Stainless Steel Hydraulic Fittings

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Paul Tube Fittings is a Houston, USA-based leading manufacturer and supplier of high-quality stainless steel hydraulic fittings. With the reputation of precision engineering and durability, the company provides products that are capable of withstanding the stringent requirements of hydraulic systems used in diversified industries. Providing a diversified line of fittings according to international standards, Paul Tube Fittings ensures long service life, reliability, and performance. Their commitment to quality, customer care, and timely delivery has given them trust in industries such as oil & gas, construction, transport, and manufacturing, not only in the United States but also in international markets.

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Stainless steel hydraulic fittings consist mainly of chromium (16–18%), nickel (8–12%), and molybdenum (2–3%), with iron as the base metal. This makes them excellent in corrosion resistance and durability. Such fittings usually have a tensile strength of about 515 MPa and yield strength of about 205 MPa. They have good elongation, toughness, and fatigue resistance, hence are ideal for severe, high-pressure, and high-temperature applications. Moreover, their non-magnetic character in the annealed state increases their performance and versatility in most hydraulic applications.

Stainless Steel Hydraulic Fittings Specifications

DESIGN STANDARD	DIN 2353/ ISO 8434-1
MATERIAL	SS 304 ,SS 304L , SS 316 ,SS 316L, SS 316TI ( 1.4571) , SS 310, SS 347
MATERIAL
WORKING PRESSURE	(LOW) LL SERIES – 100 BAR
	(MEDIUM)L SERIES – 100 BAR TO 500 BAR
	(HEAVY)S SERIES – 200 BAR TO 800 BAR
SIZE RANGE	LL SERIES – 4LL TO 12LL
	L SERIES – 6L TO 42L
	S SERIES – 6S TO 38S
CONNECTIONS	TUBE TO TUBE , TUBE TO MALE THREAD , TUBE TO FEMALE THREAD , TUBE TO BUTT WELD , TUBE TO SOCKET WELD , TUBE TO JIC 37* , TUBE TO 24* CONE, TUBE TO SWIVEL END , TUBE TO ADJUSTBALE STANDPIPE
CONNECTIONS	WELD NIPPLE TO MALE THREAD , WELD NIPPLE TO FEMALE THREAD , WELD NIPPLE TO BUTT WELD , WELD NIPPLE TO SOCKET WELD , WELD NIPPLE TO 24* CONE , WELD NIPPLE TO 37* JIC , WELD NIPPLE TO SWIVEL
BODY TYPE	FORGED, BAR STOCK
SURFACE	STAINLESS STEEL – EXPORT BRIGHT FINISH, SHORT BLASTED FINISH, ELECTROPLATED FINISH
TEMPERATURE	(-60C TO 400C)

APPLICATIONS & INDUSTRIES	CONSTRUCTION EQUIPMENTS , DRILLING PLATFORMS, HYDRO POWER PLANTS , MACHINE TOOLS , RAILWAY TECHNOLOGY , SHIPBUILDING , WIND TUBRINE , MOBILE HYDRAULIC EQUIPMENT , MINNING , STATIONARY HYDRAULIC EQUIPMENT, INDUSTRIAL HYDRAULICS, INJECTION MOULDING MACHINERY , ALUMINUM DIE-CASTING MACHINERY, SINTERING MACHINERY, STEEL MILLS, HYDRAULIC PRESSES, PAPER PROCESSING MOBILE HYDRAULICS, BUILDING MACHINERY, AGRICULTURAL FORESTRY, LIFTING & MATERIAL HANDLING EQUIPMENT
MATERIAL DESIGNATOR	STAINLESS STEEL – ASTM A 276 , ASTM 182

