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1.4307

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1.4307 properties and heat treatment forged piece, Including 1.4307 application and specifications, We have all specifications,Including 1.4307 steel plate, 1.4307 sheet, 1.4307 square steel, 1.4307 flat bar,1.4307 round bar,1.4307 forgings, we can own production and sales.


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forged/hot rolling/ extrusion of steel


We can produce the 1.4307 has the following specifications:

Round bar steel: 1mm to 3000mm

Square-shape steel: 1mm to 2000mm

Plate steel:0.1mm to 2500mm

Width: 10mm to 2500mm

Lenth: We can supply any lenth based on the customer's requirement.

Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.

Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement

Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement

Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.

Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.

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Chemical composition % of the ladle analysis of grade 1.4307 and Standards

Alloy 304L (UNS S30403) stainless steel tube is a variation of the 18% chromium – 8% nickel austenitic alloy, the most familiar and most frequently used alloy in the stainless steel family. This alloy may be considered for a wide variety of applications and exhibits good corrosion resistance, ease of fabrication, excellent formability, and high strength with low weight.

Type 304L is a lower carbon variant of Grade 304 – the steel can be welded without the resulting issue of carbon precipitation (precipitation of chromium carbide as heat is applied during the Welding process which depletes the chromium element of the steel thus reducing its anti-corrosive/oxidation effectiveness).

As a result, Type 304L stainless steel is a sort after material for use in severely corrosive conditions. Weld annealing is only necessary in applications where stress loads are excessive.

This steel Grade is found in a variety of commercial sectors, particularly in the chemical industry.

Benefits of using 304L stainless steel
  • Low carbon content eliminates carbon precipitation in the Welding process
  • Can be used in severe corrosive environments
  • Weld annealing only required in high stress applications
  • Very similar to Type 304
304 & 304L plate and pipes have similar properties and in certain cases are stocked with Dual Certification, where it is concluded that each item has properties and a composition which comply with both steel types. Grade 304H cannot be included in this equation due to the steel's higher carbon content which is intended for use in elevated temperature applications.

 

C
Si
Mn
P
S
Cr
Mo
Ni
N
Cu
max. 0,03
max. 1,00
max. 2,00
max. 0,045
max. 0,03
18 - 20
-
8 -12
-
-

 

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Chemistry Data
Carbon
0.03 max
Chromium
18 - 20
Iron
Balance
Manganese
2 max
Nickel
8 - 12
Phosphorus
0.045 max
Silicon
1 max
Sulphur
0.03 max
General Information
Principal Design Features
A low carbon version of type 304 stainless. 304L is used almost interchangeably with 304 but is preferred for Welding operations. It offers a good combination of strength, corrosion resistance and fabricability.

Applications
The list is endless. Almost every conceivable industry uses some of this material in some way. Everything from stovetops to ball point pen barrels to flatware to fasteners has been fabricated from this alloy.

Machinability
Slow speeds and heavy feeds will minimize this alloys tendency to work harden. Due to long stringy chips, the use of chip breakers is advisable. Many companies now offer premium machinability grades, such as CarTech with their Project 70 and 7000 series.

All fusion and resistance processes have been successfully employed in Welding 304. AWS E/ER308 or 312 filler metal is recommended. Its low carbon, means that the is less carbide precipitation at the weld boundaries resulting in stronger welds.

Hot Working
Forging, heading and other hot working should follow uniform heating to 2100-2300 F (1149-1260 C). Rapid cooling is necessary to attain maximum corrosion resistance in finished parts.

Cold Working
Readily fabricated by most cold working methods, 304L may require intermediate annealing to avoid cracking or tearing from radical deformation. Full annealing should follow any operation to reduce internal stress and optimize corrosion resistance.

Annealing
1850-2050 F (1010-1121 C) followed by rapid cooling.

Hardening
This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.

Physical Data
Density (lb / cu. in.)
0.29
Specific Gravity
7.9
Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
0.12
Electrical Resistivity (microhm-cm (at 68 Deg F))
432
Melting Point (Deg F)
2650
Modulus of Elasticity Tension
28
Mechanical Data
Form
Plate
Condition
Test Specimen Annealed
Temper
70
Tensile Strength
79
Yield Strength
33
Elongation
60




Machining performance

Download 1.4307 the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>


Principal Design Features

One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.


Machinability

Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.


Heat Treatment

CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.


Welding

Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.


Forging

Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.





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