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Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface

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Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface

Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface
Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface

Large Image :  Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface

Product Details:
Place of Origin: MAINLAND CHINA
Brand Name: UST
Certification: ISO 9001:2008
Model Number: ASTM 2507
Payment & Shipping Terms:
Minimum Order Quantity: 1 Metric ton
Price: USD 2900-4000 / Metric Ton
Packaging Details: In standard export packing and seaworthy material with rectangular shape bundle, covered with tarpaulin, in ontainers or in bulk, or upon request
Delivery Time: 15-35 days
Payment Terms: L/C, T/T, D/A, D/P
Supply Ability: 1000 Metric Tons per Month
Detailed Product Description
Matrial: Stainless Steel Standard: GB, ASTM, DIN,JIS
Grade: 2507 Diameter: 4-800mm
Length: Any Length Below 10 Meters Shape: Round Bar
Techniques: Cold Drawn; Hot Rolled; Forged Surface: Black, Bright, Polished, Peeled, Or Upon Request
Ultrasonic Test: 100% UT Passed Processing: Annealed Or Quenched And Tempered Provided
End: Beveled, Plain End As Required Quality Inspection: SGS, BV Etc.
Service: Cutting Service And 3rd Party Inspection Is Provided
High Light:

stainless round bar

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stainless steel round bar

INTRODUCTION

 

Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum, and nickel levels provide excellent resistance to pitting, crevice, and general corrosion.

 

APPLICATIONS

  • Oil and gas industry equipment
  • Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems
  • Chemical process industries, heat exchangers, vessels, and piping
  • Desalination plants, high pressure RO-plant and seawater piping
  • Mechanical and structural components, high strength, corrosion-resistant parts
  • Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping

Steel Grade 2507 Application Mentioned above
Shape Round Bar Standard GB, ASTM, DIN,JIS
Dimension Φ4-800 mm; length below 10m Surface Black, Bright, Polished, Peeled
Technique Cold drawn; Hot rolled; Forged Ultrasonic Test 100% UT Passed

 

DELIVERY CONDITIONS

 

  Diameter (mm)
Cold drawn 4-60
Peeled 30-100
Grinded 4-600
Turned 130-800
Hot Rolled 20-280
Hot Forged 130-800

 

EQUIVALENT GRADES

  • ASTM/ASME: UNS S32750
  • EURONORM: X2CrNiMoN25-7-4
  • DIN: 1.4410

 

CHEMICAL COMPOSITION (%)

 

  C Si Mn P S Cr Mo Ni N Cu W

2507

S32750

0.02

0.80

1.20

0.035

0.020

24.00

26.00

3.00

4.00

6.00

8.00

0.20

0.30

0.50

1.00

0.50

1.00

 

MECHANICAL PROPERTIES

Grade Tensile Strength ksi (min) Yield Strength 0.2% ksi (min) Elongation % Hardness (Rockwelll C) MAX
2507 116 80/91 15 217

 

Corrosion Resistance

General Corrosion

  • high chromium and molybdenum content of 2507 makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid.
  • provides excellent resistance to inorganic acids, especially those containing chlorides.
  • can be used in dilute hydrochloric acid.
  • Pitting need not be a risk in the zone below the borderline in this figure, but crevices must be avoided.

Intergranural Corrosion

  • Low carbon content greatly lowers the risk of carbide precipitation at the grain boundaries during heat treatment.
  • Is highly resistant to carbide-related intergranular corrosion.

Stress Corrosion Cracking

  • Duplex structure of 2507 provides excellent resistance to chloride stress corrosion cracking (SCC).
  • Superior to 2205 in corrosion resistance and strength.
  • 2507 is especially useful in offshore oil and gas applications and in wells with either naturally high brine levels or where brine has been injected to enhance recovery.

Pitting Corrosion

  • Different testing methods can be used to establish the pitting resistance of steels in chloride-containing solutions.

Crevice Corrosion

  • Highly resistant to crevice corrosion.

 

PROCESSING

 

Hot Forming

 

2507 should be hot worked between 1875°F and 2250°F. This should be followed by a solution anneal at 1925°F minimum and a rapid air or water quench.

 

Cold Forming

 

Most of the common stainless steel forming methods can be used for cold working 2507. The alloy has a higher yield strength and lower ductility than the austenitic steels so fabricators may find that higher forming forces, increased radius of bending, and increased allowance for springback are necessary. Deep drawing, stretch forming, and similar processes are more difficult to perform on 2507 than on an austenitic stainless steel. When forming requires more than 10% cold deformation, a solution anneal and quench are recommended.

 

Heat Treatment


2507 should be solution annealed and quenched after either hot or cold forming. Solution annealing should be done at a minimum of 1925°F. Annealing should be followed immediately by a rapid air or water quench. To obtain maximum corrosion resistance, heat treated products should be pickled and rinsed.

 

Welding


2507 possesses good weldability and can be joined to itself or other materials by shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), plasma arc welding (PAW), flux cored wire (FCW), or submerged arc welding (SAW). 2507/P100 filler metal is suggested when welding 2507 because it will produce the appropriate duplex weld structure.

 

Preheating of 2507 is not necessary except to prevent condensation on cold metal. The interpass weld temperature should not exceed 300°F or the weld integrity can be adversely affected. The root should be shielded with argon or 90% N2/10% H2 purging gas for maximum corrosion resistance. The latter provides better corrosion resistance.

 

 

Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface 0

 

What we can offer?

-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.

-Machining and heat treatment are available.

-Also, we advise you in choosing the right materials.

 

Shape Available

  • Solid round bar
  • Flat bar
  • Square bar
  • Hexagon bar
  • Block
  • Plate
  • Sheet
  • Wire rod
  • Strip

 

Our Advantages

  • High mechanical property and quenching, enable the surface share equal hardness after deal with it
  • Good polishing and low roughness
  • Making the heat-treatment to harden condition before using it
  • Competitive price
  • Fast production lead-time
  • All the material are inspected with 3 times to meet the highly standards
  • Pure steel quality & stable quality to be guarantee
 

OUR AVAILABLE STAINLESS STEEL PRODUCTS ARE AS BELOW

Duplex ASTM 2507 Stainless Steel Bar Cold Drawn Techniques Peeled Surface 1

 

PAYMENT AND SHIPPING

 

1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples

 

COMPANY INFORMATION

 

Shanghai Unite Steel Trading Co., Ltd

We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.

What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!

 

FAQ

 

Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.

Q: What is the payment term?
A: T/T or L/C.

Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.

 

CONTACT US

 

We are happy to answer your questions and make you an offer for these and other materials. Contact us now for more information.

 

Your Contact Person

Ms Chilli Ho

Phone/Wechat/Whatsapp +86-181-0187-5575

Skype: chilli.ho@outlook.com

Email: chilli.ho@shunitesteel.com

Contact Details
SHANGHAI UNITE STEEL

Contact Person: Eric

Tel: 13661534998

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