 ASME 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 | Elements | A354 Grades BC, BD | A193 Grade B7 | | **See Note Below | Chromium-Molybdenum | | Range percent | Check variation
over percent | Range percent | Check variation
over or under percent | | Carbon... | -- | -- | *0.38-0.48 | 0.02 | | Manganese... | -- | -- | 0.750-1.00 | 0.04 | | Phosphorus, max... | 0.04 | 0.005 | 0.04 | 0.005 over | | Sulphur, max... | 0.04 | 0.005 | 0.04 | 0.005 over | | Silicon... | -- | -- | 0.20-0.35 | 0.02 | | Chromium... | -- | -- | 0.80-1.10 | 0.05 | | Molybdenum... | -- | -- | 0.15-0.25 | 0.02 | | Elements | A193 Grade B16
Chromium-Molybdenum-Vanadium | | Range percent | Check variation
over or under percent | | Carbon... | 0.36-0.44 | 0.02 | | Manganese... | 0.45-0.70 | 0.03 | | Phosphorus, max... | 0.04 | 0.005 over | | Sulphur, max... | 0.04 | 0.005 over | | Silicon... | 0.20-0.35 | 0.02 | | Chromium... | 0.80-1.15 | 0.05 | | Molybdenum... | 0.50-0.65 | 0.03 | | Vanadium... | 0.25-0.35 | 0.03 | | Elements | A320 Grade L7 | A320 Grade L43 | Chromium-Molybdenum
(AISI 4140, 4142, 4145) | Nickel-Chromium-Molybdenum
(AISI 4340) | | Range percent | Check variation
over percent | Range percent | Check variation
over or under percent | | Carbon... | *0.38-0.48 | 0.02 | 0.38-0.148 | 0.02 | | Manganese... | 0.75-1.00 | 0.04 | 0.60-0.85 | 0.03 | | Phosphorus, max... | 0.04 | 0.005 over | 0.04 | 0.005 over | | Sulphur, max... | 0.04 | 0.005 over | 0.04 | 0.005 over | | Silicon... | 0.20-0.35 | 0.02 | 0.20-0.35 | 0.02 | | Nickel... | -- | -- | 1.65-2.00 | 0.05 | | Chromium... | 0.80-1.10 | 0.05 | 0.70-1.90 | 0.03 | | Molybdenum... | 0.15-0.25 | 0.02 | 0.20-0.30 | 0.02 | *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 | Grade | Diameter, 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. | 850 | 125,000 | 109,000 | 16 | 50 | | A354 Grade BD | 1-1/2 and under | 850 | 115,000 | 99,000 | 16 | 45 | A193 Grade B7
Chromium-
Molybdenum | {2-1/2 and under
{Over 2-1/2 to 4 incl.
{Over 4 to 7 incl. | 850 | 150,000 | 125,000 | 14 | 35 | 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 | -- | 125,000 | 105,000 | 16 | 50 | A320 Grade L43
Nickel-Chromium-
Molybdenum | 4 and under | -- | 125,000 | 105,000 | 16 | 50 | 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 Studs | Nuts | 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 psi | Min psi | Min psi | Min psi | % Min. | Min | psi | Min | | 303A | Austenitic
Stainless Steel-
Sol. Annealed | 30,000 | 75,000 | 30,000 | 75,000 | 20 | B75 | 75,000 | B75 | | 304-A | Austenitic
Stainless Steel-
Sol. Annealed | 30,000 | 75,000 | 30,000 | 75,000 | 20 | B75 | 75,000 | B75 | | 304 | Austenitic
Stainless Steel-
Cold Worked | 50,000 | 90,000 | 45,000 | 85,000 | 20 | B85 | 90,000 | B85 | | 304-SH | Austenitic
Stainless Steel-
Strain Hardened | See
Note 6 | See
Note 6 | See
Note 6 | See
Note 6 | 15 | C25 | See
Note 6 | C20 | | 305-A | Austenitic
Stainless Steel-
Sol. Annealed | 30,000 | 75,000 | 30,000 | 75,000 | 20 | B70 | 75,000 | B70 | | 305 | Austenitic
Stainless Steel-
Cold Worked | 50,000 | 90,000 | 45,000 | 85,000 | 20 | B85 | 90,000 | B85 | | 305-SH | Austenitic
Stainless Steel-
Strain Hardened | See
Note 6 | See
Note 6 | See
Note 6 | See
Note 6 | 15 | C25 | See
Note 6 | C20 | | 316-A | Austenitic
Stainless Steel-
Sol. Annealed | 30,000 | 75,000 | 30,000 | 75,000 | 20 | B70 | 75,000 | B70 | | 316 | Austenitic
Stainless Steel-
Cold Worked | 50,000 | 90,000 | 45,000 | 85,000 | 20 | B85 | 90,000 | B85 | | 316-SH | Austenitic
Stainless Steel-
Strain Hardened | See
Note 6 | See
Note 6 | See
Note 6 | See
Note 6 | 15 | C25 | See
Note 6 | C20 | | XM7-A | Austenitic
Stainless Steel-
Sol. Annealed | 30,000 | 75,000 | 30,000 | 75,000 | 20 | B70 | 75,000 | B70 | | XM7 | Austenitic
Stainless Steel-
Cold Worked | 50,000 | 90,000 | 45,000 | 85,000 | 20 | B85 | 90,000 | B85 | | 384-A | Austenitic
Stainless Steel-
Sol. Annealed | 30,000 | 75,000 | 30,000 | 75,000 | 20 | B70 | 75,000 | B70 | | 384 | Austenitic
Stainless Steel-
Cold Worked | 50,000 | 90,000 | 45,000 | 85,000 | 20 | B85 | 90,000 | B85 | | 410-H | Martensitic
Stainless Steel-
Hardened and
Tempered | 95,000 | 125,000 | 95,000 | 125,000 | 20 | C22 | 125,000 | C22 | | 410-HT | Martensitic
Stainless Steel-
Hardened and
Tempered | 135,000 | 180,000 | 135,000 | 180,000 | 12 | C36 | 180,000 | C36 | | 416-H | Martensitic
Stainless Steel-
Hardened and
Tempered | 95,000 | 125,000 | 95,000 | 125,000 | 20 | C22 | 125,000 | C22 | | 416-HT | Martensitic
Stainless Steel-
Hardened and
Tempered | 135,000 | 180,000 | 135,000 | 180,000 | 12 | C36 | 180,000 | C36 | | 430 | Ferritic
Stainless Steel | 40,000 | 70,000 | 40,000 | 70,000 | 20 | B75 | 70,000 | B75 |
Note 6. Austenitic stainless steel, strain hardened bolts, screws, studs, and nuts shall have the following strength per properties. Product
Size | Bolts, Screws, Studs | Nuts | | Tested Full Size | Machine Test Specimens, | Proof
Load
Stress | Yield
Strength | Tensile
Strength | Yield
Strength | Tensile
Strength | | in. | min psi | min psi | min psi | min psi | psi | | to 5/8 in. | 100,000 | 125,000 | 90,000 | 115,000 | 125,000 | | over 5/8 to 1 in. | 70,000 | 105,000 | 65,000 | 100,000 | 105,000 | | over 1 to 1-1/2 in. | 50,000 | 90,000 | 45,000 | 85,000 | 90,000 |
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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