AISI 431 ESR Stainless Steel Round Bars
AISI 431 ESR Stainless Steel Round Bars

AISI 431 Stainless Steel Bar

Name: AISI 431 Stainless Steel Bar
Brand: Huitai
SKU: 204364766

Grade AISI 431, DIN 1.4057 for glass mold manufacturing, products delivered in prehardened or soft annealed state. Surface finish: rough peeled. 431 mod. a special grade, it's a improved type from 1.4057. ESR 431 premium supplies longer mold life with its extra fine structure. Product packaging...

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Product Introduction

Introducing AISI 431 ESR Stainless Steel Round Bars

As a professional manufacturer located in China, we provide high-quality steel products to customers across the globe. Our AISI 431 ESR stainless steel round bars are one of our main products, and they have been well-received by our customers for their excellent quality, durability, and performance. In this article, we will introduce our AISI 431 ESR stainless steel round bars in detail, including their features, applications, advantages, and certifications.

What is AISI 431 ESR Stainless Steel?

AISI 431 ESR stainless steel is a grade of martensitic stainless steel, which is a type of stainless steel that has a high carbon content and is capable of being heat treated to obtain high mechanical properties. The ESR stands for Electro Slag Remelted, which means that this steel has been refined using a special process that removes any impurities and ensures a more uniform composition. AISI 431 ESR stainless steel has a high hardness, excellent corrosion resistance, and good ductility, making it suitable for a wide range of industrial applications.

Features and Applications of AISI 431 ESR Stainless Steel Round Bars

Our AISI 431 ESR stainless steel round bars are manufactured using advanced technology and equipment, and we guarantee the highest quality standards. These round bars have many features that make them ideal for use in various industries. Here are some of the key features of our AISI 431 ESR stainless steel round bars:

1. High hardness: AISI 431 ESR stainless steel round bars have a high hardness range of 50-55 HRC, which makes them ideal for applications that require excellent wear resistance and durability.

2. Good corrosion resistance: AISI 431 ESR stainless steel round bars have good corrosion resistance, especially in acidic environments, and are resistant to chloride stress corrosion cracking.

3. Good machinability: Our AISI 431 ESR stainless steel round bars are easy to machine, with good chip-forming properties and low cutting forces.

4. Uniform composition: Our AISI 431 ESR stainless steel round bars are manufactured using the Electro Slag Remelted process, which ensures a more uniform composition and eliminates any impurities.

Our AISI 431 ESR stainless steel round bars are widely used in various industries, including:

1. Aerospace: Our round bars are used in aerospace applications for their high strength and corrosion resistance.

2. Medical: Our round bars are used in medical applications for their high biocompatibility and corrosion resistance.

3. Automotive: Our round bars are used in automotive applications for their high wear resistance and durability.

4. Petrochemical: Our round bars are used in petrochemical applications for their resistance to high temperatures and corrosive environments.

Advantages of Choosing Our AISI 431 ESR Stainless Steel Round Bars

There are many advantages to choosing our AISI 431 ESR stainless steel round bars for your industrial applications. Here are some of the main advantages:

1. High quality: We guarantee the highest quality standards for our AISI 431 ESR stainless steel round bars, using advanced technology and equipment to ensure the best possible product.

2. Competitive price: We offer competitive prices for our AISI 431 ESR stainless steel round bars, making them a cost-effective choice for your industrial needs.

3. Customized solutions: We can provide customized solutions for our AISI 431 ESR stainless steel round bars, meeting your specific requirements and ensuring maximum efficiency.

4. Fast delivery: We offer fast delivery times for our AISI 431 ESR stainless steel round bars, ensuring that you receive your products quickly and efficiently.

Certifications

We take pride in our quality standards and are certified by various international organizations, including:

1. ISO 9001:2015 Quality Management System

2. ABS (American Bureau of Shipping)

3. TUV Rheinland Certification

4. Bureau Veritas Certification

5. Lloyd's Register Certification

In Conclusion

Our AISI 431 ESR stainless steel round bars are a reliable and high-quality choice for your industrial needs. We offer customized solutions, competitive prices, and fast delivery times, ensuring maximum efficiency and satisfaction for our customers. Contact us today to learn more about our products and services, and discover the benefits of choosing our AISI 431 ESR stainless steel round bars.

Grade AISI 431, DIN 1.4057 for glass mold manufacturing, products delivered in prehardened or soft annealed state.

Surface finish: rough peeled.

431 mod. a special grade, it's a improved type from 1.4057.

ESR 431 premium supplies longer mold life with its extra fine structure.

Grade	C	Si	Mn	P	S	Cr	Ni	Mo	V
FG431	0.17 ~ 0.22	0.4 ~ 0.5	0.6 ~ 0.7	0.025 max.	0.015 max.	15.5 ~ 16.0	1.7 ~ 1.9	0.2 ~ 0.25	0.06 ~ 0.1
DG431	0.20 ~ 0.25	0.25 ~ 0.35	0.8 ~ 0.9	0.025 max.	0.015 max.	15.5 ~ 16.0	1.8 ~ 1.9	0.3 ~ 0.35	0.05 ~ 0.1

431 is a high chromium-low nickel high hardenability Martensitic stainless steel with high strength and good corrosion resistance, as generally supplied hardened and tempered in the tensile range 850 - 1000 Mpa (condition T) Brinell range 248 - 302.Characterised by very good corrosion resistance in general atmospheric corrosive environments, good resistance to mild marine and industrial atmospheres, resistant to many organic materials, nitric acid and petroleum products coupled with high tensile and high yield strength plus excellent toughness in the hardened and tempered condition. 431 due to its excellent hardenability is capable of being through hardened up to Rc44, depending upon carbon content and section size. Small sections can be air cooled and larger sections oil quenched for maximum through hardness.Pre hardened and tempered 431 will also respond readily to nitriding achieving a typical surface hardness of over Rc65. The nitriding process however reduces the corrosion resistance and is therefore not generally recommended except for critical applications where the benefit outweighs all other considerations.

