Threaded Bars, Threaded Rods
Threaded Bars, Threaded Rods
Threaded Bars, Threaded Rods
Threaded Bars, Threaded Rods, ashtapad
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 Threaded Bars, Threaded RodsSA193 B7 Stud Bolts
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 Threaded Bars, Threaded RodsS355K2G3 EN 10025-2
 Threaded Bars, Threaded RodsS355J2+N EN 10025-2
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 Threaded Bars, Threaded RodsASTM A234/ASME SA234
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 Threaded Bars, Threaded RodsASTM A420/ASME SA420
 Threaded Bars, Threaded RodsASTM A860/ASME SA860
 Threaded Bars, Threaded RodsLong Radius Bends
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 Threaded Bars, Threaded RodsAPI 5L X42 PSL1/2 Pipes
 Threaded Bars, Threaded RodsAPI 5L X46 PSL1/2 Pipes
 Threaded Bars, Threaded RodsAPI 5L X52 PSL1/2 Pipes
 Threaded Bars, Threaded RodsAPI 5L X56 PSL1/2 Pipes
 Threaded Bars, Threaded RodsAPI 5L X60 PSL1/2 Pipes
 Threaded Bars, Threaded RodsAPI 5L X65 PSL1/2 Pipes
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Threaded Bars/Rods :

Manufacturers & Exporters

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 bright bar, steel round bar, ss bar, cold drawn bar Etc.Suppliers of Cold Drawn Bars, Stainless Steel Bright Bar Cold Drawn, Stainless Steel Bar, wire, rod, Monel Bar, Inconel Bar, Alloy 20 Bar, Hastelloy Bar, Nickel Bar, Titanium Bar, Cupro Nickel Bar, Copper Bar, Brass Bar, Aluminum Bar, Phosphorus Bronze Bar, Gun Metal Bar Etc.

 

Threaded Bars/Rods  
Threaded Bars/Rods

 
Threaded Bars, Threaded RodsTHREADED ROD / STUD / BOLT / NUT / WASHER
ASME SA 193 Grade B7, Grade B7M, Grade B16
ASTM A 193 Grade B7, Grade B7M, Grade B16
ASME SA 320 Grade L7, Grade L7M, Grade L43
ASTM A 320 Grade L7, Grade L7M, Grade L43
ASME SA 194 Grade 2H, Grade 2HM, Grade 3, Grade 4, Grade 7, Grade 7M, Grade 16
ASTM A 194 Grade 2H, 2HM, 3, 4, 7, 7M, 16
ASME SA 193 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2
ASTM A 193 Grade B8, B6M, B8 Class 2, B8M Class 2
ASME SA 320 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2
ASTM A 320 Grade B8, B8M, B8 Class 2, B8M Class 2
ASME SA 307 Grade A, B, C Carbon Steel Bolt and Stud 60000 PSI Tensile Strength
ASTM A 307 Grade A, B, C Carbon Steel Bolt and Stud 60,000 PSI Tensile Strength
ASME SA 194 Grade 8, Grade 8M, Grade 8F, Grade 8A, Grade 8C, Grade 6, Grade 310
ASTM A 194 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

 

 

ASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL PROPERTIES FOR STEEL FASTENERS

Identification
Grade Mark
Specification
Fastener
Description
Material
Nominal Size
Range (in.)
Mechanical Properties
Proof Load
(psi)
Yield Strength
Min (psi)
Tensile Strength
Min (psi)

No
Grade
Mark
SAE J429
Grade 1
Bolts,
Screws,
Studs
Low or Medium Carbon Steel
1/4 thru 1-1/2
33,000
36,000
60,000
ASTM A307
Grades A&B
Low Carbon Steel
1/4 thru 4
--
--
SAE J429
Grade 2
Low or Medium Carbon Steel
1/4 thru 3/4 Over 3/4 to 1-1/2
55,000
33,000
57,000
36,000
74,000
60,000

No
Grade
Mark
SAE J429
Grade 4
Studs
Medium Carbon Cold Drawn Steel
1/4 thru 1-1/2
--
100,000
115,000

B5
ASTM A193
Grade B5
AISI 501
1/4 Thru 4
--
80,000
100,000

B6
ASTM A193
Grade B6
AISI 410
85,000
110,000

B7
ASTM A193
Grade B7
AISI 4140, 4142, OR 4105
1/4 thru 2-1/2
Over 2-1/2 thru 4
Over 4 thru 7
--
--
--
105,000
95,000
75,000
125,000
115,000
100,000

