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Stainless steel, carbon steel, alloy steel, nickel, other ferrous & non-Ferrous metals in shape of Pipes, Tubes, Pipe Fittings, Flanges, Fasteners from India



Ashtapad is India's one of the leading steel flanges manufacture specialize in din flanges steel flanges asme flanges stainless flanges and others products Stainless steel, Carbon steel, Alloy steel, Nickel, Other Ferrous & Non-Ferrous metals In Shape Of steel bolt, steel nut, ss fastener, steel stud nut Etc.
Fasteners 
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FastenersASME SA193 Grade B7, Grade B7M, Grade B16, ASTM A193 Grade B7/B7M/B16
ASME SA320 Grade L7, Grade L7M, Grade L43, ASTM A320 Grade L7, L7M, L43
ASME SA194 Grade 2H, Grade 2HM, Grade 3, Grade 4, Grade 7, Grade 7M, Grade 16
ASTM A194 Grade 2H, 2HM, 3, 4, 7, 7M, 16
ASME SA193 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2
ASTM A193 Grade B8, B6M, B8 Class 2, B8M Class 2
ASME SA320 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2
ASTM A320 Grade B8, B8M, B8 Class 2, B8M Class 2
ASME SA307 Grade A, B, C Carbon Steel Bolt and Stud 60000 PSI Tensile Strength
ASTM A307 Grade A, B, C Carbon Steel Bolt and Stud 60,000 PSI Tensile Strength
ASME SA194 Grade 8, Grade 8M, Grade 8F, Grade 8A, Grade 8C, Grade 6, Grade 310
ASTM A194 Grade 8, 8M, 8F, 8A, 8C, 6, 310
Stainless Steel Carbide Solution Treated & Strain Hardened Threaded Bar, Rod, Stud
Roll Threaded Bars, Roll Threaded Rods, Roll Threaded Studs
B-8 Class-1 Stainless Steel AISI 304 / 304L Carbide Solution Treated
B-8 Class-2 Stainless Steel AISI 304 / 304L Carbide Solution Treated, Strain Hardened
B-8M Class-1 Stainless Steel AISI 316 / 316L Carbide Solution Treated
B-8M Class-2 Stainless Steel AISI 316 / 316L Carbide Solution Treated, Strain Hardened
B-8C Stainless Steel AISI 347 / 347H Carbide Solution Treated, Strain Hardened
B-8T Stainless Steel AISI 321 / 321H Carbide Solution Treated, Strain Hardened
B-8P Stainless Steel AISI 305 Carbide Solution Treated, Strain Hardened
Threaded Rod / Threaded Bar DIN 975, Stud Bolt DIN 976
Hexagon Bolt DIN 601, DIN 931, DIN 933, Hexagon Nut DIN 555, DIN 934
Plain Washer DIN 125, Stud Metal End DIN 938, DIN 939, DIN 940
Property Class : 4.8, 5.6, 5.8, 8.8, 10.9, 12.9
Coating : Bright Zinc Plated, Hot Dip Galvanised, Phosphatided, Nickel Plated
Material : 22CrMo4, 24CrMo4, 25CrMo4, 26CrMo4, 34CrMo4, 42CrMo4, 34CrNiMo6, 41CrNiMo6
Material : AISI 4130, SAE 4130, AISI 4140, SAE 4140, AISI 4145, SAE 4145, AISI 4340, SAE 4340
Material : EN 8, EN 9, EN 19, EN 24 Condition : Normalised, Tempered, Quenched & Tempered

HEAT-TREATED ALLOY STUDS, BOLTS THREADED BARS & RODS

Chemical Composition

ElementsA354 Grades BC, BDA193 Grade B7
**See Note BelowChromium-Molybdenum
Range percentCheck variation
over percent
Range percentCheck variation
over or under percent
Carbon...----*0.38-0.480.02
Manganese...----0.750-1.000.04
Phosphorus, max...0.040.0050.040.005 over
Sulphur, max...0.040.0050.040.005 over
Silicon...----0.20-0.350.02
Chromium...----0.80-1.100.05
Molybdenum...----0.15-0.250.02

 

 

ElementsA193 Grade B16
Chromium-Molybdenum-Vanadium
Range percentCheck variation
over or under percent
Carbon...0.36-0.440.02
Manganese...0.45-0.700.03
Phosphorus, max...0.040.005 over
Sulphur, max...0.040.005 over
Silicon...0.20-0.350.02
Chromium...0.80-1.150.05
Molybdenum...0.50-0.650.03
Vanadium...0.25-0.350.03

