Why 13Cr exists in this catalogue
L80-13Cr is a martensitic stainless steel — the representative oil country grade for wet CO2 service in the published material, and a grade listed in API Spec 5CT. At a chromium content of around 12 percent its corrosion resistance is good, and L80-13Cr is the grade this factory's dedicated 13Cr series is built around. The company's catalogue treats 13Cr as a series in its own right, with six entries: 13Cr corrosion-resistant plain pipe including a 9-5/8 in casing entry, finished L80-13Cr 5-1/2 in casing, an L80-13Cr 177.8 by 10.36 mm casing specification (7 in), 7 in L80-13Cr plain-end pipe, corrosion-resistant L80-13Cr 5-1/2 in oil casing, and an L80-13Cr entry covering casing with 13Cr anti-CO2 tubing held in stock.
The company's 13Cr product page describes the material accurately: L80-13Cr is a martensitic stainless steel, a representative oil country product for wet CO2 environments, and listed within API Spec 5CT. The same page carries the honest caution that belongs in any 13Cr discussion: in chloride environments the material carries pitting and crevice corrosion risk. Whether 13Cr is the answer for a string is the design's decision, made against the produced-fluid analysis the design states. Send the fluid data with the enquiry.
Published 13Cr sizes
| Product | Published sizes |
|---|---|
| L80-13Cr tubing | 2-3/8 in, 2-7/8 in, 3-1/2 in, 4-1/2 in |
| L80-13Cr casing | 5-1/2 in, 6-5/8 in, 7 in, 7-5/8 in |
| Named casing entries | 9-5/8 in 13Cr corrosion-resistant casing; 7 in at 177.8 x 10.36 mm |
| Related grades listed | L80-3Cr, 9Cr, P110-13Cr (super 13Cr), 28Cr in the grade list |
The wider grade list around the series matters for programme design: L80-3Cr, 9Cr, P110-13Cr (super 13Cr) and 28Cr also appear in the company's published grade list. No service data is published for those designations on this site, so no duty is assigned to them here; the design names the designation per interval. A programme may combine 13Cr across one interval with carbon grades elsewhere, and it is quoted line by line like any other multi-grade order. State the coupling line for a 13Cr string in the enquiry with the pipe line, and ask for the two lines to be confirmed together in writing — including where premium-thread couplings are required — rather than assumed from the carbon-steel coupling list.
Ordering 13Cr: what to send
Beyond the standard five RFQ fields — size, weight or wall, grade, thread, quantity — a 13Cr enquiry should include the service summary: CO2 and H2S presence, chloride level, temperature, and whether the string is casing or tubing and which interval it covers. Ask, with that information in the enquiry, for the specified material for the line to be confirmed in the quotation. Lead time and MOQ for 13Cr are confirmed per specification in the written quotation for the order.
13Cr casing or 13Cr tubing — which do I need?
Both exist in the series. Casing sizes centre on 5-1/2 in to 7-5/8 in plus a 9-5/8 in entry; tubing sizes run 2-3/8 in to 4-1/2 in. Both forms are specified by the design against the interval each covers; send the interval data with the enquiry so the form is confirmed, not assumed.
Does 13Cr handle H2S?
13Cr selection is driven mainly by CO2 and chlorides; H2S changes the material conversation and may point to a different grade family. Declare any H2S in the enquiry so the material is confirmed, not assumed.
Can 13Cr be combined with premium connections?
Premium processing is a listed family, and the catalogue does not record it against the 13Cr series specifically. Name the pattern with the size and grade in one RFQ line; the quotation confirms whether that pattern is processed on a 13Cr string.
Request a Quotation
Send your size, grade, thread and quantity. MOQ, packing and lead time are confirmed in the quotation for your exact specification — no generic promise replaces a written quote.