Designation Cross-Reference

LT20 — ASTM Equivalent

Holding a datasheet that specifies LT20 (BS)? The valve-grade equivalent, its properties, and certified supply of the matching ASTM grade.

What is the ASTM equivalent of LT20?

LT20 is a BS designation corresponding to ASTM A352 Grade LCC (Low Temperature Carbon Steel LCC) for industrial valve service. The full grade data is below - equivalence is by nominal chemistry and mechanical class, so confirm composition and heat-treat condition against the governing standard before substituting in critical service.

A352 Grade LCC

Carbon Steel

Low Temperature Carbon Steel LCC - cast form.

Service temperature-46°C to +345°C

Nominal compositionC ≤ 0.25%, Mn 0.50–1.20%, Si ≤ 0.60%, P ≤ 0.030%, S ≤ 0.030%. Impact tested at −46°C.

Typical service: LNG terminals and LNG storage tank valves; LPG and propane storage and transfer; Ethylene and propylene plants

Also designated:GP240GH [EN]1.0619 (approx) [EN]LT20 (approx) [BS]

Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

Materials

A216 WCB Carbon Steel A352 LCC Low-Temp

Need valves in LT20 / its ASTM equivalent?

We supply A352 Grade LCC valves - the LT20 equivalent - with EN 10204 3.1 material certification. Share the datasheet for a 24-hour quote.

Request a Quote WhatsApp Call

Products

Browse All Valve Products

Engineering references

A352 Grade LCC full grade pageLow Temperature Carbon Steel LCC Equivalence MatrixAll 43 grades across 7 systems Designation lookup directoryEvery foreign designation indexed