Dipti Metal Industries is a leading manufacturer, exporter, and stockist of carbon steel flanges. Our S355J2 / 1.0570 (ST52-3) flanges are produced to EN, DIN, BS, UNI, JIS, and ASTM/ASME interfaces, supplied worldwide with EN 10204 3.1 certification.
Product Overview
Grade: S355J2 / 1.0570 (ST52-3)
Standards: EN 1092-1; DIN 2573/2576/2631–2635; BS 4504; UNI series; JIS B2220; ASTM/ASME interfaces
Range: DN 15–2000 (1/2″–80″); PN6–PN40
Facing: RF, FF; serrated finish
Coating: Oiled / painted on request
S355J21.0570ST52-3
Properties (Typical)
Property
Value
Yield Strength (Reh)
≥ 355 MPa (t ≤ 16 mm)
Tensile Strength (Rm)
470–630 MPa
Elongation (A)
≥ 22%
Impact
27 J @ −20°C (J2)
Chemical Composition (%) — Typical
C
Mn
P
S
N
≤ 0.20
≤ 1.60
≤ 0.030
≤ 0.030
≤ 0.012
Values are typical for S355J2 per EN 10025-2 and may vary by thickness; supplied MTC governs.
Types of Flanges in S355J2
Plate Flange (EN 1092-1 Type 01)
Weld Neck Flange (WN)
Slip-On Flange (SO)
Blind Flange (BL)
Threaded Flange (TH)
Lap Joint Flange (LJ)
Long Weld Neck Flange (LWN)
Reducing Flange
Expander Flange
Orifice Flange
Spectacle Blind / Spade & Spacer
Square / Rectangular Flanges
Swivel / Custom Flanges
Standards We Manufacture To
European & International
EN 1092-1 (PN6–PN40)
DIN 2573/2576; DIN 2631–2635; DIN 2527
BS 4504 / BS EN 1092-1
UNI flange series
JIS B2220 (5K/10K/16K)
ASTM / ASME Interfaces
We can supply ASME B16.5/B16.47 drilling and facings in S355J2 for compatible low/medium-pressure utilities (subject to client approval). For higher pressure classes, see our ASTM A105/A350 LF2 pages.
Supply Range
DN 15–2000 (1/2″–80″)
PN6, PN10, PN16, PN25, PN40
RF/FF facing, serrated
Finishes
Machined, cleaned & oiled
Protective caps & packaging
Painted / coated on request
Quality & Documentation
MTC EN 10204 3.1
NDT (UT/MT/PT) on request
TPI by BV, TUV, LR, SGS
Applications
Structural connections & OEM
General industrial & utility piping
Water, fire-fighting & HVAC lines
Moderate pressure/process services
Skids, equipment nozzles, manifolds
Fabrication and maintenance
For high-temperature/sour/critical pressure service, select materials per project spec (e.g., P245GH, P265GH, A105, LF2).
Importing Countries & Major Cities
We ship S355J2 EN flanges to EPCs, distributors, OEMs and fabricators in:
GCC: Dubai, Abu Dhabi, Sharjah, Muscat, Sohar, Doha, Dammam, Al-Jubail, Riyadh, Jeddah, Kuwait City, Manama
Americas: Houston, Dallas, Chicago, New York, Los Angeles, Toronto, Montreal, Vancouver, Mexico City, Monterrey, São Paulo, Rio de Janeiro, Buenos Aires, Santiago, Lima
Asia-Pacific: Singapore, Kuala Lumpur, Bangkok, Jakarta, Ho Chi Minh City, Hanoi, Manila, Shanghai, Guangzhou, Shenzhen, Seoul, Tokyo, Osaka, Sydney, Melbourne, Auckland