

    Alloy Designations

    Stainless steel 304 also corresponds to the following standard designations and specifications:

    Euronorm

    UNS

    BS

    En

    Grade

    1.4301

    S30400

    304S15

    304S16

    304S31

    58E

    304

    1.4306

    S30403

    304S11

    -

    304L

    1.4307

    -

    304S11

    -

    304L

    1.4311

    -

    304S11

    -

    304L

    1.4948

    S30409

    304S51

    -

    304H

    Corrosion Resistance of Stainless Steel 304

    Stainless steel 304
    has excellent corrosion resistance in a wide variety of environments
    and when in contact with different corrosive media. Pitting and crevice
    corrosion can occur in environments containing chlorides. Stress
    corrosion cracking can occur at temperatures over 60°C.

    Heat Resistance of Stainless Steel 304

    Stainless steel 304 has
    good resistance to oxidation in intermittent service up to 870°C and in
    continuous service to 925°C. However, continuous use at 425-860°C is
    not recommended if corrosion resistance in water is required. In this
    instance 304L is recommended due to its resistance to carbide
    precipitation.

    Where high strength is required at temperatures above 500°C and up to
    800°C, grade 304H is recommended. This material will retain aqueous
    corrosion resistance.

    Fabrication of Stainless Steel 304

    Fabrication of all stainless steels should
    be done only with tools dedicated to stainless steel materials. Tooling
    and work surfaces must be thoroughly cleaned before use. These
    precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.

    Cold Working of Stainless Steel 304

    Stainless steel 304 readily
    work hardens. Fabrication methods involving cold working may require an
    intermediate annealing stage to alleviate work hardening and avoid
    tearing or cracking. At the completion of fabrication a full annealing
    operation should be employed to reduce internal stresses and optimise
    corrosion resistance.

    Hot Working of Stainless Steel 304

    Fabrication methods, like forging, that involve hot working should
    occur after uniform heating to 1149-1260°C. The fabricated components
    should then be rapidly cooled to ensure maximum corrosion resistance.

    Heat Treatment of Stainless Steel 304

    Stainless steel 304 cannot be hardened by heat treatment.

    Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C.

    Machinability

    Stainless steel 304 has good machinability. Machining can be enhanced by using the following rules:

    • Cutting edges must be kept sharp. Dull edges cause excess work hardening.

    • Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material.

    • Chip breakers should be employed to assist in ensuring swarf remains clear of the work

    • Low thermal conductivity of austenitic alloys results in heat
      concentrating at the cutting edges. This means coolants and lubricants
      are necessary and must be used in large quantities.

    Welding of Stainless Steel 304

    Fusion welding performance for Stainless steel 304 is excellent both with and without fillers. Recommended filler rods and electrodes for stainless steel 304 is grade 308 stainless steel.
    For 304L the recommended filler is 308L. Heavy welded sections may
    require post-weld annealing. This step is not required for 304L. Grade
    321 may be used if post-weld heat treatment is not possible.

    Applications of Stainless Steel 304

    Stainless steel 304 is typically used in:

    • Sinks and splashbacks

    • Saucepans

    • Cutlery and flatware

    • Architectural panelling

    • Sanitaryware and troughs

    • Tubing

    • Brewery, dairy, food and pharmaceutical production equipment

    • Springs, nuts, bolts and screws

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  • Punching and drifting a sq. bar. A few holes punched and drifted. Two round holes and a single sq. gap on the bias.



    Like a cassette stove, I tried to make a small rocket stove with a portable property that it is easy to ignite and extinguish and can be easily used outdoors regardless of the season.

    It was not exaggeration of the moment of bliss, but I wanted to taste a certain amount of enjoyment, such as brewing coffee in the garden or steaming the potatoes · I made it small.

    * Combustion version will be uploaded at a later date.

    · Of course, in emergencies it will be of great help as a thermal energy source.
    * Naming taken from the appearance like a fire hydrant: Please see how to make fire man.

    * Combustion → Extinguishment → Movie of cleanup is planned to be up soon.

    * Twig shoot bamboo is fuel (energy) = small diameter:
    I think that you can pick up a number of Shinkotake and twigs in the surrounding forests and dry it, and enjoy using it as a fuel to boil water or cook easily.
    · It is ideal that it keeps burning in the time according to the necessity with the smallest possible flame (it is unexpected that it will be used for a long time by burning fire gun).

    * Easy way of making:
    Just connect the water pipe to the “T” with a fitting and the rocket stove prototype is completed.
    Next, fill the holes above and below the large coffee cans, insert the insulation through the tubes and close them with heat resistant putty.
    Drilling the lid and the ash receiver etc into empty cans work.

    * Measures against wind, Extinguishing with water → Easy cleanup:
    Most of the rocket stove seems to have little consideration for fire fighting, but when you actually use it, you will feel “uneasy about the wind that builds up during burning”, ” Handling of heat “may take time and may be troublesome.
    However, since the rocket stoves using water pipes can be extinguished easily by putting in water, it is also possible to cool the heat promptly.
    In addition, burning residue is discharged together with water.

    · Measures to strengthen the wind:
    When the wind is strengthened during burning, it is possible to seal the rocket stove (although there is a word) by closing the mouth of each pipe exactly with empty cans.

    * High material cost? :
    Steel pipes that are also used for water pipes are thick, so they are no problem for quenching with water, and they will not last for 10 years and 20 years without worry of pain due to high temperature or corrosion due to rust.
    · “Lid / ash receiver” made from empty cans is regarded as “consumable material”, and it is made on the premise that it will be damaged by using it.

    Thank you for your viewing for a long time.
    It would be greatly appreciated if you could make a rocket stove of everyone and serve as a relaxing time with a rocket stove.

    Creative silver studio Otanko Nasu!

    http://craftsman-na.com/silver-works/

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