ASTM A358 Class 1 Welded Pipe in 304L & 316L
A358 welded pipe to ASTM Class 1 in grades 304L and 316L, for large-diameter pipework, from 8″ to 30″ in schedules 10S to Schedule 80. Held in stock in the UK and cut to the exact length you need.
Welded Pipe – ASTM A358 – Class 1 – Grades 304L & 316L - EU Origin
For larger-diameter requirements, our stainless steel pipe stock includes ASTM A358 Class 1 welded pipe in grades 304L and 316L.
We have the following sizes available:
- 8″ to 30″ SCH 10S 304L & 316L
- 8″ to 24″ SCH 40S 304L & 316L
- 8″ to 24″ SCH 80S 316L (10″ to 16″ in 304L)
- 10″ to 16″ FULL SCH 80 316L
Please see the chart below for more detailed information.
Sch = Wall Thickness in Millimeters
Although every effort has been made to give accurate information PipeXtra Stainless Ltd accepts no responsibility for any errors
A358 welded pipe for large-bore projects
Can’t see the size you need? Just get in touch. As well as our stock range, we can have A358 welded pipe bespoke manufactured to any size and wall thickness. Send us your requirements or call 01254 672999.
ASTM A358 covers electric-fusion-welded austenitic stainless steel pipe for corrosive and high-temperature service. Class 1 pipe is double-welded using filler metal and fully radiographed, which is why it is widely specified for larger-bore process and industrial pipework. Our A358 stock is of EU origin.
Large-bore pipe is expensive to buy in full lengths. We cut A358 welded pipe to your exact lengths, so you avoid paying for steel you will not use.
All of our stainless steel pipe stock is supplied with full certification and traceability. We deliver next day anywhere in the UK, with fast deliveries to mainland Europe. PipeXtra is a member of the British Stainless Steel Association.
Pair it with our matching A403 stainless steel end caps, use our free stainless steel calculators, or request a quote.
A358 welded pipe: your questions answered
What does Class 1 mean for A358 pipe?
Under ASTM A358, Class 1 pipe is double-welded using filler metal in all passes and is fully radiographed, giving a high level of weld quality assurance.
What sizes of A358 welded pipe do you stock?
8″ to 30″ in Schedule 10S, 8″ to 24″ in Schedule 40S, 8″ to 24″ Schedule 80S in 316L (10″ to 16″ in 304L), and 10″ to 16″ full Schedule 80 in 316L.
Can you cut large-bore pipe to length?
Yes. We cut A358 pipe to your exact lengths, which is often far cheaper than buying full lengths.
Is the pipe supplied with certificates?
Yes. All of our stainless steel pipe is supplied with full certification and traceability.
Need stainless pipe cut to length?
Send us your sizes and quantities and we’ll confirm price, availability and lead time.