Active Member
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[China]
Address: #888 xingrong road, jiading district, Shanghai
Contact name:Frank
Shanghai Powermax Fastener Co., Ltd. |
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ASTM A320 L43 fully threaded PTFE coated stud bolt for flanges
In a flanged connection the size, length, diameter and number of
bolt holes is dependent of flange type and pressure class of
flange.
Stud Bolt grades and sizes are defined by industry standards in
ASTM A193 and ASME B16.5 standards. Bolts are usually defined as a threaded fastener intended to be
mated with a nut, while a screw can engage either preformed or
self-made internal threads,A stud is an externally threaded
headless fastener. One end usually mates with a tapped component
and the other with a standard nut.
ASTM A320 Grades
L7 :13% Chromium Ferritic Steel
L7M :Chromium Molybdenum Alloy Steel, Quenched & Tempered
L43 :Chromium Molybdenum Alloy Steel, Quenched & Tempered
B8 :AISI 304 Stainless Steel, Carbide Solution Treated
B8 :Class 2 AISI 304 Stainless Steel, Carbide Solution Treated and
Strain Hardened
B8M :AISI 316 Stainless Steel, Carbide Solution Treated
B8M :Class 2 AISI 316 Stainless Steel, Carbide Solution Treated and
Strain Hardened
B8T :AISI 321 Stainless Steel, Carbide Solution Treated
B8T :Class 2 AISI 321 Stainless Steel, Carbide Solution Treated and
Strain Hardened
B8C :AISI 347 Stainless Steel, Carbide Solution Treated
Type :
Full threads, Partial Threads, and customized as per requirements.
SIZE :
Nom Dia: ¼ to 4″ [6-100 mm]
Tailor made if required.
Length: As Per Standard or Upto any Length
SPECIFICATION / STANDARD :ASTM / ASME / BS / DIN / BS EN ISO
MATERIAL :C.S., M.S., Alloy Steel, Ferritic & Austenitic Stainless Steel
THREADS :UNC, 8UN, UNF, Metric Coarse & Fine Series.
SURFACE FINISH :
Self Color, Hot Dip Galvanized, Electro Galvanized, Di-Chromated,
P.T.F.E. Coated or any other as per order requiremen
Packaging Details: a. bulk in cartons (<=25kg )+ 36CTN/wood solid Pallet
b. bulk in cartons 9"x9"x5" (<=18kg )+ 48CTN/wood solid Pallet
Supply Ability:1000 tons per month
MinimumOrder:200kgs for each specification
Trade Term:FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment :T/T, L/C , D/A , D/P , Western Union,etc
Market:South&north Amrica/Europe/ etc.
ASTM A320 Chemical Composition | ||||||
Element | Grade L7, L7M | Grade L43 | Grade B8 | Grade B8M | Grade B8T | Grade B8C |
Carbon | 0.38 - 0.48 | 0.38 - 0.43 | 0.08 max | 0.08 max | 0.08 max | 0.08 max |
Manganese, max | 0.75 - 1.00 | 0.75 - 1.00 | 2.00 max | 2 | 2 | 1 |
Phosphorus, max | 0.035 | 0.035 | 0.045 | 0.045 | 0.045 | 0.04 |
Sulfur, max | 0.04 | 0.04 | 0.03 | 0.03 | 0.03 | 0.03 |
Silicon | 0.15 - 0.35 | 0.15 - 0.35 | 1.00 max | 1 | 1 | 1.00 max |
Nickel | - | 0.40 - 0.70 | 8.0 - 11.0 | 10.0 - 14.0 | 9.0 - 12.0 | 8.00 - 11.00 |
Chromium | 0.80 - 1.10 | 0.40 - 0.60 | 18.0 - 20.0 | 16.0 - 18.0 | 17.0 - 19.0 | 18.0 - 20.0 |
Molybdenum | 0.15 - 0.25 | 0.20 - 0.30 | - | 2.0 - 3.0 | - | - |
Titanium | - | - | - | - | 5 x C, min | - |
ASTM A320 Recommended Nuts & Washers | ||
Bolt Grade | Nut Grade | Washer Grade |
L7 | ASTM A194 Grade 7 | ASTM F436 Type 1 |
L7M | ASTM A194 Grade 7M | ASTM F436 Type 1 |
L43 | ASTM A194 Grade 4 OR Grade 7 | ASTM F436 Type 1 |
B8 | ASTM A194 Grade 8 | AISI 304 |
B8M | ASTM A194 Grade 8M | AISI 316 |
B8T | ASTM A194 Grade 8T | AISI 321 |
B8C | ASTM A194 Grade 8C | AISI 347 |
