ASTM A182 F304/316 1/2"-24" ANSI B16.5 for Industrial Piping Systems Stainless Steel Flanges

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Model NO.: ANSI B16.5/ANSI B16.47/DIN 2501/DIN 2527/JIS B2220
• Material: Stainless Steel
• Structure: Round
• Connection: Flanged
• Sealing Surface: RF
• Manufacturing Way: Forging
• Products: Butt Welded, Flat Blind Flanges, Slip on Flange
• Standard1: ASTM A182, GOST 12820-80, En1092-1, DIN 2573, 2576
• Standard2: ASTM/ASME B16.5 B16.36 B16.48 B16.47 Series a
• Steel Grade1: AISI 304, 304L, 316, 316L, Uns S31803 Uns S32750
• Steel Grade2: Uns S30403 / S30400 Uns S31603 / S31600
• Annual Capacity: 120000 Metric Tons
• Section Shape: Round
• Size: Nps 30
• Ends: Plain Ends
• Delivery: 7-35 Days
• Packgae: Packed by Bundles, Plastic Bags, Wooden Case,etc
• Application1: Oil/Gas Transport,Power Station,Chemical Industry
• Application2: Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Application3: Dewatering Transport,Marine Construction
• Application4: Pipeline/Pump/Valve Connection
• Transport Package: Seaworthy Package
• Specification: 3/4"-60"
• Trademark: EZ Steel
• Origin: China
• HS Code: 73043110
• Production Capacity: 500000/Year

Product Description

Stainless Steel Flanges ASTM A182 F304/316 1/2"-24" ANSI B16.5 for Industrial Piping Systems

 

Product Description

Type	WeldNeck Flange, Lap Joint Flange, Threaded flange, Socket Welding Flange,    Blind Flange,  Slip on Flange
Material	Stainless steel, Alloy steel. Duplex/Super Duplex, Aluminum
Size	3/4"-60"
Pressure	150#,300#,600#.900#,1500#,2500#
Technics	Forged,
Connection	welding
Sealing surface	FF RF M F M TG  RJ
Surface treatment	Anti-rust Oil,
Producing process	Billet-cutting-forging-heating-lathe-drilling-inspection-marking-packing-export-din flange
Application Fields	Chemical Industry /Petroleum Industry /Power Industry/Metallurgical Industry Building Industry /Ship-building Industry
Supply Capacity	8000tons  per  year
Min Order Quantity	1 ton
Inspection	factory in-house self-check or Third Party inspection
PACKING	plywood cases, pallets, nylon bags or according to the customers' requirements, plastic cap
Delivery	It is generally within 25 days after receiving your payment
TRADE TERM	FOB, CNF&CFR, CIF
PAYMENT	TT or L/C
CERTIFICATES	ISO-9001/2000,PED,ABS.TUV.DNV

 

Our ASTM A182 F304/F316 stainless steel flanges are high-performance piping components designed for industrial, chemical, and petrochemical applications. Manufactured to ANSI B16.5 standards, these flanges are available in sizes from 1/2" to 24" with various pressure ratings, providing reliable sealing solutions for demanding environments.

Key Features & Benefits

 Material Grades: F304 (1.4301) & F316 (1.4401) stainless steel
 Size Range: 1/2" to 24" (DN15 to DN600)
 Pressure Classes: 150#, 300#, 600#, 900#, 1500#, 2500#
 Standards Compliant: ASTM A182 + ANSI B16.5
 Corrosion Resistant: Excellent performance in acidic/chloride environments
 Temperature Range: -196°C to 800°C (-320°F to 1472°F)
 Surface Finish: Smooth machined face for optimal sealing

Technical Specifications

Parameter	Specification
Material Standard	ASTM A182
Grades Available	F304 (1.4301), F316 (1.4401), F316L (1.4404)
Size Range	1/2" - 24" (DN15 - DN600)
Pressure Ratings	Class 150, 300, 600, 900, 1500, 2500
Face Types	RF (Raised Face), FF (Flat Face), RTJ (Ring-Type Joint)
Dimensions	ANSI B16.5 compliant
Manufacturing	Forged & machined
Testing	PMI, Hydrostatic, Hardness Test

Why Choose Our Stainless Steel Flanges?

