De | En

ASME / ASTM Pipe equipment

From high-pressure fittings to RTJ gaskets, we at rff also supply bespoke equipment according to ASME standards for a wide variety of systems and pipelines in addition to our range of pipes, flanges and butt weld fittings.

We are a one stop shop supplier with an extensive stock and delivery programme. Our products include forged steel fittings, outlets, pipe and swage nipples, bolts, and RTJ gaskets for ASME standard flange connections.

Designs and standards

We at rff provide a full range of forged steel fittings, unions and pipe and swage nipples as well as branch outlet fittings according to ASME and MSS standards. In addititon, we also provide a selection of RTJ gaskets according to ASME B 16.20/21 as well as nuts and bolts for all common flange connections according to ASME B 16.5 and 16.47. Refer to the overview for more details.

rff+ Download with login. Log in here or sign up for our media centre.

Designs Type Class According to
Forged Steel Fittings      
Elbows, Tees, Crosses
Street Elbows
Couplings, Caps
Head Plugs, Bushings
Hexagonal Nippels
Reducing Inserts
NPT / Socket Weld
NPT / Socket Weld
NPT / Socket Weld
Socket Weld
2000 / 3000 / 6000
3000 / 6000
3000 / 6000

3000 / 6000
ASME B 16.11
ASME B 16.11
ASME B 16.11
ASME B 16.11
B.S. 3799
B.S. 3799
Unions, Pipe- / Swage Nippels, Outlets      
Pipe Nippels
Swage Nippels 
Branch Outlet Fittings
NPT / Socket Weld
Concentric / Eccentric
3000 MSS SP-83
ASME B 36.10/36.19
Screws and gaskets      
Bolts and nuts
Gaskets for Ring type joint
    ASME B 16.5 / 18.2.2
ASME B 16.20 / 21

General information

Information on forged steel fittings acc. to ASME rff+ Datasheet
Overview and thicknesses B 16.11 Download

Material grades

ASME covers a wide range of materials used for unalloyed, alloyed heat-resistant, low-temperature and stainless steel material grade pipe fittings. We supply all common types available for delivery.

Material selection Material groups
A/SA 234, Grade WPB Unalloyed heat-resistant
A/SA 234 Grade WP5, 11, 12, 22, 91 Alloyed heat-resistant
A/SA 420 Grade WPL6 Low-temperature
A 860 Grade WPHY42, 52 High yield steel
L290NE, L360NE High yield steel
A/SA 403 Grade WP 304/l, 321/H, 316/L Stainless steel
UNS S31803 (Duplex), UNS S32750 (Superduplex) Duplex / Superduplex
Special Alloys Special steel

Products compatible with our ASME pipe equipment

Product catalogues

Refer to our media centre for more details on pipes, flanges, butt weld fittings and pipe equipment according to DIN, EN and ASME.

rff+ Download with login. Please sign up for this service.

DIN EN / DIN Butt weld fittings

DIN EN / DIN Butt weld fittings

Delivery guaranteed

Our delivery programme covers all needs for elbows, tees, reducers and caps according to DIN EN 10253 Parts 1 to 4.

ASME / ASTM / API 5L Pipes

ASME / ASTM / API 5L Pipes

Top quality

Seamless and welded pipes in unalloyed, alloyed, low-temperature and stainless steel according to ASME/ASTM standards.