 

ElementsA320 Grade L7A320 Grade L43
Chromium-Molybdenum
(AISI 4140, 4142, 4145)
Nickel-Chromium-Molybdenum
(AISI 4340)
Range percentCheck variation
over percent
Range percentCheck variation
over or under percent
Carbon...*0.38-0.480.020.38-0.1480.02
Manganese...0.75-1.000.040.60-0.850.03
Phosphorus, max...0.040.005 over0.040.005 over
Sulphur, max...0.040.005 over0.040.005 over
Silicon...0.20-0.350.020.20-0.350.02
Nickel...----1.65-2.000.05
Chromium...0.80-1.100.050.70-1.900.03
Molybdenum...0.15-0.250.020.20-0.300.02

*For bar sizes over 3-1/2 in. to 4 in., inclusive, the carbon content may be 0.50 pct. max.

** Any alloy steel capable of meeting the tensile requirements of Specification A354 may be used.

Tensile Requirements

GradeDiameter, in.Min
tempering
temp F
Tensile
strength
min psi
Yield
point
min psi
Elongation
in 2 in.
min pct
Reduction
of area
min pct
A354 Grade BC{2-1/2 and under
{Over 2-1/2 to 4 incl.
850125,000109,0001650
A354 Grade BD1-1/2 and under850115,00099,0001645
A193 Grade B7
Chromium-
Molybdenum
{2-1/2 and under
{Over 2-1/2 to 4 incl.
{Over 4 to 7 incl.
850150,000125,0001435
A193 Grade B16
Chromium-
Molybdenum-
Vanadium
{2-1/2 and under
{Over 2-1/2 to 4 incl.
{Over 4 to 7 incl.
1100
1100
1100
125,000
115,000
100,000
105,000
95,000
75,000
16
16
18
50
50
50
A320 Grade L7
Chromium-
Molybdenum
2-1/2 and under--125,000105,0001650
A320 Grade L43
Nickel-Chromium-
Molybdenum
4 and under--125,000105,0001650

Commonly used are the following grades of heat-treated alloy steel for high-pressure or extreme temperature service in diameters of 1/2 in. to 2 in., inclusive. Other grades and other diameters are available on special order.

ASTM A354, Grades BC and BD - heat-treated alloy steels for applications at normal atmospheric temperatures where high strength is required.

ASTM A193, Grade B7 - a heat-treated chromium-molybdenum steel widely used for medium high-temperature service.

ASTM A193, Grade B16 - a heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

ASTM A320, Grade L7 - This grade is intended for low-temperature service down to minus 150ºF and has a minimum Charpy impact value of 15 ft-lb at this temperature. Sizes 2-1/2 in. and under.

ASTM A320, Grade L43 - The same properties offered by Grade L7 in sizes up to 2-1/2 are obtainable up to 4 in. in Grade L43 

 