B16
ASTM A193
Grade B16
CrMoVa Alloy Steel
105,000
95,000
85,000
125,000
115,000
100,000

B8
ASTM A193
Grade B8
AISI 304
1/4 and larger
--
30,000
75,000

B8C
ASTM A193
Grade B8C
AISI 347

B8M
ASTM A193
Grade B8M
AISI 316

B8T
ASTM A193
Grade B8T
Bolts,
Screws,
Studs for High-Temperature Service
AISI 321
1/4 and larger
--
30,000
75,000

B8
ASTM A193
Grade B8
AISI 304
Strain Hardened
1/4 thr 3/4
Over 3/4 thru 1
Over 1 thru 1-1/4
Over 1-1/4 thru 1-1/2
--
--
--
--
100,000
80,000
65,000
50,000
125,000
115,000
105,000
100,000

B8C
ASTM A193
Grade B8C
AISI 347
Strain Hardened

B8M
ASTM A193
Grade B8M
AISI 316
Strain Hardened
95,000
80,000
65,000
50,000
110,000
100,000
95,000
90,000

B8T
ASTM A193
Grade B8T
AISI 321
Strain Hardened
100,000
80,000
65,000
50,000
125,000
115,000
105,000
100,000

L7
ASTM A320
Grade L7
Bolts,
Screws,
Studs for Low-Temperature Service
AISI 4140,
4142 or 4145
1/4 thru 2-1/2
--
105,000
125,000

L7A
ASTM A320
Grade L7A
AISI 4037

L7B
ASTM A320
Grade L7B
AISI 4137

L7C
ASTM A320
Grade LC7
AISI 8740

L43
ASTM A320
Grade L43
AISI 4340
1/4 thru 4
--
105,000
125,000

B8
ASTM A320
Grade B8
Bolts,
Screws,
Studs for Low-Temperature Service
AISI 304
1/4 and larger
--
30,000
75,000

B8C
ASTM A320
Grade B8C
AISI 347

B8T
ASTM A320
Grade B8T
AISI 321

B8F
ASTM A320
Grade B8F
AISI 303
or 303Se

B8M
ASTM A320
Grade B8M
AISI 316

B8
ASTM A320
Grade B8
AISI 304
1/4 thru 3/4
Over 3/4 thru 1
Over 1 thru 1-1/4
Over 1-1/4 thru 1-1/2
--
--
--
--
100,000
80,000
65,00
50,00
100,000
80,000
65,00
50,00

B8C
ASTM A320
Grade B8C
AISI 347

B8F
ASTM A320
Grade B8F
AISI 303
or 303Se

B8M
ASTM A320
Grade B8M
AISI 316

B8T
ASTM A320
Grade B8T
AISI 321
SAE J429
Grade 5
Bolts,
Screws,
Studs
Medium Carbon Steel, Quenched and Tempered
1/4 thru 1
Over 1 to 1-1/2
85,000
74,000
92,000
81,000
120,000
105,000
ASTM A449
1/4 thru 1
Over 1 to 1-1/2
Over 1-1/2 thru 3
85,000
74,000
55,000
92,000
81,000
58,000
120,000
105,000
90,000
SAE J429
Grade 5.1
Sems
Low or Medium Carbon Steel, Quenched and Tempered
No. 6
thru 3/8
85,000
--
120,000
SAE J429
Grade 5.2
Bolts,
Screws,
Studs
Low Carbon Martensitic Steel, Quenched and Tempered
1/4 thru 1
85,000
92,000
120,000

A325
ASTM A325
Type 1
High Strength
Structural Bolts
Medium Carbon Steel, Quenched and Tempered
1/2 thru 1
1-1/8 thru 1-1/2
85,000
74,000
92,000
81,000
120,000
105,000

A325
ASTM A325
Type 2
Low Carbon Martensitic Steel, Quenched and Tempered
1/2 thru 1
85,000
92,000
120,000

A325
ASTM A325
Type 3
Atmospheric Corrosion Resisting Steel, Quenched and Tempered
1/2 thru 1
1-1/8 thru 1-1/2
85,000
74,000
92,000
81,000
120,000
105,000

BB
ASTM A354
Grade BB
Bolts,
Studs
Alloy Steel, Quenched and Tempered
1/4 thru 2-1/2
2-3/4 thru 4
80,000
75,000
83,000
78,000
105,000
100,000

