A Comprehensive Guide on Manufacturing Stainless Steel 904L Hex Bolts

Stainless Steel 904L Hex Bolts are a specialized type of fastener known for their exceptional corrosion resistance and durability. These bolts are primarily made from Stainless Steel 904L, a high-alloy austenitic stainless steel that contains high levels of nickel and molybdenum. Here are some key features, machining considerations, heat treatment, and applications of Stainless Steel 904L Hex Bolts:

Features:

Corrosion Resistance: One of the standout features of Stainless Steel 904L Hex Bolts is their remarkable resistance to a wide range of corrosive environments, including sulfuric acid, chloride solutions, and other aggressive chemicals.
High Alloy Content: The high nickel and molybdenum content in Stainless Steel 904L contributes to its corrosion resistance and provides excellent strength and toughness.
Temperature Resistance: These bolts can withstand elevated temperatures, making them suitable for applications in harsh environments.
Non-magnetic: Stainless Steel 904L is non-magnetic, which can be an important feature in certain applications.

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UNS
N08904
WNR
1.4539
ASTM / ASME
ASTM A193 / SA193
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Machining Considerations: Machining Stainless Steel 904L can be challenging due to its high nickel content and work-hardening properties. It requires suitable cutting tools, slow speeds, and ample coolant to manage heat buildup during the process. Professionals must employ precision machining techniques to achieve the desired dimensions and smooth surfaces.

Heat Treatment: Stainless Steel 904L Hex Bolts are typically solution annealed at temperatures around 1090-1175°C (1994-2147°F) followed by quenching in water or rapid cooling. This process helps in relieving stresses and restoring the material's mechanical properties.

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SS 904L Hex Bolts Specification

Specifications	ASTM A193 / ASME SA193
Standard	ISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards
Size	M3 - M100 \| 3/6″ - 4″ \| Custom Sizes
Length	3 mm - 200 mm \| Custom Sizes
DIN Standard	B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS	NPT, UNS, UNF, UNC, UNEF, NPTF
ISO	ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Threads	UNF, BSW, BSF, METRIC, UNC, or as required
Surface Coating	Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing Process	Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Applications:

Chemical Processing: Stainless Steel 904L Hex Bolts are commonly used in industries dealing with sulfuric acid, phosphoric acid, and other aggressive chemicals, such as in the production of fertilizers, petrochemical plants, and pharmaceutical manufacturing.
Marine Environments: Due to their exceptional corrosion resistance, these bolts are favored for applications in marine environments, including boat construction and offshore oil and gas platforms.
Heat Exchangers: They are used in heat exchanger systems where exposure to high temperatures and corrosive fluids is common.
Pollution Control Equipment: In applications like flue gas desulfurization systems, where resistance to acidic gases is crucial.
Pulp and Paper Industry: Stainless Steel 904L Hex Bolts find applications in the pulp and paper industry, particularly in digesters and bleach plants.

Quality Assurance

To preserve the high standards of our selection of industrial Hex Bolt, we have always adhered to a systematic quality management process.

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Equivalent Grades Of Stainless Steel 904L Hex Bolts

STANDARD	WERKSTOFF NR.	UNS	JIS	KS	BS	AFNOR	EN
SS 904L	1.4539	N08904	SUS 904L	STS 317J5L	904S13	Z2 NCDU 25-20	X1NiCrMoCu25-20-5

Chemical Composition of Stainless Steel 904L Hex Bolts

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Cu
SS 904L	0.020 max	2.00 max	1.00 max	0.040 max	0.030 max	19.00 – 23.00	4.00 – 5.00 max	23.00 – 28.00	1.00 – 2.00

Mechanical Properties of SS 904L Hex Bolts

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.95 g/cm3	1350 °C (2460 °F)	Psi – 71000 , MPa – 490	Psi – 32000 , MPa – 220	25 %

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Types of Stainless Steel 904L Hex Bolts

SS 904L Hex Bolt

SS 904L Heavy Hex Bolt

SS 904L Hex Tap Bolt

SS 904L Hex Flange Bolt

SS 904L Half Threaded Hex Bolt

904L SS Fully Threaded Hex Bolt

SS 904L Hex Machine Bolt

SS 904L Hex Shoulder Bolt

Hex Bolt Manufacturers In India

Hardness testing to ISO 6508-1
Nut proof load testing to ISO 898-2
Suitability for preloading to EN 14399-2
Calibrated gauges and tools

Other Types Of Stainless Steel 904L Hex Bolts

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Stainless Steel 904L Hex Bolt Supplier in India	SS 904L Hex Bolt Price List
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SS 904L Hex Bolt Supplier in Mumbai	904L SS Hex Bolt Manufacturer
SS 904L Hex Bolts Manufacturers in Mumbai	A4 Stainless Steel 904L Hex Bolt

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Stainless Steel 904L Hex Bolt

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