Journal profile · THERMODYNAMICS-MECHANICS

High Temperatures-High Pressures

ISSN 0018-1544 · eISSN 1472-3441 · Old City Publishing · UNITED STATES

High Temperatures-High Pressures: CAS Zone 4 · Engineering (2025 upgraded edition); impact factor 0.47; fully open access; 29 articles in 2025; indexed in SCIE and Scopus.

Impact factor0.47Latest value listed by LetPub
CAS zoneZone 4 · Engineering2025 upgraded edition, major category · 2026 Xinrui edition Zone 4 · Engineering
Review time—No reports yet
APC—No source gives fee information
Acceptance—No reports yet
Articles per year292025 · OpenAlex count

Scope

Aims, scope and focus

High Temperatures-High Pressures is published by Old City Publishing and is in Zone 4 of Engineering in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Phase Equilibria and Thermodynamics, Thermography and Photoacoustic Techniques and Chemical Thermodynamics and Molecular Structure, together about 25.9% of its articles. (generated from OpenAlex topic counts and CAS ranking data)

PUBLISHER • SERVICE PROVIDER Founded in 1995 by Dr. Ian Mellanby and Guy Griffiths, Old City Publishing, Inc. is dedicated to providing the international community with the latest research and developments in the sciences, technology, medicine, and the humanities. OCP Science, an imprint of Old City Publishing, emphasizes quality, speed and specialization. These capabilities are aiding expansion into many new areas of the life, physical and social sciences as well as technology. Northern Liberties Press is the trade book imprint of Old City Publishing. Old City Publishing Services In addition to being an independent publisher of journals and books, Old City Publishing operates as a service provider and facilitator for Universities, Scientific Institutes, Societies, and other publishing companies wishing to obtain the highest standards of the professional publishing industry while maintaining full control of their publishing programs and program finances. We offer very competitive rates for the following publishing services: Publications management, including print and on-line distribution for journals, magazines, newsletters and books Management and publication of conference proceedings, abstract booklets and programs with short lead times Editorial support Copy-editing and proofreading Marketing Subscriptions management Advertising sales Advertisement design Catalogs Posters Brochures Illustration Photo editing Print coordination Distribution Rights and permissions For more information on how we may meet your particular needs, please email us or call +1 215.925.4390. Share on X Share on Facebook Share on LinkedIn

From the journal's Aims & Scope

Research area (LetPub): THERMODYNAMICS-MECHANICS

Editor-in-chief Ivan EgryPublisher website

Editorial board by country: 2 in mainland China (about 7%); most named France 4, Brazil 3, Mainland China 2, United States 2, United Kingdom 2 (28 members with a country) Editorial board ↗Publisher website ·

Main research topics OpenAlex counts of recent articles; shares are approximate

  1. Phase Equilibria and ThermodynamicsEngineering9.7%
  2. Thermography and Photoacoustic TechniquesEngineering8.4%
  3. Chemical Thermodynamics and Molecular StructureChemistry7.9%
  4. Thermodynamic and Structural Properties of Metals and AlloysEngineering5.9%
  5. nanoparticles nucleation surface interactionsEarth and Planetary Sciences5.5%
  6. High-pressure geophysics and materialsEarth and Planetary Sciences4.9%
  7. Thermal properties of materialsMaterials Science4.7%
  8. Radiative Heat Transfer StudiesEngineering4.7%

Rankings & indexing

CAS ranking and database indexing

CAS Journal Ranking

CAS Journal Ranking, upgraded edition (March 2025)Engineering Zone 4
LevelCategoryZone
MajorEngineeringZone 4
MinorMaterials Science, Characterization & TestingZone 4
MinorMechanicsZone 4
MinorThermodynamicsZone 4

Top journal: noReview journal: no

CAS Xinrui Journal Ranking (March 2026)Engineering Zone 4
LevelCategoryZone
MajorEngineeringZone 4
MinorThermodynamicsZone 4
MinorMechanicsZone 4
MinorMaterials Science, Characterization & TestingZone 4

Top journal: noReview journal: not marked

CAS Journal Ranking, previous upgraded edition (December 2023)Engineering Zone 4
LevelCategoryZone
MajorEngineeringZone 4
MinorMaterials Science, Characterization & TestingZone 4
MinorMechanicsZone 4
MinorThermodynamicsZone 4

Top journal: noReview journal: no

Database indexing

SCIEScopusLetPub

International journal early-warning lists: not listed in any editionLetPub

Indexing the journal's website claims

Web of ScienceCurrent ContentsPublisher website

Other: Research Alert, Science Citation Expanded (sciSearch), Journal Citation Reports/Science Edition

As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.

Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.

Metrics

Impact metrics and publication volume

Impact

Impact factor
0.47LetPub ·
CiteScore 2026-06
1LetPub ·
CiteScore (publisher)
0.8Publisher website ·
SJR 2026-06
0.19LetPub ·
SNIP 2026-06
0.4LetPub ·
SNIP (publisher)
0.36Publisher website ·
h-index
26LetPub ·
h-index
37OpenAlex ·
i10-index
228OpenAlex ·
2-year mean citedness
0.43OpenAlex ·
Self-citation rate
20%LetPub ·
Share of gold OA articles
100%LetPub ·

Volume

Articles per year
29LetPub ·

Articles by year OpenAlex count · 1,110 in total · the current year is incomplete

YearArticlesOpen accessCitations
202627271
2025292911
2024232322
2023363663
2022272757
2021363648

Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.

Fees & open access

APC and open-access policy

Fully open accessOpenAlex

Every article is open access; authors usually pay an article processing charge (APC).

No source has fee information yet; check the journal's website.

The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.

Submission

Article types and submission policies (journal website)

Policy excerpts from the journal's websitePeer review
Peer review

Forthcoming papers are peer-reviewed and accepted for publication but not yet assigned to an issue; publication requires issue assignment and final proof approval by the author(s). Model summary

Click here for a list of papers that have been peer-reviewed and accepted for publication in HTHP but have not yet been assigned to an issue and are awaiting final changes. A forthcoming paper is not published until it has been assigned to an issue and the final proof has been approved by its author or authors.

Source ↗Publisher website ·

Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.

Profile

Publication details and official links

Publisher
Old City Publishing
Country or region
UNITED STATES
Language
English
ISSN
0018-1544
Electronic ISSN
1472-3441
Official links

FAQ

Frequently asked questions about High Temperatures-High Pressures

What CAS zone is High Temperatures-High Pressures in?

In the 2025 upgraded edition of the CAS Journal Ranking, High Temperatures-High Pressures is in Zone 4 of Engineering, and in Zone 4 of the minor category Materials Science, Characterization & Testing / Mechanics / Thermodynamics. In the 2026 Xinrui edition it is in Zone 4 of Engineering. Zones from different editions, and from major and minor categories, are not interchangeable.

What is the impact factor of High Temperatures-High Pressures?

The latest impact factor listed by LetPub is 0.47; CiteScore 1, h-index 37.

Where are the editorial board members of High Temperatures-High Pressures based?

Of the 28 board members whose country the journal's board page names, 2 (about 7%) are in mainland China; the countries named most often are France (4), Brazil (3) and Mainland China (2). Counted from the institutions listed on the board page; for reference only.

Which databases index High Temperatures-High Pressures?

According to LetPub and DOAJ records, High Temperatures-High Pressures is indexed in SCIE and Scopus. The journal's website also lists Web of Science and Current Contents; that list has not been checked against each database.

Is High Temperatures-High Pressures open access, and what is the APC?

High Temperatures-High Pressures is a fully open-access journal. Fee information is not available yet; check the journal's website.

Sources and updates

The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .