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Dacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m Grade

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Dacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m Grade

Brand Name : NEW-ERA

Model Number : M3-M120

Certification : ISO9001/TS16949

Place of Origin : CHINA

MOQ : 1000kg

Price : Negotiation

Payment Terms : L/C, T/T

Supply Ability : 2000tons per month

Delivery Time : 20-30days

Packaging Details : bundles packing,wooden box packing

Standard : ASTM A320 A193

Material : Stainless Steel,alloy steel,carbon steel,Brass,etc.

Size : can be customized,M3-M100,Cusomized,M3-M48

Finish : Plain,black,Zinc plated,dacromet

Name : Stainless steel threaded rods(studdings),stainless steel threaded rod,Bolts,M42 M45 Stainless Steel Fasteners Full Threaded Rod And Bolt

Surface treatment : Nickel,Dacromet,Nickel-plated,Chrome

Class : 35K 45K C45 40Cr Gr.8.8

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ASTM A193 B8 B8m Zinc Plated Galvanized threaded steel rod B7 M3-M120 Steel Threaded Rods

ASTM A193 B8 B8m/Zinc Plated Galvanized B7/M3-M120 DIN975 DIN976 Steel China
ASTM A193: B7, B7M, B16, B8 class 1, B8 class 2, B8M class 1, B8M class 2, B8T etc.
ASTM A320: L7, L7M, L43, B8 class 1, B8 class 2, B8M class 1, B8M class 2, B8T etc.
Sizes:1/4'' to 4''

1. Know A193 B7 & A193 B7M

1) ASTM A193 is alloy steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
Material according to ASTM A193 B7 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.

2) ASTM A193 Grade B7M bolts and studs are identical in chemistry to Grade B7 (quenched and tempered medium carbon alloy steel), but have lower strength requirements and require 100% hardness testing of all fasteners manufactured in the lot. Grade B7M bolts resist chloride, sulfide, and hydrogen stress corrosion cracking (SCC) and are frequently used in sour gas service.

2. A193 B7 & A193 B7M Raw material chemical composition

Element B7 / B7M (AISI 4140)
Carbon 0.38 - 0.48%
Manganese 0.75 - 1.00%
Phosphorus, max 0.04%
Sulfur, max 0.04%
Silicon 0.15 - 0.35%
Chromium 0.80 - 1.10%
Nickel
Molybdenum 0.15 - 0.25%


3.. A193 B7 & A193 B7M Property

Grade Sizes Tensile ksi, min Yield, ksi, min Elong, %, min RA % min HBW HRC
A193 B7 Up to 2-1/2 125 105 16 50 321 max 35 max
2-5/8 - 4 115 95 16 50
4-1/8 - 6 100 75 18 50
B7M Up to 4 100 80 18 50 235 max -
Over 4 - 7 100 75 18 50
Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B7 Up to 2-1/2 125 105 16 50
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50
B8 Class 1 All 75 30 30 50
B8M Class 1 All 75 30 30 50
B8 Class 2 Up to 3/4 125 100 12 35
2007/8/1 115 80 15 35
1-1/8 - 1-1/4 105 65 20 35
1-3/8 - 1-1/2 100 50 28 45
B8M Class 2 Up to 3/4 110 95 15 45
2007/8/1 100 80 20 45
1-1/8 - 1-1/4 95 65 25 45
1-3/8 - 1-1/2 90 50 30 45
B16 Up to 2-1/2 125 105 18 50
2-5/8 - 4 110 95 17 45
4-1/8 - 7 100 85 16 45

Dacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m GradeDacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m GradeDacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m GradeDacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m Grade

Dacromet / Nickel Threaded Steel Rod ASTM / A193 Standard B8 / B8m Grade


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