Stainless Steel Hydraulic Fittings Chemical Composition

Type	Grade		ASTM A240 Chemical Composition
Type	ASTM(A240M)	Others(JIS)	C	Si	Mn	P	S	Ni	Cr	Mo	Others
Stainless Steels	304	SUS304	≤0.07	≤0.75	≤2.00	≤0.045	≤0.030	8.0/10.5	17.5/19.5	―	N≤0.10
	304H		0.04/0.10	≤0.75	≤2.00	≤0.045	≤0.030	8.0/10.5	18.0/20.0	―
	304L	SUS304L	≤0.030	≤0.75	≤2.00	≤0.045	≤0.030	8.0/12.0	17.5/19.5	―	N≤0.10
	304N	SUS304N1	≤0.08	≤0.75	≤2.00	≤0.045	≤0.030	8.0/10.5	18.0/20.0	―	N:0.10/0.16
	304LN	SUS304LN	≤0.030	≤0.75	≤2.00	≤0.045	≤0.030	8.0/12.0	18.0/20.0	―	N:0.10/0.16
	309S	SUS309S	≤0.08	≤0.75	≤2.00	≤0.045	≤0.030	12.0/15.0	22.0/24.0	―
	310S	SUS310S	≤0.08	≤1.50	≤2.00	≤0.045	≤0.030	19.0/22.0	24.0/26.0	―
	316	SUS316	≤0.08	≤0.75	≤2.00	≤0.045	≤0.030	10.0/14.0	16.0/18.0	2.00/3.00	N≤0.10
	316L	SUS316L	≤0.030	≤0.75	≤2.00	≤0.045	≤0.030	10.0/14.0	16.0/18.0	2.00/3.00	N≤0.10
	316H		0.04/0.10	≤0.75	≤2.00	≤0.045	≤0.030	10.0/14.0	16.0/18.0	2.00/3.00
	316LN	SUS316LN	≤0.030	≤0.75	≤2.00	≤0.045	≤0.030	10.0/14.0	16.0/18.0	2.00/3.00	N:0.10/0.16
	317L	SUS317L	≤0.030	≤0.75	≤2.00	≤0.045	≤0.030	11.0/15.0	18.0/20.0	3.0/4.0	N≤0.10
	317LN	SUS317LN	≤0.030	≤0.75	≤2.00	≤0.045	≤0.030	11.0/15.0	18.0/20.0	3.0/4.0	N:0.10/0.22
	321	SUS321	≤0.08	≤0.75	≤2.00	≤0.045	≤0.030	9.0/12.0	17.0/19.0	―	N≤0.10Ti:5ʷʢC+Nʣ/0.70
	347	SUS347	≤0.08	≤0.75	≤2.00	≤0.045	≤0.030	9.0/13.0	17.0/19.0	―	Nb:10ʷC/1.00
	904L	SUS890L	≤0.020	≤1.00	≤2.00	≤0.045	≤0.035	23.0/28.0	19.0/23.0	4.00/5.00	N≤0.10Cu:1.0/2.0
	S31254		≤0.020	≤0.80	≤1.00	≤0.030	≤0.010	17.5/18.5	19.5/20.5	6.0/6.5	N:0.18/0.25Cu:0.50/1.00
		SUS317J2	≤0.06	≤1.50	≤2.00	≤0.045	≤0.030	12.00/16.00	23.00/26.00	0.50/1.20	N:0.25/0.40

Stainless Steel Hydraulic Fittings Mechanical Properties

Type	Mechanical Properties for Stainless Steel Plates
	ASTM(A240M)	Others(JIS)	Tensile Properties			Hardness
	ASTM(A240M)	Others(JIS)	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)	HBW	HRBW
AusteniticSteels	304	SUS304	≥205	≥515	≥40	≤201	≤92
	304H		≥205	≥515	≥40	≤201	≤92
	304L	SUS304L	≥170	≥485	≥40	≤201	≤92
	304N	SUS304N1	≥240	≥550	≥30	≤217	≤95
	304LN	SUS304LN	≥205	≥515	≥40	≤217	≤95
	309S	SUS309S	≥205	≥515	≥40	≤217	≤95
	310S	SUS310S	≥205	≥515	≥40	≤217	≤95
	316	SUS316	≥205	≥515	≥40	≤217	≤95
	316L	SUS316L	≥170	≥485	≥40	≤217	≤95
	316H		≥205	≥515	≥40	≤217	≤95
	316LN	SUS316LN	≥205	≥515	≥40	≤217	≤95
	317L	SUS317L	≥205	≥515	≥40	≤217	≤95
	317LN	SUS317LN	≥240	≥550	≥40	≤217	≤95
	321	SUS321	≥205	≥515	≥40	≤217	≤95
	347	SUS347	≥205	≥515	≥40	≤201	≤92
	N08904/904L	SUS890L	≥220	≥490	≥35	≤196	≤90
	S31254		≥310	≥655	≥35	≤223	≤96
		SUS317J2	≥345	≥690	≥40	≤250	≤100

Top Stainless Steel Hydraulic Fittings Manufacturing Company in Houston

At Paul Tube Fittings, we are the largest supplier, manufacturer, and exporter of Stainless Steel Hydraulic Fittings in Houston, USA. Our advanced manufacturing facilities, strategically positioned in the USA, enable us to deliver high-quality solutions to meet your specific requirements. With a robust inventory of over 16,000 tons of top-grade materials, we are well-equipped to fulfil your needs promptly. Our commitment to excellence and efficiency ensures we always have the available stock to support your demands.

Types of Stainless Steel Hydraulic Fittings

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We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Largest Manufacturer and Supplier of Stainless Steel Hydraulic Fittings in Houston, USA

Paul Tube Fittings is a leading supplier and stockist of premium Stainless Steel Hydraulic Fittings in Houston, USA. Our products are widely utilized across various industries, and we are committed to delivering exceptional service and ensuring high customer satisfaction. Our distinctive finishing techniques set us apart in the metal industry. We are dedicated to consistently providing top-quality products while effectively addressing the needs of our customers.

Stainless Steel Hydraulic Fittings Uses

Stainless steel hydraulic fittings find widespread applications in industries requiring corrosion-resistant and leak-tight connections in fluid systems. Some of the general applications include hydraulic equipment employed in agriculture, construction, and mining industries, as well as for systems operated in oil & gas, marine, chemical processing, and aerospace industries. Stainless steel fittings are best suited for applications under corrosive and high-pressure conditions because of their strength, corrosion resistance, and durability. Their accurate design is easy to install and compatible with a wide range of tubing sizes and is thus vital for upholding the integrity and efficiency of critical hydraulic and fluid transfer systems.