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Stainless Steel 904L Fasteners

Stainless steel 904l fasteners specifications

What are Stainless Steel 904L Fasteners?

The chemical composition of these products is chromium (19-21%) and nickel (~26%) with nitrogen and molybdenum (up to 4.5%). Stainless steel 904L fasteners have a low carbon amount – about 0.02% – which explains the 'L'.

Applications demanding corrosion resistance and strength, like petrochemicals, flue gas desulfurisation, and oil refineries, use SS 904L bolts.

Stainless steel 904l hex bolt manufacturer in India

What are the properties and characteristics of Stainless Steel 904L Fasteners?

Manifest Alloys can deliver 904L stainless steel fasteners like nuts, bolts, and threaded rods. Their uses range from heat exchangers to pollution control equipment and paper plants. A stainless steel 904L hex head bolt resists intergranular corrosion and precipitation during welding.

These fasteners can perform comfortably at temperatures up to 400°C. Their hardness is 70 to 90 on the Rockwell B scale.


Specification of stainless steel 904l fasteners

Specifications Size Length
ASTM A193 / A193, ASME SA193 / SA194 M3 - M56 , 3/6" - 2" 3 mm to 200 mm
Threads Standard Types
BSF, BSW, UNF, UNC, METRIC DIN, ASTM, BS Hex bolt, nut, stud bolt, screws, washers

Based in Mumbai, Manifest Alloys specializes in supplying high-quality 904L stainless steel fasteners for various industries, please check advantages of using SS 904L bolts

What are the advantages of using high-quality 904L stainless steel fasteners?

DIN 1.4539 studs deliver standout performance in abrasive conditions, handling chlorides and sulfuric acid. Sourcing these high-quality fasteners grants:

  • Good dimensional accuracy
  • Decent temperature tolerance
  • Superior surface finish
  • High malleability
ss 904l fasteners

Types of SS 904l fastener


Stainless Steel 904l bolt

Stainless Steel 904l bolt

Stainless steel 904l nuts

Stainless steel 904l nuts

SS 904l hex bolt

SS 904l hex bolt

UNS S08904 fasteners

UNS S08904 fasteners

Tensile strength testing revealed that the UNS S08904 hex bolts and 904L SS threaded rod could withstand an impressive amount of force before yielding

What is the minimum tensile strength required for 904L stainless steel fasteners to meet industry standards?

We ensure the fasteners we deliver adhere to international specifications, for example, an ASTM A193 stainless steel 904L stud bolt. The minimum designated tensile strength is 490 MPa; the yield strength is 220 MPa.

Tensile testing is essential to guarantee compliance. We tabulate the results (with full traceability) for a 904L SS threaded rod in the accompanying Mill Test Report.

Chemical composition of stainless steel 904l hex bolt


C Si Mn S P Ni Cr
0.08 max
0.75 Max
2 max
0.030 max
0.045 max
8 - 11
18 - 20
We can provide custom surface finishes for our ASTM A193 stainless steel 904L stud bolt and DIN 1.4539 studs, such as black oxide, zinc plating, and passivation, to meet the unique requirements of different applications

What are the benefits of different surface finishes for 904L stainless steel fasteners?

We provide multiple finish options for an SS 904L nut to enhance corrosion resistance, aesthetics, and durability. For instance, buyers can choose from galvanisation or zinc coating, PTFE, cadmium, and phosphate coats for 904L screws.

Mechanical properties of SS 904l nut


Grade Density Tensile strength Melting points Elongation Yield strength(0.2% offset)
SS 8.0g/ cm3 PSI-75000, MPa-515 1400°C (255°F) 35% PSi-30000, MPa-205
If you want to learn more about the cost-effective advantages of using SUS 904L socket head cap screw and 904L Screws, contact our knowledgeable sales team.

What are the cost-effective advantages of 904L stainless steel fasteners?

The upfront cost of UNS S08904 hex bolts is high, but their durability is superb. It makes them a cost-effective choice with time.

A SUS 904L socket head cap screw also limits corrosion, pitting, and operational wear.

Equivalent grade of SS 904l stud bolt


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
SS 1.4301 S30400 SUS 304 304S31 08X18H10 Z7CN18-09 X5CrNi18-10

Application of stainless steel 904l fasteners


  • → Heat exchangers
  • → Off-shore oil drilling
  • → Gas processing
  • → Petrochemicals
  • → Aircraft exhaust
  • → Power generation
  • → Sea water equipment
  • → Pharmaceuticals

Weight chart of stainless steel 904l hex bolt


Size (UNC) Weight / metre Size (mm) Weight / mtr
3/8” 0.469 M10 0.500
¼” 0.194 M6 0.177
½” 0.896 M12 0.725
5/16” 0.323 M8 0.319
5/8” 1.342 M16 1.330
9/16” 1.096 M14 0.970
1” 3.638 M24 3.000
¾” 2.021 M20 2.080
1 ½” 8.281 M36 6.900
2 14.741 M48 12.400
1 ¼” 5.718 M30 4.750