Metalloy International is a distinguished manufacturer and exporter in the industry, excelling in producing Stainless Steel 321/321H Fasteners. We specialize in providing these fasteners in diverse configurations, tailored meticulously as per the customer's shape, size, length, and dimensions specifications.

We manufacture SS 321/321H Fasteners with an intricately balanced austenitic-ferritic stainless steel composition. These fasteners are primarily used in a corrosive environment due to their high resilience against localized corrosion such as pitting, crevice, and stress corrosion cracking. The unique blend of austenitic and ferritic elements forms a structure that can withstand demanding high-stress scenarios efficiently. Every ASTM A193 SS 321 Bolt we produce is composed of premium-grade components. Inclusion of Titanium, Carbon, and Nickel, these ASME SA193 SS 321H Nut display exceptional corrosion-resistant properties in most environmental conditions. These elements allow our fasteners to resist pitting and crevice corrosion, even in oxidizing and acidic solutions. 

At Metalloy International, our mission is to deliver remarkable products. Optimizing convenience, we offer fasteners that effectively solve an array of industrial applications, adhering strictly to international and national quality benchmarks and well-defined manufacturing protocols. We conduct a comprehensive series of destructive and non-destructive tests at multiple production stages to guarantee impeccable standards. Utilizing advanced techniques, state-of-the-art machinery, and robust tools, we effortlessly meet bulk orders for ASME SA193 SS 321H Stud Bolt. Fasteners, addressing urgent delivery scenarios proficiently.

We offer customized and standard ASME SA193 SS 321 Nut, ensuring they reach our customers well-protected, using suitable packaging to avoid transport-induced damages. Driven by our commitment to prompt delivery and affordability, we employ reasonable shipping methods to deliver our fasteners timely and at competitive prices.

Specifications: ASTM A 193 / ASME SA 193

Standard: DIN, ASTM, BS and all International Standards

Length:3 mm to 200 mm

Size : M3 - M56 | 3/6" to 2" | Custom Sizes

ASTM A 193 SS 321 Bolt

ASTM A 193 SS 321 Bolt

ASME SA 193 SS 321H Nut

ASME SA 193 SS 321H Nut

UNS S32100 Washer

UNS S32100 Washer

DIN.1.4878 Stud Bolt

DIN.1.4878 Stud Bolt

ASTM A 193 SS 321 Screw

ASTM A 193 SS 321 Screw

STANDARDWERKSTOFF NR.UNSJISEN
SS 3211.4541S32100SUS 321X6CrNiTi18-10
SS 321H1.4878S32109SUS 321HX12CrNiTi18-9
GradeMnNPCSCrMoSiNiOther
321min.max2.000.100.045-0.080.03017.019.0-0.759.012.0Ti=5(C+N)0.70
321Hmin.max2.00-0.0450.040.100.03017.019.0-0.759.012.0Ti=4(C+N)0.70
GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max
3215152054095217
321H5152054095217
ProductPrice Per kg (*)
ASTM A 193 SS 321 Bolt₹250/ kg
ASME SA 193 SS 321H Nut₹180/ kg
UNS S32100 Threaded Rod₹230/ kg
DIN.1.4878 Stud Bolt₹150/ kg

Note: All prices mentioned are subject to change due to the volatility of the market. These prices are provided for informational purposes and may fluctuate without prior notice. We advise verifying current prices before making any purchases.

Bridges

Bridges

Construction

Construction

Engineering

Engineering

Petrochemical Industry

Petrochemical Industry

Ship Building

Ship Building

General Structural Purposes

General Structural Purposes

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