 Superior Corrosion Resistance - Ideal for chemical, marine, and oil & gas applications
 High-Temperature Performance - Maintains strength in extreme conditions
 Leak-Proof Sealing - Precision-machined surfaces ensure tight connections
 Long Service Life - Resists pitting, crevice corrosion, and stress cracking
 Global Certifications - ISO 9001, PED 2014/68/EU, NACE MR0175

Applications

• Oil & Gas Pipelines (Offshore/onshore)

• Chemical Processing Plants (Acid & alkali resistance)

• Water Treatment & Desalination

• Pharmaceutical & Food Industries (Sanitary options available)

• Power Generation (Steam & boiler systems)

 

 

FAQ

Q:  How many days can you deliver after confirmed the order?
A:  For stock:  within 5-7 days;
      For customized product:  around 30 days;
      For special sizes:  subject to negotiation.

Q: How does your company do quality control?
A: ISO 9001:2015 certified;
     Product certificate as per EN10204 3.1 or 3.2 as per customer's request.
    
  
Q: Can I have a factory-visit?
A:  Surely. All customers are welcome to visit us in China.

Q: Can I have a trial order?
A: Of course, it is an honor for us to have the opportunity to show our quality and service. 
 

Company Profile

	Business Type:	Manufacturer/Factory
	Main Products:	Carbon Steel Pipe , Stainless Steel Pipe , Copper Nickel Tube , Heat Exchanger Tube , Boiler ...
	Registered Capital:	2000000 RMB
	Plant Area:	>2000 square meters
	Management System Certification:	ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, ANSI/ESD
	Average Lead Time:	Peak Season Lead Time: 1-3 months Off Season Lead Time: within 15 workdays

SGS Serial NO. :

QIP-ASI199413Report Verification

EZ STEEL INDUSTRIAL Co., Ltd, together with LONG-RUN METALS Co., Ltd, is the export division and window company of EZ STEEL GROUP, which was founded in 1996 and has been committed to the development and manufacturing of industrial tubes in the past 20 years. It is one of the largest steel tube manufacturing enterprise groups in China. The group possess fixed assets over 200million and more than 800 employees with annual production capacity over 300 thousand tons.

The company has continuously introduced the world advanced manufacturing equipment and now is able to produce welded and seamless steel tube, copper tube and nickle alloy tube. We also have our own coating facilities and workshops for further processing. After years of development, EZ STEEL GROUP and the affiliated enterprises have obtained many kinds of domestic and international certifications including ISO 9001 Quality Management System Certification, ISO14000 Environment Management System Certification, CE, License for Manufacture of Pressure Piping in China, etc. The company has obtained good domestic achievements and is the nominated supplier of CNPC and CNOOC. The product are exported to Southeast Asia, the Middle East and Africa, Europe, Australia, North and Latin Americas via trade companies, and are widely used in pipeline works, foundation works, steel structure works, boiler and condenser fabrication, oil refinery plant, power plant, sugar-making plant, ship-building and offshore construction projects etc.

Holding the concept of First-class Brand, First-class Service, First-class Value, EZ STEEL GROUP is aiming to build up a win-win enterprise platform for both our customers and employees.
 

CONTACT US
Contact: Rosy Xu
EZ STEEL INDUSTRIAL CO., LTD
Add: No.199,  Xiangfu Road, Yuhua Industrial Zone, Changsha City , P.R China 

Pls. do not hesitate to contact me if you have any questions!

You are warm welcomed to visit our factory!!!

Thank you for visiting our products & Looking forward to hearing from you!