BC
ASTM A354
Grade BC
105,000
95,000
109,000
99,000
125,000
115,000
SAE J429
Grade 7
Bolts,
Screws,
Medium Carbon Alloy Steel, Quenched and Tempered 4
1/4 thru 1-1/2
105,000
115,000
133,000
SAE J429
Grade 8
Bolts,
Screws,
Studs
Medium Carbon Alloy Steel, Quenched and Tempered
1/4 thru 1-1/2
120,000
130,000
150,000
ASTM A354
Grade BD
Alloy Steel, Quenched and Tempered 4

No Grade
Mark
SAE J429
Grade 8.1
Studs
Medium Carbon Alloy or SAE 1041 Modified Elevated Temperature Drawn Steel
1/4 thru 1-1/2
120,000
130,000
150,000

A490
ASTM A490
High Strength Structural Bolts
Alloy Steel, Quenched and Tempered
1/2 thru 1-1/2
120,000
130,000
150,000 min
170,000 max

No Grade
Mark
ISO R898
Class 4.6
Bolts,
Screws,
Studs
Medium Carbon Steel, Quenched and Tempered
All Sizes
thru 1-1/2
33,000
36,000
60,000

No Grade
Mark
ISO R898
Class 5.8
55,000
57,000
74,000
8.8

or

88
ISO R898
Class 8.8
Alloy Steel, Quenched and Tempered
85,000
92,000
120,000
10.9

or

109
ISO R898
Class 10.9
120,000
130,000
150,000

 
 

FASTENER IDENTIFICATION MARKING

Grade
Identification
Marking
SpecificationMaterialNominal Size
In.
Proof
Load
Stress
ksi
Hardness
Rockwell
See
Note
MinMax

No Mark
ASTM A563 - Grade 0Carbon Steel1/4 thru 1-1/269B55C323,4
ASTM A563 - Grade ACarbon Steel1/4 thru 1-1/290B68C323,4
ASTM A563 - Grade BCarbon Steel1/4 thru 1120B69C323,4
over 1 thru 1-1/2105
ASTM A563 - Grade CCarbon Steel
May be Quenched
and Tampered
1/4 thru 4144B78C385
ASTM A563 - Grade C3Atmospheric
Corrosion
Resistant Steel
May be Quenched
and Tampered
1/4 thru 4144B78C385,9
ASTM A563 - Grade DCarbon Steel
May be Quenched
and Tampered
1/4 thru 4150B84C386
ASTM A563 - Grade DHCarbon Steel
Quenched
and Tampered
1/4 thru 4175C24C386
ASTM A563 - Grade DH3Atmospheric
Corrosion
Resistant Steel,
Quenched
and Tampered
1/4 thru 4175C24C385,9
ASTM A194 - Grade 1Carbon Steel1/4 thru 4130B70--7
ASTM A194 - Grade 2Medium Carbon
Steel
1/4 thru 41501593527,8
ASTM A194 - Grade 2HMedium Carbon
Steel, Quenched
and Tempered
1/4 thru 4175C24C387
ASTM A194 - Grade 2HMMedium Carbon
Steel, Quenched
and Tempered
1/4 thru 41501592377,8
ASTM A194 - Grade 4Medium Carbon
Alloy Steel,
Quenched
and Tempered
1/4 thru 4175C24C387
ASTM A194 - Grade 7Medium Carbon
Alloy Steel,
Quenched
and Tempered
1/4 thru 4175C24C387
ASTM A194 - Grade 7MMedium Carbon
Alloy Steel,
Quenched
and Tempered
1/4 thru 41501592377
See Note 1,210      

NOTES:

  1. In addition to the indicated grade marking, all grades, except A563 grades O, A and B, must be marked for manufacturer identification.
  2. The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts. When nuts are machined from bar stock the nut must be additionally marked with the letter 'B'.
  3. Nuts are not required to be marked unless specified by the purchaser. When marked, the identification marking shall be the grade letter O, A or B.
  4. Properties shown are those of nonplated or noncoated coarse thread hex nuts.
  5. Properties shown are those of coarse thread heavy hex nuts.
  6. Properties shown are those of coarse thread heavy hex nuts.
  7. Properties shown are those of coarse 8-pitch thread heavy hex nuts.
  8. Hardnesses are Brinell Hardness Numbers.
  9. The nut manufacturer, at his option, may add other markings to indicate the use of atmospheric corrosion resistant steel.
  10. Specifications --
    ASTM A563 -- Carbon and Alloy Steel Nuts.
    ASTM A194/A194M -- Carbon and Alloy Steel Nuts for Bolts for High Pressure and High Temperature Service


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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Threaded Bars, Threaded Rods

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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.