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Stockholder & manufacturer · ISO 9001:2015 · Part of the Petrochem Group

Stacked stainless steel pipe ends

Pipe and tube

Carbon steel seamless
nominal bore pipe

ASTM/ASME SA106 Grade B seamless pipe to ASME B36.10, in Standard and Extra Strong wall from ½" to 12", black lacquered and in stock.

SA106 Grade B seamless pipe for pressure service

Midsteel supplies quality carbon steel seamless nominal bore pipe for a wide range of industrial and commercial applications. Made to ASTM/ASME SA106 Grade B, the most widely specified carbon steel for high-temperature and pressure pipework, and dimensioned to ASME B36.10, our pipe suits demanding pressure and structural uses.

Stock is held in Standard weight and Extra Strong schedules from ½" to 12" nominal bore, with a black lacquered finish for protection in storage. Pair it with our SA234 WPB butt weld fittings and SA105N flanges for a matched carbon steel system.

Black lacquered carbon steel seamless nominal bore pipe held in stock at Midsteel.

Specification

Carbon steel pipe specification

Material ASTM/ASME SA106 Grade B
Manufacture Seamless
Dimensions ASME B36.10
Schedules Standard weight (Std) and Extra Strong (XS)
Size range ½" to 12" nominal bore
Finish Black lacquered
Origin Non-European
Certification ISO 9001, PED and EN 10204 3.1

Other grades, pressure ratings and wall thicknesses are available on request. Material test certificates to EN 10204 3.1 are supplied as standard.

In stock

In stock

  • ½" to 12" NB seamless pipe
  • Standard weight wall
  • Extra Strong (XS) wall
  • Black lacquered finish
  • Galvanised pipe also available

Where SA106 Grade B is used

SA106 Grade B is the workhorse carbon steel pipe for process plant, steam, hydrocarbon, compressed air and utility services, rated for high-temperature pressure duty. Because it is seamless, it has no longitudinal weld to inspect, which is why many specifications call for it over welded alternatives.

For systems that will be exposed to the weather or used for water and fire protection, ask about our hot dip galvanised seamless pipe.

Complete the line

Match your pipe with carbon steel fittings and flanges from the same stockholder.

  • SA234 WPB butt weld fittings
  • SA105N forged fittings and flanges
  • Carbon steel stub ends
  • ISO 9001:2015Lloyd’s (LRQA) approved quality system
  • EN 10204 3.1 certsFull material traceability as standard
  • Same-day serviceAvailable on urgent stock and machined specials
  • In-house machiningSpecials and hard-to-find sizes made to order

FAQs

Carbon steel pipe questions

Can't find the answer? Our sales team can advise on grades, standards and lead times.

We stock SA106 Grade B seamless pipe from ½" to 12" nominal bore in Standard and Extra Strong wall.
It is supplied black lacquered, a temporary finish that protects it in storage and transit. It is normally painted or coated after fabrication.
Other schedules may be available on request. Contact our sales team with your requirement.

Need a price or a delivery date?

Send us your enquiry, schedule or drawing and our sales team will come back to you with stock, price and lead time.