Used extensively for parts requiring a combination of high tensile strength, good toughness and good corrosion resistant properties.

Typical applications are: Aircraft Parts and Components, Bolts and Nuts, Fasteners, Pump Shafts, Propellor Shafts, Studs, Valve Parts etc.

Material magnetic in all conditions.

Colour Code	Stocked Sizes
Purple (Bar end)	STOCKED SIZES	6.35 to 260 mm diameter.
	Bar Finish
	Peeled, Cold Drawn Turned and Polished, and Centreless Ground.

Related Specifications
Australia	AS 2837-1986 431
Germany	W.Nr 1.4057 X20CrNi17 2
Great Britain	BS970 Part3 1991 431S29 BS970 - 1955 EN57
Japan	JIS G4303 SuS 431
USA	ASTM A276-98b 431 SAE 51431 AISI 431 UNS S43100

Chemical Composition
	Min. %	Max %
Carbon	0.12	0.20
Silicon	0	1.00
Manganese	0	1.00
Nickel	1.25	3.00
Chromium	15.00	18.00
Phosphorous	0	0.04
Sulphur	0	0.03
Carbon range can vary considerably Nickel addition optional.
Mechanical Property Requirements For Material in the Annealed and Heat Treated - Condition T To AS2837 - 1986 431 and BS970 Part3 1991 431S29
Condition		Annealed	*T
Tensile Strength Mpa	Min		850
	Max		1000
0.2% Yield Strength Mpa	Min		635
Elongation on 5.65√S0 %	Min		11
Izod Impact Valua J mm	Min		63 34 63 20
Hardness HB	Min		248
	Max	277	302
*Material stocked generally in condition T. NB. Check the mill certificate if critical for end use.
*Typical Mechanical Properties At Room Temperature - Hardened and Tempered to Condition T**
Tensile Strength Mpa		940
0.2% Yield Strength Mpa		750
Elongation in 50mm %		19
Impact Izod J		65
Hardness	HB	280
	Rc	30
*Typical Hardening Temperatures			980^oC - 1020^oC
*Typical Tempering Temperatures			640^oC - 660^oC
			590^oC - 610^oC
Typical Mechanical Properties At Room Temperature - Hardened By Oil Quench at 980^oC and Tempered as Indicated
Tempering Temperature ^oC			250	370	480	590	650
Tensile Strengt Mpa			1370	1390	1410	980	920
0.2% Yield Strength Mpa			1030	1130	1200	790	690
Elongation in 50mm %			16	16	16	19	20
Impact Charpy J			54	*34	*16	65	70
Hardness		HB	410	420	425	295	270
		Rc	44	45	46	32	29
High tensile strength and high yield strength with slightly lower impact properties when tempered below 370^oC. Section Size 30mm *Note drop in impact properties.Tempering within the range 370oC - 565oC should be avoided.
Elevated Temperature Properties
431 displays good resistance to scaling in continuous service up to 700^oC. Its use however at these higher working temperatures results in a substantial drop in tensile strength and hardness, with subsequent increase in ductility.
Typical Mechanical Properties at Elevated Temperatures, Hardened at 1010^oC and Tempered at 30^oC Above Working Temperature
Tempering Temperature ^oC			510	570	620
Working Temperature ^oC			480	540	590
Tensile Strengt Mpa			1350	720	435
Elongation in 50mm %			15	20	26
Room Temperature Hardness after Test		HB	440	330	280
		Rc	47	37	30
NB. Creep and stress rupture strength is also substantially reduced at these higher working temperatures.
Low Temperature Properties
431 is not recommended for use at sub-zero temperatures due to a substantial drop in impact properties consistent with most steels other than the austenitic steel types.
Cold Bending
In the hardened and tempered as supplied condition will be extremely difficult due to the high yield strength and is not generally recommended.
Hot Bending
In the hardened and tempered as supplied condition it is not recommended due to its affect on the mechanical properties within the heat affected zone.

Shape	Size(mm)
Wire	0.05-7.50
Rod	8-500
Ribbon	(0.05-0.35)*(0.5-6.0)
Strip	(0.5-2.5)*(5-180)

Product packaging

202003111557389450606

Our services

* OEM manufacturer * We will deliver the goods to the warehouse of the customer's agent in any city in China. * Terms of delivery: EXW, FCA, FOB, CIF, CPT, DAP * Mode of transport: Sea, Auto, Railway, Air and Express * Payment terms: Bank Transfer, Western Union, PayPal, Alipay* Quality Certificate: In order to improve the quality of products and services, with each order we provide a quality certificate for goods, which includes measured data - chemical composition, electrical resistivity, tensile strength, elongation, melting number, etc.