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ASTM Fasteners

WeAesteiron Steels Pvt Ltdare one of the leading manufacturers, suppliers and exporters ofASTM Fasteners

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ASTM A193 Gr 304, is the most commonly used stainless steel. It has better corrosion resistance than SS 302 & it is mostly magnetic in nature. However when cold worked it accquires a slightly magnetic quality.

Chemical Composition 
C0.08
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20.0
Mo-
Ni8.00-10.5

Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
85(ksi), 586(Mpa)42(290)55%
 
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ASTM A193 Gr 304N Bolts, has better corrosion resistance than grade 302, and is mostly non magnetic in nature. However when cold worked it acquires a slightly magnetic quality.

Chemical Composition
C0.08
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20.0
Mo-
Ni8.00-10.5
Others-

Mechanical Properties
Yield StrengthTensile Strength Elongation
240(Mpa, min)550(Mpa, min)30%

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ASTM A193 Gr 304LN, is a nitrogen strengthened version of 304 Stainless Steel. It is widely used for heat exchangers, chemical industry, food industry, petroleum industry, fabrication industry & nuclear industry.

Chemical Composition
C0.030
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20.0
Mo-
Ni8.00-12.0
OthersN 0.10-0.16

Mechanical Properties
Tensile StrengthProof Stress 0.2%(Mpa)Elongation
515(Mpa)20540%
 
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ASTM A193 Gr 305, is an austenitic chromium nickel stainless steel that can be deep drawn more easily due to an increased nickel content that decreases work hardening.

Chemical Composition
C0.08
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20
Mo-
Ni8.00-10.5
OthersN 0.10-0.16

Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
85(ksi), 586(Mpa)35(ksi), 241(Mpa)55%

 
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ASTM A193 Gr 316, is a molybdenum bearing steel. It gives better corrosion resistance properties than Stainless Steel 304, particularly higher resistant to pitting & crevice corrosion in chloride environments.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium16.0-18.0
Molybdenum2.0-3.0
Nickel10.0-14.0

Mechanical Properties
Tensile Strength Yield Strength Elongation
75 ksi(min)30 ksi(min)40%
 
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ASTM A193 Gr 316LN, is an austenitic steel that is low carbon, nitrogen enhanced version of 316 Stainless Steel. It is widely used for applications such as neurological applications, surgical instruments, trauma nails & orthopedic implants.

Chemical Composition
Carbon0.030max
Manganese2.00max
Phosphorus0.045max
Sulfur0.030max
Chromium16.0-18.0
Nickel10.0-14.0
Molybdenum2.0-3.0
Silicon1.00max
Nitrogen0.10-0.30
IronBal

Mechanical Properties
Tensile StrengthYield StrengthElongation(50mm)
515Mpa, 74694psi74694psi, 29732psi60%
 
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ASTM A193 Gr 316LN, is a lowcarbon, nitrogen enhanced version of 316 molybdenum bearing austenitic stainless steel. It offers higher creep, stress rupture & tensile strength at elevated temperature.

Chemical Composition
Carbon0.030max
Manganese2.00max
Phosphorus0.045max
Sulfur0.030max
Chromium16.0-18.0
Nickel10.0-14.0
Molybdenum2.0-3.0
Silicon1.00max
Nitrogen0.10-0.30
IronBal

Mechanical Properties
Tensile StrengthYield StrengthElongation(50mm)
515Mpa, 74694psi74694psi, 29732psi60%

 
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ASTM A193 Gr 321 Bolts, is a heat resistant, titanium stabilized austenitic alloy that is commonly used for service in 1000°-1600° F temperature range. It is primarily used in applications that involve continuous & intermittent service temperature within the carbide precipitation range 800°-1500°F.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium18.0-20.0
Nickel9.00-12.05
OthersTi 5xC min
Mechanical Properties
Tensile Strength (Mpa) minYield Strength 0.2% Proof (Mpa) minElongation
85(ksi), 585(Mpa)35(ksi), 240(Mpa)45%

