Fasteners Manufacturer & Supplier | Duplex S31803 & S32205 | Pooja Steel & Alloys

Pooja Steel & Alloys is a leading fastener Manufacturer with high-quality fastening solutions that aim at giving strong, secure, and durable joints in industrial and structural use. These fasteners are made out of quality raw materials in order to provide the highest level of strength, resistance to corrosion, and dimensional precision. Their common application is in the construction, machinery, automotive, oil and gas, and engineering sectors that require safety and durability. Another product we provide are Screws wich are designed to fit specific threading requirements and offer secure tightening across a variety of bolting applications.

Material & Grades Table – Fasteners

Material	Grade / Standard	Size / Thickness / Diameter	Extra Specification	Weight (kg/1000 pcs)
Stainless Steel	SS 304 / ASTM F593/F594	M3–M36	General-purpose corrosion-resistant fasteners	Approx. 1–800
Stainless Steel	SS 316 / ASTM F593/F594	M3–M36	Marine and chemical applications	Approx. 1–800
Stainless Steel	SS 316L	M3–M36	Low-carbon corrosion-resistant fasteners	Approx. 1–800
Carbon Steel	ASTM A307 / A563	M4–M36	General industrial fastening	Approx. 2–900
Carbon Steel	ASTM A325 / A490	1/2–1-1/2 in	Structural high-strength fastening	Approx. 40–1000
Alloy Steel	ASTM A193 Grade B7	M8–M48	High-temperature and pressure applications	Approx. 10–1500
Alloy Steel	ISO 898-1 Class 8.8	M5–M36	High-strength metric fastening	Approx. 2–900
Alloy Steel	ISO 898-1 Class 10.9	M5–M36	Heavy-duty mechanical applications	Approx. 2–900

Note: Weight may vary depending on fastener type, dimensions, thread configuration, material density, head style, washer/nut configuration, coating, and manufacturing tolerances.

Key Features & Advantages

• Wide range of fastening components for industrial applications
• High mechanical strength and reliable joint performance
• Excellent dimensional accuracy and thread consistency
• Stainless steel options provide excellent corrosion resistance
• High-strength alloy steel grades support demanding applications
• Available in standard and customized configurations
• Suitable for construction, machinery, piping, automotive, and fabrication

Chemical Composition

Representative Grade: Stainless Steel 316

Element	Percentage (%)
Chromium (Cr)	16.0–18.0
Nickel (Ni)	10.0–14.0
Molybdenum (Mo)	2.0–3.0
Manganese (Mn)	2.00 max.
Carbon (C)	0.080 max.
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	515 MPa min.
Yield Strength	205 MPa min.
Elongation	40% min.
Hardness	95 HRB max.

Equivalent Grade

Standard	Grade
ASTM	F593 / F594 Type 316
UNS	S31600
EN	1.4401
DIN	X5CrNiMo17-12-2