Mechanical Requirements for Stainless Steel Fasteners

Grade(1)General
Descpription
of Material
Bolts, Screws and StudsNuts
Full Size Bolts,
Screws, Studs
Machine Test Sprecimens of
Bolts, Screws, Studs
Hardness
Rockwell
Proof
Load
Stress
Hardness
Rockwell
Yield (2)
Strength
Tensile
Strength
Yield (2)
Strength
Tensile
Strength
Elong-
ation(3)
Min psiMin psiMin psiMin psi% Min.MinpsiMin
303AAustenitic
Stainless Steel-
Sol. Annealed
30,00075,00030,00075,00020B7575,000B75
304-AAustenitic
Stainless Steel-
Sol. Annealed
30,00075,00030,00075,00020B7575,000B75
304Austenitic
Stainless Steel-
Cold Worked
50,00090,00045,00085,00020B8590,000B85
304-SHAustenitic
Stainless Steel-
Strain Hardened
See
Note 6
See
Note 6
See
Note 6
See
Note 6
15C25See
Note 6
C20
305-AAustenitic
Stainless Steel-
Sol. Annealed
30,00075,00030,00075,00020B7075,000B70
305Austenitic
Stainless Steel-
Cold Worked
50,00090,00045,00085,00020B8590,000B85
305-SHAustenitic
Stainless Steel-
Strain Hardened
See
Note 6
See
Note 6
See
Note 6
See
Note 6
15C25See
Note 6
C20
316-AAustenitic
Stainless Steel-
Sol. Annealed
30,00075,00030,00075,00020B7075,000B70
316Austenitic
Stainless Steel-
Cold Worked
50,00090,00045,00085,00020B8590,000B85
316-SHAustenitic
Stainless Steel-
Strain Hardened
See
Note 6
See
Note 6
See
Note 6
See
Note 6
15C25See
Note 6
C20
XM7-AAustenitic
Stainless Steel-
Sol. Annealed
30,00075,00030,00075,00020B7075,000B70
XM7Austenitic
Stainless Steel-
Cold Worked
50,00090,00045,00085,00020B8590,000B85
384-AAustenitic
Stainless Steel-
Sol. Annealed
30,00075,00030,00075,00020B7075,000B70
384Austenitic
Stainless Steel-
Cold Worked
50,00090,00045,00085,00020B8590,000B85
410-HMartensitic
Stainless Steel-
Hardened and
Tempered
95,000125,00095,000125,00020C22125,000C22
410-HTMartensitic
Stainless Steel-
Hardened and
Tempered
135,000180,000135,000180,00012C36180,000C36
416-HMartensitic
Stainless Steel-
Hardened and
Tempered
95,000125,00095,000125,00020C22125,000C22
416-HTMartensitic
Stainless Steel-
Hardened and
Tempered
135,000180,000135,000180,00012C36180,000C36
430Ferritic
Stainless Steel
40,00070,00040,00070,00020B7570,000B75

 

Note 6. Austenitic stainless steel, strain hardened bolts, screws, studs, and nuts shall have the following strength per properties.

Product
Size
Bolts, Screws, StudsNuts
Tested Full SizeMachine Test Specimens,Proof
Load
Stress
Yield
Strength
Tensile
Strength
Yield
Strength
Tensile
Strength
in.min psimin psimin psimin psipsi
to 5/8 in.100,000125,00090,000115,000125,000
over 5/8 to 1 in.70,000105,00065,000100,000105,000
over 1 to 1-1/2 in.50,00090,00045,00085,00090,000

Certificate & Inspection : c/w Calibration Works Certificate EN10204 3.1/DIN 50049 3.1/ISO10474 3.1 Mill Test Report, NACE MR-01-03/NACE MR-01-75/ISO-15156, CE Marked, European Pressure Equipment Directive PED 97/23/EC, AD 2000-WO, ASME Boiler & Pressure Vessel Code Section-II Part-A Edition 2008, API 6A, with 3.2 certificate duly certified & approved by LRS-Lloyd's Register, GL-Germanischer Lloyd, BV-Bureau Veritas, DNV-Det Norske Veritas, ABS-American Bureau of Shipping, SGS, TUV, RINA, IRS, NORSOK APPROVED STANDARD M630, M650 Rev.3


 
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Fasteners

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ASTM A588 Grade-A CORTEN-B High Strength Round Bars
14NiCrMo13-4 DIN 1.6657 832M13 Round Bars
SAE 4130 Quenched & Tempered Hollow Tubes & Bars
SAE 4130 Q&T Seamless Mechanical Tube & Pipe
ST-52 / ST 52-3N DIN 17100 Normalized Round Bars
ASTM A537 / ASME SA537 CL.2 Q&T Pressure Vessel Plates
AISI 4130 Q&T 75K API 6A Forged Round Bars
IS 2062 E450 D/E450 E SAILMA 450 SAILMA 450HI Plates
EN30B DIN 1.6747 4S28 835M30 AFNOR 30NCD16 Round Bars
S355J2W / S355J2W+N EN 10025-5 DIN 1.8963 EN 10155 Plates
S355JOW / S355JOW+N EN 10025-5 DIN 1.8963 EN 10155 Plates
S355JOWP / S355JOWP+N EN 10025-5 DIN 1.8946 EN 10155 Plates
SA516 Grade 60/70 HIC Tested Plates NACE TM0284-2003 / NACE MR0175 / ISO 15156-2
API 5L X60 / X65 / X70 PSL2 Plates


Nickel - Monel® - Inconel® - Incoloy® - Hastelloy® - Alloy 20 - Duplex
Trademark Notice - Some names are trade names and/or trademarks of specific manufacturers. Ashtapad Overseas, Mumbai, India is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specifications.