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ASTM A193 Gr 347, is slightly improved corrosion resistance over SS 321. It has exceptional properties such as durability, weldability, high creep & stress rupture, high temperature & toughness.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Nickel9.00-13.00
Chromium17.0-19.0
OthersNb+Ta 10xCmin
Mechanical Properties
Yield Strength 0.2% OffsetUltimate Tensile StrengthElongation
30,000psi, 205Mpa75,000psi, 515Mpa40%

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ASTM A193 Gr 410, is the martensitic stainless steel which attain high mechanical properties after heat treatment. It is used for steam & gas turbine blades, kitchen utensils, bushing, valve components etc.

Chemical Composition
Carbon0.15
Silicon1.00
Manganese1.00
Phosphorus0.040
Sulfur0.030
Chromium11.5-13.5
Nickel-
Others-
Mechanical Properties
Proof Stress 0.2% Tensile Strength Elonagtion
205(Mpa)450 (Mpa)20%

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ASTM A194 Gr 303, is a non magnetic, austenitic stainless steel that is not hardenable by heat treatment. It is specially designed to exhibit improved machine ability while maintaining good mechanical & corrosion resistance properties.

Chemical Composition
Carbon0.15
Silicon1.00
Managnese2.00
Phosphorus0.20
Sulfur0.15
C17.0-19.0
Mo0.60
Ni8.00-10.00
OthersZr 0.60
Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
90ksi, 620Mpa45ksi, 310Mpa30%

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ASTM A194 Gr 304, has characteristics such as forming welding properties, corrosion resistance, deep drawing quality, excellent toughness etc. 

Chemical Composition
Carbon0.08
Silicon0.75
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium18.0-20.0
Molybdenum-
Nickel8.00-10.5
Others-
Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
85(ksi), 586(Mpa)42(290)55%

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ASTM A194 Gr 304LN, is a nitrogen strenthened version of SS 304. It is widely used used for applications such as heat exchangers, chemical industry, food industry & nuclear industry.

Chemical Composition
Carbon0.030
Silicon0.75
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium18.0-20.0
Molybdenum-
Nickel8.00-1.20
OthersN 0.10-0.16
Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
515(Mpa)20540%

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ASTM A194 Gr 304N Nuts, provides better resistance than SS 302 & mostly non-magnetic in nature. However when cold worked it acquires a slightly magnetic quality.

Chemical Composition
C0.08
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20.0
Mo-
Ni8.00-10.5
Others-
Mechanical Properties
Yield StrengthTensile Strength Elongation
240(Mpa, min)550(Mpa, min)30%

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ASTM A194 Gr 305, is an austenitic chromium nickel stainless steel. It has low rate of work hardening & this makes it suitable for many deep drawing applications. 

Chemical Composition
C0.08
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20
Mo-
Ni8.00-10.5
OthersN 0.10-0.16

Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
85(ksi), 586(Mpa)35(ksi), 241(Mpa)55%
 
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ASTM A194 Gr 316LN, is an austenitic steel that is low carbon, nitrogen enhanced version of 316 steel. The nitrogen content in this steel provides solid solution hardening. It possesses good resistance & corrosion.

Chemical Composition
Carbon0.030max
Manganese2.00max
Phosphorus0.045max
Sulfur0.030max
Chromium16.0-18.0
Nickel10.0-14.0
Molybdenum2.0-3.0
Silicon1.00max
Nitrogen0.10-0.30
IronBal

Mechanical Properties
Tensile StrengthYield StrengthElongation(50mm)
515Mpa, 74694psi74694psi, 29732psi60%

 
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ASTM A194 Gr 321 Nuts, is a titanium stabilised version SS 304, used for applications within the sensitizing temperature range. It is used for high temperature service because of its good mechanical properties.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium17.0-19.0
Nickel9.00-12.05
OthersTi 5xC min

