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Carbon Steel ASTM A193 Grade B7 Studs M52 X 600

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Product Specifications

Size	M52X600
Material	Carbon Steel
Availability	In Stock
Carbon (C)	0.37 – 0.49
Chromium (Cr)	0.75 – 1.20
Country of Origin	Made in India
Elongation (2")	≥ 16%
Grade	ASTM A193 GR.B7 Full Thread Studs
Hardness (Brinell)	223 – 262 HB
Hardness (Rockwell B)	Max 99 HRB
Manganese (Mn)	0.65 – 1.10
Molybdenum (Mo)	0.15 – 0.25
Phosphorus (P)	≤ 0.035
Quantity Per Pack	3
Reduction of Area	≥ 50%
Silicon (Si)	0.15 – 0.35
Sulfur (S)	≤ 0.040
Surface Finishing	Black
Surface Treatment	Hardened Tempered
Tensile Strength	≥ 125 ksi (860 MPa)
Yield Strength	≥ 105 ksi (720 MPa)

Aanuraj Fasteners Private Limited

GST No - 27AARCA3096L1Z0 | Member since 2026

G6-A, Unit No. 10, Sagar Industrial Estate, Dhumal Nagar Waliv, District Thane Vasai - 401208, Maharashtra, India

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Product Details

ASTM A193 Grade B7 – Material Data Sheet & Product Description ✅ Introduction ASTM A193 Grade B7 is a specification covering alloy steel and stainless steel bolting materials for high-temperature or high-pressure service and other special-purpose applications. B7 fasteners are widely used in industries like oil & gas, chemical processing, power plants, and pressure vessel fabrication. Aanuraj Fasteners Pvt Ltd is a reputed manufacturer and exporter of ASTM A193 B7 fasteners including bolts, studs, nuts, and threaded rods made with precision for extreme applications. 🧪 Chemical Composition (% by Weight) ElementComposition (%) Carbon (C) 0.37 – 0.49 Manganese (Mn) 0.65 – 1.10 Phosphorus (P) ≤ 0.035 Sulfur (S) ≤ 0.040 Silicon (Si) 0.15 – 0.35 Chromium (Cr) 0.75 – 1.20 Molybdenum (Mo) 0.15 – 0.25 🛠️ Mechanical Properties PropertyRequirement Tensile Strength ≥ 125 ksi (860 MPa) Yield Strength ≥ 105 ksi (720 MPa) Elongation (2") ≥ 16% Reduction of Area ≥ 50% Hardness (Brinell) 223 – 262 HB Hardness (Rockwell B) Max 99 HRB 🧱 Typical Product Forms Stud bolts (Full/Double End) Hex bolts Threaded rods Nuts (ASTM A194 Grade 2H as companion) Custom CNC turned fasteners 🌡️ Heat Treatment B7 material is quenched and tempered to meet the required mechanical properties and hardness range. 🔍 Identification Marking Each B7 fastener is typically marked as follows: B7 for material grade Manufacturer's symbol (e.g., AANURAJ or logo) Heat number or batch code for traceability ⚙️ Applications High-pressure flanged joints Boilers and heat exchangers Refinery piping systems Power generation systems Pressure vessels and reactors 📦 Surface Treatments Available Black oxide coating Zinc plating (white/yellow passivation) Hot dip galvanizing Xylan/PTFE coating Phosphate coating 🏭 Why Choose Aanuraj Fasteners Pvt Ltd? In-house forging, CNC machining, and thread rolling Traceable heat numbers and quality reports ISO-certified manufacturing processes Fast delivery and custom packaging Large stock of finished and semi-finished B7 fasteners

Aanuraj Fasteners Private Limited

G6-A, Unit No. 10, Sagar Industrial Estate, Dhumal Nagar Waliv, District Thane Vasai - 401208, Maharashtra, India

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