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Grade 439 Stainless Steel Hot Rolled Plate Good Corrosion / Acid Resistance

Good quality 304 Stainless Steel Coil for sales
Good quality 304 Stainless Steel Coil for sales
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Grade 439 Stainless Steel Hot Rolled Plate Good Corrosion / Acid Resistance

China Grade 439 Stainless Steel Hot Rolled Plate Good Corrosion / Acid Resistance supplier

Large Image :  Grade 439 Stainless Steel Hot Rolled Plate Good Corrosion / Acid Resistance

Product Details:

Place of Origin: CHINA Maidland
Brand Name: CHENGDE
Certification: CE PED W0
Model Number: 439

Payment & Shipping Terms:

Minimum Order Quantity: negotiation
Price: negotiation
Packaging Details: Water proof Export package
Delivery Time: around 6 weeks
Payment Terms: 100% payment by irrevocable L/C at sight
Supply Ability: 1000T/m
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Detailed Product Description
Description: 439 Hot Rolled Stainless Steel Plate And Sheet Thickness: 3mm~30mm
Finish: No.1 Width: 800mm~1600mm, Or Any Lenghth You Need
Length: 2m,4m,6m,8m,12mm Or Any Other Length As Required Country Of Origin: China

Grade 439 Hot rolled Stainless Steel Plate Thickness 3mm~60mm

 

Main Specifications:

 

1. Standard: ASTM,JIS,EN
2. Grade: 439
3. Thickness: 3mm - 60mm
4. Width: 800mm-1600mm, or as cusomer needs
5. Length: generally 2m~12m, or cut to as request
6. Surface finish: No.1, Hot rolled and Pickled

7. Shipping terms:CIF CFR

8.Payment terms: full payment by irrevoable L/C at sight
 

 

439 - UNS S43035:

AISI Type 439 (also known as ASTM XM-8) is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. Type 439 is a titanium stabilized, 18 percent chromium alloy that may be used in many oxidizing environments where Type 304 is considered adequate in terms of general corrosion resistance but is subject to chloride stress corrosion cracking. It is often used in place of Type 409 where higher thermal conductivity is required. Type 439 does not require annealing after welding to restore ductility or to provide intergranular corrosion resistance. Type 439 also has superior formability capabilities and is heavily used in the automotive industry; it can be work hardened slightly to increase tensile strength.

 

Physical Properties:

  • Melting Point: 2741°F (1505°C)
  • Density: 0.278 lbs/in3 / 7.70 g/cm3
  • Modulus of Elasticity in Tension: 28 X 106 psi / 193 GPa

Mechanical Properties:

  • Tensile Strength Minimum (psi): 66,000 - 70,000
  • Yield Strength Minimum 0.2% offset (psi): 43,000 - 48,000
  • % Elongation in 2” Minimum: 32 - 36%
  • Hardness: Rockwell B74 - 78

Composition:

  • Carbon: 0.025 max
  • Manganese: 0.50
  • Silicon: 0.75
  • Chromium: 17.00 - 19.00
  • Nickel: 0.50
  • Titanium: ≥ 0.20+4(C+N)min - 0.50 max
  • Iron: Balance
  • All values are maximum values unless otherwise specified. Values derived from applicable AMS and ASTM specifications.

Heat Treatments: Type 439 is not hardenable by heat treatment

  • Annealing:
  • Heat slowly to 1450 -1600°F (790 - 871°C), quickly cool. Slow cooling produces less desirable impact transition behavior. Ferritic stainless steels containing more than about 12% chromium have a susceptibility to a phenomenon known as 885°F (475°C) embrittlement. This embrittlement is observed as a degradation of impact properties at room temperature resulting from very long exposures in the temperature range of 700 to 1000°F (371 to 537°C). If service temperatures are cycling through this range, exposure above, about 1050°F (565°C), restores the room temperature toughness properties. When there have been long dwell times near 885°F (475°C), service temperatures that cycle above, about 1050°F (565°C), are beneficial rather than detrimental.

Corrosion Resistance:

AISI Type 439 is resistant to attack by potable water and many mildly or moderately corrosive chemical environments which are oxidizing in nature. In various chloride solutions, studies have shown pitting resistance of Type 439 to be superior to that of Type 304. In addition, Type 439 is not subject to stress corrosion cracking which may cause premature failure of austenitic steels in chloride bearing environments such as hot waters used in heat exchangers.

 

Grade 439 Stainless Steel Hot Rolled Plate Good Corrosion / Acid Resistance

 

 

 

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