Mechanical Properties
Tensile Strength Yield Strength Elongation
85(ksi), 585(Mpa)35(ksi), 240(Mpa)45%
 
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ASTM A194 Gr 347 Nuts, is slightly improved corrosion resistance over 321 stainless steel. It is columbium tantalum stabilized austenitic chromium nickel stainless steel.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium17.0-19.0
Nickel9.00-13.00
OthersNb+Ta 10xCmin

Mechanical Properties
Yield Strength 0.2% OffsetUltimate Tensile StrengthElongation
30,000psi, 205Mpa75,000psi, 515Mpa40%
 
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ASTM A194 Gr 416, is a martensitic free machining grade of stainless steel that can be hardened by heat treatment to achieve elevated strength & hardness. Due to its low cost & ready machinability.

Chemical Composition
Carbon0.15max
Manganese1.25max
Silicon1.00max
Phosphorus0.060max
Sulfur0.15min
Chromium12.0-14.0
Molybdenum0.60max

Mechanical Properties
Tensile Strength, minYield Strength 0.2% Offset, minElongation(% in 50mm)Hardness Brinell (HB)
517 Mpa275 Mpa30%262 max
 
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ASTM A320 Gr 304, is non magnetic in nature & most versatile steel. It is the most widely used stainless steel & has lower carbon content to minimize carbide precipitation & is used for high temperature applications.

Chemical Composition
Carbon0.08
Silicon0.75
Managnese2.00
Phosphorus0.045
Sulfur0.030
Chromium18.0-20.0
Molybdenum-
Nickel8.00-10.5
Others-

Mechanical Properties 
Tensile StrengthYield Strength 0.2% OffsetElongation
85(ksi), 586(Mpa)42(290)55%

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ASTM A320 Gr 304LN, is an austenitic stainless steel. It is used for applications such as petroleum, chemical industry, heat exchangers, superheater of boiler etc.

Chemical Composition
C0.030
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20.0
Mo-
Ni8.00-12.0
OthersN 0.10-0.16

Mechanical Properties
Tensile StrengthProof Stress 0.2%(Mpa)Elongation
515(Mpa)20540%
 
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ASTM A320 Gr 305, is an austenitic chromium nickel stainless steel that can be spun & deep drawn more easily due to an increased nickel content that decreases work hardening.

Chemical Composition
C0.08
Si0.75
Mn2.00
P0.045
S0.030
Cr18.0-20
Mo-
Ni8.00-10.5
OthersN 0.10-0.16

Mechanical Properties
Tensile StrengthYield Strength 0.2% OffsetElongation
85(ksi), 586(Mpa)35(ksi), 241(Mpa)55%
 
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ASTM A320 Gr 316, is an austenitic chromium nickel stainless steel contains molybdenum. It is typicaly used for furnace parts, heat exchangers, jet engine parts, pharmaceuticals, paper pulp industry & textile processing equipment.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium16.0-18.0
Molybdenum2.0-3.0
Nickel10.0-14.0

Mechanical Properties
Tensile Strength Yield Strength Elongation
75 ksi(min)30 ksi(min)40%

 
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ASTM A320 Gr 316LN, is a low carbon, nitrogen enhanced version of 316 molybdenum bearing austenitic stainless steel. It is more resistant to general corrosion & crevice corrosion than the conventional chromium nickel austentic stainless steel. 

Chemical Composition
Carbon0.030max
Manganese2.00max
Phosphorus0.045max
Sulfur0.030max
Chromium16.0-18.0
Nickel10.0-14.0
Molybdenum2.0-3.0
Silicon1.00max
Nitrogen0.10-0.30
IronBal

Mechanical Properties
Tensile StrengthYield StrengthElongation(50mm)
515Mpa, 74694psi74694psi, 29732psi60%
 
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ASTM A320 Gr 321, is similar to 304 stainless steel. However it contains a titanium addition of at least five times the carbon content. This addition is made to reduce chromium carbide precipitation, which results for welding or exposure to high temperature.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium17.0-19.0
Nickel9.00-12.05
OthersTi 5xC min

Mechanical Properties
Tensile Strength Yield Strength Elongation
85(ksi), 585(Mpa)35(ksi), 240(Mpa)45%

 
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ASTM A320 Gr 347, provides higher creep & rupture properties compared to 304. It can be used in elevated temperature applications for boiler & pressure vessels.

