Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"ESR Round Shaft Stainless Steel Bar 14Cr17Ni2 DIN 1.2787 AISI 431 Dia 310MM For","imgUrl":"https:\/\/img.chinax.com\/nimg\/6a\/33\/0830418e3023507aa614d465d5f1-200x200-1\/esr_round_shaft_stainless_steel_bar_14cr17ni2_din_1_2787_aisi_431_dia_310mm_for.jpg","attrs":{"Brand Name":"MITTEL TISCO BAO STEEL","Model Number":"431 1Cr17Ni2","Certification":"SGS ISO MTC","Place of Origin":"China"}}
431 Stainless Steel Round Bar Chemical Composition
Min. %
Max %
Carbon
0.12
0.20
Silicon
0.00
1.00
Manganese
0.00
1.00
Nickel
1.25
3.00
Chromium
15.00
18.00
Phosphorous
0.00
0.04
Sulphur
0.00
0.03
What type of material is 431?
This heat treatable martensitic, nickel-bearing grade has the best corrosion resistance properties of all the martensitic grades. It has excellent tensile and torque strength, and good toughness, making it ideally suited to shafting and bolt applications. It can be hardened to approximately 40HRC. Because of its high yield strength, this grade is not readily cold worked and is therefore not recommended for use in operations such as cold heading, bending, deep drawing or spinning.
Martensitic stainless steels are optimised for high hardness, and other properties are to some degree compromised. Fabrication must be by methods that allow for poor weldability and usually also allow for a final harden and temper heat treatment. Corrosion resistance is lower than the common austenitic grades, and their useful operating temperature range is limited by their loss of ductility at sub-zero temperatures and loss of strength by over-tempering at elevated temperatures.
431 stainless steel Mechanical Properties.
Tempering Temperature (°C)
Tensile Strength (MPa)
Yield Strength 0.2% Proof (MPa)
Elongation (% in 50mm)
Hardness Brinell (HB)
Impact Charpy V (J)
Annealed *
862
655
20
285 max
–
204
1345
1055
20
388
50
316
1295
1035
19
375
53
427
1350
1080
19
388
#
538
1140
965
19
321
#
593
1015
770
20
293
64
650
960
695
20
277
84
SS431 is frequently stocked and supplied in “Condition T”, with specified tensile strength of 850 – 1000MPa.
* Annealed tensile properties are typical for Condition A of ASTM A276; annealed hardness is the specified maximum. SS431 is only rarely stocked in annealed Condition A.
# Due to associated low impact resistance this steel should not be tempered in the range 425-600°C
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.
431 stainless steel nearest possible Grades
Grade
Why it might be chosen instead of 431
SS410
Only a lower hardened strength is needed.
SS416
High machinability is required, and the lower hardened strength and lower corrosion resistance of 416 is acceptable.
SUS 440C
A higher hardened strength or hardness than can be obtained from 420 is needed.
stainless steel 431 Corrosion Resistance
Excellent resistance to a wide variety of corrosive media. Reasonable resistance to salt water in cold southern waters but less resistant than SUS316 in tropical waters. Overall the corrosion resistance of SUS431 is approximately the same as or slightly below that of SUS304.
Performance is best with a smooth surface finish, in the hardened and tempered condition.
431 stainless steel Heat Resistance
Resists scaling in intermittent service to 925°C and in continuous service to 870°C, but is generally not recommended for use in temperatures above the relevant tempering temperature, because of reduction in mechanical properties.
431 stainless steel Heat Treatment
Full anneal – not practical for this grade – it hardens even when cooled slowly.
Process Anneal – heat to 620-660°C and air cool.
Hardened by heating to 980-1065°C, holding for about 1/2 hour then quenching in air or oil. Pre-heating at 760-790°C may be useful for complex parts or those already hardened. Temper to suit mechanical requirements, at temperatures as indicated in the accompanying table.
The tempering range 425-600°C should be avoided due to reduced impact toughness, although the effect is less marked than in most other martensitic grades.
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta... Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta...
