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Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars

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Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars

China Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars supplier
Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars supplier Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars supplier

Large Image :  Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars

Product Details:

Place of Origin: China
Brand Name: Bao Steel
Certification: SGS ISO
Model Number: 431

Payment & Shipping Terms:

Minimum Order Quantity: 3 Tons
Price: 2250 USD/Ton
Packaging Details: Export Packing
Delivery Time: 7 days
Payment Terms: L/C, T/T
Supply Ability: 500 Tons
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Detailed Product Description
OD: 6-600mm Surface: Black And Bright
Length: 1-12m Type: Hot Rolled Cold Drawn
Condition: Hardened And Tempered Standard: ASTM JIS

150 mm and 170 mm Round Bars of Grade 1.2787 ESR Equvelant To AISI 431 Hardened And Tempered To 950-1050 C Degree Freq

Type 431 Stainless Steel

Hardenable Martensitic Stainless Steel Alloy

Type 431 is a hardenable martensitic stainless steel alloy which has a combination of high tensile and torsional strength - this makes it well suited to shaft manufacture.

The alloy is intended for use in applications requiring good strength and toughness combined with reasonable corrosion resistance. As the alloy offers considerable resistance to saltwater corrosion, it is used widely in marine equipment and systems. Type 431 is easily machined in the annealed state but welding is difficult due to cracking and it is recommended that the material is preheated to improve welding performance.

 

Key Features:

Type 431 stainless steel is a heat treatable martensitic stainless - the alloy offers high tension and torsional strength and is well suited in the manufacture of shafts. However, welding is poor and the material cannot be easily cold worked.
 

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.



 

Typical Applications:

  • Marine systems
  • Pump & propeller shafts
  • Outboard motor drive shafts
  • Valve stems
  • Aircraft components
  • Axles



We offer Type 431 Stainless Steel in round bar, plate, sheet and tube. We provide dedicated processing services throughout the Smiths Group - with more than 30 band saws and a fully automated magazine feed CNC rod blanking line, we can process your material to your exact requirements.

 

431 STAINLESS UNS S43100

431 stainless was formulated to provide better corrosion resistance and toughness in a quench- hardenable, stainless steel. It maintains good strength and corrosion resistance and hardness, in temperatures from -100 to 1200 degress f (-73/ 650c). It has the best corrosion resistance of the conventional martensitic stainless grades.

Applications: 431 stainless is widely used in highly stressed aircraft components, valves, also pump and pump shafts.

Chemistry Analysis
Carbon 0.20% Manganese 1.00%
Phosphorus 0.040% Sulfur 0.030%
Silicon 1.0% Chromium 15.00 - 17.50%
Nickel 1.25% - 2.50% Iron Balance

Corrosion Resistance

The following table is for reference only, many factors can affect the corrosive resistance, a corrosion test for each application should be applied.

Phosphoric Acid Restricted Acetic Acid Restricted
Sodium Hydroxide Moderate Sea Water Restricted
Salt Spray Moderate Nitric Acid Good
Sulfuric Acid Restricted Humidity Good

Heat Treatment

Annealing: typical Heat uniformly 1200/1250f (650/677c) remove from furnace and cool in air. Brinell hardness expected approximately 270. This is the best condition for overall machining.

Hardening: Heat 1800/1950f (982/1066c) soak at heat, quench in oil. You may also harden in air.

Tempering: In the range of 700/1050f (371/565c), to achieve desired mechanical properties. Soak at hest for at least one hour, longer for larger pieces and cool in air.

Typical Room Temperature Tensile Properties

Hardened at 1800f (982c) and oil quenched, followed by tempering at indicated temperature and air cooled.
Temper Temperature Yield Strength Ultimate Tensile Strength % Elongation in 2" {50.8mm} Brinell Hardness % Reduction of Area Charpy V-notch
F C ksi Mpa ksi Mpa ft-lb J
annealed   95 655 125 655 20 280 55 50 68
500 280 149 1027 196 1365 16 415 55 40 76
700 371 163 1123 202 1393 16 429 55 25 34
900 482 174 1200 204 1407 16 415 51 12 16
1100 593 115 793 140 965 19 302 57 48 65
1300 649 99 683 129 889 20 269 60 51 69
Hardened at 1900f (1038c) and oil quenched, followed by tempering at indicated temperature and air cooled.
Temper Temperature Yield Strength Ultimate Tensile Strength % Elongation in 2" {50.8mm} Brinell Hardness % Reduction of Area Charpy V-notch
F C ksi Mpa ksi Mpa ft-lb J
annealed   95 655 125 655 20 280 55 50 68
500 280 148 1020 193 1331 17 388 40 52 71
700 371 145 1000 188 1282 21 388 53 60 61
900 482 156 1076 200 1379 18 415 62 42 57
1100 593 113 779 150 1034 18 321 55 32 43
1300 649 98 676 140 965 18 263 53 45 61

Machinability:

431 in the annealed condition can gall and build up on the cutting tool which can result in poor finishes.

Specifications:

AMS 5628 ASTM A276 ASTM A314 ASTM A479 QQS 763 PWA LCS EN10204 DIN3.1B

Shapes Manufactured

Flat Bars, Square Bars, Round Bars, Rings, Hollows, Discs, Blocks and special Shapes. Send us a drawing to see how we can save you material and Machining time!

The information in this data sheet is for information only and should not be used for engineering.

Grade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round BarsGrade 1.2787 ESR Equvelant To AISI 431 431 Stainless Steel Alloy Round Bars

Contact Details
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Contact Person: Gao Ben

Tel: +8618068357371

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