Chemical Composition
Carbon0.08
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium17.0-19.0
Nickel9.00-13.00
OthersNb+Ta 10xCmin

Mechanical Properties
Yield Strength 0.2% OffsetUltimate Tensile StrengthElongation
30,000psi, 205Mpa75,000psi, 515Mpa40%

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ASTM A593 Gr 316L Bolts, hex cap screws and studs

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ASTM A593 Gr 416 Bolts, hex cap screws and studs

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ASTM A593 Gr 431 Bolts, hex cap screws and studs

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ASTM A594 Gr 316L, is the low carbon version of 316 & has very high immunity from sensitization. It is extensively used for oil & gas, chemical industries for its cost effective corrosion resistance & ease of fabrication.

Chemical Composition
Carbon0.03
Silicon1.00
Manganese2.00
Phosphorus0.045
Sulfur0.030
Chromium16.0-18.0
Molybdenum2.00-3.00
Nickel10.0-14.0

Mechanical Properties
Yield Strength 0.2% Offset Ultimate Tensile StrengthElongation 
25,000(psi), 170(Mpa)70,000(psi), 485(Mpa)40%

 
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ASTM A594 Gr 416 Nuts, offers highest machinability of any stainless steel in their sub critical annealed condition. It is used for major applications such as gear, bolts, nuts & studs. 
 
Chemical Composition
Carbon0.15max
Manganese1.25max
Silicon1.00max
Phosphorus0.060max
Sulfur0.15min
Chromium12.0-14.0
Molybdenum0.60max

Mechanical Properties
Tensile Strength, minYield Strength 0.2% Offset, minElongation(% in 50mm)Hardness Brinell (HB)
517 Mpa275 Mpa30%262 max
 
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ASTM A594 Gr 431, is a high chromium low nickel high hardenability martensitic stainless steel with high strength & good corrosion resistance. It is typicaly used for aircraft parts & components, fasteners, bolts & nuts, pump shafts etc.

Chemical Composition
Carbon0.20max
Manganese 1.00max
Silicon 1.00max
Phosphorus 0.040max
Sulfur0.030max
Chromium 15.0-17.0
Nickel1.25-2.50

Mechanical Properties
Tensile Strength(Mpa)862
Yield Strength(Mpa)655
Elongation(% in 50mm)20

 
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ASTM A738 Gr 316L Bolts, Hex cap screws & studs

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ASTM A837 Gr 410 Socket head cap screws

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ASTM A880 Gr 304 Socket Set Screws

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ASTM A880 Gr 305 Socket Set Screws

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ASTM A908 Gr 304, has very good draw ability. It exhibits excellent resistance to a wide range of atmospheric, chemical, textile, petroleum & food industry.

Chemical Composition
CSiMnPSCrMoNiOthers
0.080.752.000.0450.03018.0-20.0-8.00-10.5-

Mechanical Properties
Tensile Strength85(ksi), 586(Mpa)
Yield Strength 0.2% Offset42(290)
Elongation55%

 
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ASTM F2281 Gr  410 Bolts, Hex cap, Screws & Studs

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ASTM F2281 Gr 304L Bolts, Hex cap, Screws & Studs

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Aesteiron Steels Private Limited

Rahul Kshatriya (Export Sales Manager)
107, Kika Street, 4th Floor, Supariwala Building Umrao Bhavan, Gulalwadi
Mumbai - 400004
Maharashtra, India
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