ASTM A105 Flange Manufacturer | EN 1092-1 Type 11 Weld Neck Flange Supplier

Carbon Steel Flanges Compliant with ASTM A105 / A105N, EN 1092-1, DIN 2633 Standards

High Quality ASTM A105 Flange Manufacturer

As a leading ASTM A105 flange manufacturer, we supply high-quality carbon steel flanges to the Netherlands and European markets. Our flanges meet ASTM A105 / A105N specifications while fully compatible with EN 1092-1 and DIN standards commonly used in Dutch industrial applications.

Key Specifications:

Material: ASTM A105, A105N, A350 LF2, Rst37.2
Standards: ASTM A105, ASME B16.5, EN 1092-1, DIN 2633/2634/2635
Pressure Ratings: Class 150-2500 (ANSI) / PN6-PN400 (EN/DIN)
Sizes: DN15 (1/2″) to DN4000 (160″)
Types: Weld Neck (Type 11), Slip On (Type 01), Blind (Type 05), Plate, Threaded

Standards Comparison: ASTM vs EN 1092-1 vs DIN

Dutch engineers often work with multiple standards. Here’s the complete conversion reference:

ANSI/ASME	EN 1092-1 Type	DIN Standard	Pressure Class	Common Applications
Class 150	Type 01/11/05	DIN 2576/2633	PN10-PN16	General piping, water treatment
Class 300	Type 01/11/05	DIN 2634	PN25-PN40	Oil & gas, chemical plants
Class 600	Type 01/11/05	DIN 2635	PN63-PN100	High-pressure systems
Class 900	Type 11/05	DIN 2637	PN160	Power plants, offshore
Class 1500	Type 11/05	DIN 2638	PN250	Heavy industrial

Material Equivalents

ASTM Standard	EN/DIN Equivalent	Material Grade	Application
ASTM A105	1.0460 / Rst37.2	C22.8 / P250GH	General carbon steel
ASTM A105N	1.0460 + N	Normalized	Low temperature
ASTM A350 LF2	1.1121	P245GH	Low temperature service
ASTM A694 F52	1.0425	P265GH	High yield strength

EN 1092-1 Type 11 Weld Neck Flange (Equivalent to ANSI Weld Neck)

Most Popular for Dutch Pipeline Projects

The EN 1092-1 Type 11 weld neck flange is the European equivalent of ANSI/ASME weld neck flanges. Designed for critical applications where weld integrity is paramount.

Technical Features:

Facing: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Welding End: Butt weld (BW) per EN 12627 / ANSI B16.25
Surface Finish: Spiral serrated (3.2-6.3 μm Ra) or smooth finish
Marking: EN 10204 3.1 or 3.2 material certificates

Dimensions (Selected):

DN	PN16 OD (mm)	PN16 Thickness (mm)	PN40 OD (mm)	PN40 Thickness (mm)	Bolts PN16	Bolts PN40
50	165	20	165	20	4×M16	4×M16
100	220	24	235	28	8×M16	8×M20
150	285	26	300	32	8×M20	8×M24
200	340	30	375	36	12×M20	12×M27
300	445	34	485	44	12×M20	16×M30

Full dimension charts available upon request

Industries We Serve in the Netherlands

Our ASTM A105 flanges are widely used across Dutch industrial sectors:

Oil & Gas Industry

Applications: Offshore platforms, refineries, pipeline systems
Standards: API 6A, NORSOK M-630, EN 1092-1
Special: NACE MR0175/ISO 15156 sour service compliance

Chemical & Petrochemical

Applications: Process piping, reactor connections, storage terminals
Standards: EN 12516, ASME B16.34
Materials: ASTM A105, A350 LF2 for low temperatures

Water Treatment & Desalination

Applications: Municipal water systems, desalination plants
Standards: EN 545, EN 593
Coatings: Epoxy, galvanizing, fusion bonded epoxy (FBE)

Power Generation

Applications: Steam systems, cooling water, fuel handling
Standards: EN 10222, ASME Section VIII
Certifications: PED 2014/68/EU, ATEX available

Shipbuilding & Maritime

Applications: Ballast systems, fuel lines, cargo handling
Standards: IACS, EN 13445
Materials: Shipbuilding grade carbon steel

One-Stop Flange Provider for All Your Needs

SSM has significant product advantages in manufacturing A105 Flange. Whether it’s quality or price, we will meet your needs.

Certifications & Quality Assurance

European Compliance Guaranteed

Certification	Description	Relevance to Dutch Market
CE Marking	PED 2014/68/EU compliance	Mandatory for EU pressure equipment
ISO 9001:2015	Quality management	Standard requirement for Dutch buyers
EN 10204 3.1/3.2	Material inspection certificates	Required for traceability
TÜV Rheinland	Third-party inspection	Trusted by European purchasers
NACE MR0175	Sour service resistance	Oil & gas industry requirement
AD 2000 Merkblatt	German pressure vessel standard	Recognized in Netherlands

Quality Control Process:

Incoming Material: PMI (Positive Material Identification) testing
Forging Process: Ultrasonic testing (UT) of raw forgings
Machining: Dimensional inspection per ISO 2768-m
Final Inspection: Visual, dimensional, and surface finish checks
Documentation: Mill test certificates per EN 10204

Why Dutch Buyers Choose Us

Logistics Advantages for Netherlands

Rotterdam Port Delivery: Optimized shipping to Europe’s largest port
Customs Clearance: Pre-cleared documentation for smooth EU import
Stock in Europe: Selected sizes available from European warehouse (3-5 days delivery)
Incoterms: FOB, CIF Rotterdam, DDP available

Technical Support

Standard Conversion: Full ASTM ↔ EN 1092-1 ↔ DIN technical support
CAD Drawings: 2D/3D drawings provided for all flange types
Pressure Calculations: Assistance with flange selection per EN 13445
Welding Procedures: WPS/PQR documentation support

Flexible Ordering

Order Type	Minimum Order	Delivery Time	Best For
Stock Items	1 piece	3-7 days	Emergency repairs
Mill Production	50 pcs/size	4-6 weeks	Project orders
Container Load	Mixed sizes	6-8 weeks	Regular supply

Product Range

By EN 1092-1 Type

Type 01 (Plate Flange/Slip-On): DIN 2576, DIN 2501
Type 11 (Weld Neck Flange): DIN 2633, DIN 2634, DIN 2635
Type 05 (Blind Flange): DIN 2527
Type 02 (Loose Plate): DIN 2641, DIN 2642
Type 32 (Weld-on Collar): DIN 2673

By ANSI/ASME Class

Class 150: Low pressure, general purpose
Class 300: Medium pressure, industrial
Class 600: High pressure, oil & gas
Class 900/1500: Critical applications
Class 2500: Extreme pressure

Special Coatings & Finishes

Standard: Rust-preventive oil, black paint
Galvanized: Hot-dip galvanized per EN ISO 1461
Epoxy Coating: FBE, 3LPE for corrosion resistance
Stainless Steel Clad: 304/316 overlay for corrosion areas

Request a Quote

Get your ASTM A105 flange quotation within 24 hours

Required Information for Quotation:

Flange type (Weld Neck, Slip-On, Blind, etc.)
Standard (ASTM A105, EN 1092-1 Type 11, DIN 2633)
Size (DN or NPS) and pressure rating (PN or Class)
Quantity required
Delivery location (Rotterdam, Amsterdam, or other)

More Resources:

https://en.wikipedia.org/wiki/Stainless_steel