PREN＞40 Duplex Stainless Steel Fasteners 2507 1.4410 Hex Bolt Nut Washer

PREN>40 UNS S32750 2507 DIN1.4410 SAF2507 bolt nut washer as per DIN ISO UNI standard

1. S32750 bolt nut stud washer specification

2.  S32750 2507 1. 4410 bolt nut stud washer Chemical Composition

Duplex 2507 Overview
Duplex 2507 is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

Usage of Duplex 2507 should be limited to applications below 600° F (316° C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507.

Duplex 2507 possesses excellent mechanical properties. Often a light gauge of 2507 material can be used to achieve the same design strength of a thicker nickel alloy. The resulting savings in weight can dramatically reduce the overall cost of fabrication.
Corrosion Resistance

2507 Duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid. It is alsohighly resistant to inorganic acids, especially if they contain chlorides. Alloy 2507 is highly resistant to carbide-related intergranular corrosion. Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved. Alloy 2507 has excellent localized pitting resistance.

What are the characteristics of Duplex 2507?
• High resistance to chloride stress corrosion cracking
• High Strength
• Superior resistance to chloride pitting and crevice corrosion
• Good general corrosion resistance
• Suggested for applications up to 600
• Low rate of thermal expansion
• Combination of properties given by austenitic and ferritic structure
• Good weldability and workability

Chemical Composition, %

Mechanical Properties
Specified Tensile Properties, Plate ASTM A240

3. S32750 2507 1.4410 bolt nut washer stud Test Certificates

We provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,

• Raw Materials Certificate

• 100% Radiography Test Report

• Third Party Inspection Report, etc

ASME, ASTM and API S32750 bolt nut washer stud Value Added Services

Material Testing:

We ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area

• Hardness Test

• Chemical Analysis – Spectro Analysis

• Positive Material Identification – PMI Testing

• Flattening Test

• Micro and MacroTest

• Pitting Resistance Test

• Flaring Test

• Intergranular Corrosion (IGC) Test