C-CH35ACR

2 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.

Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.

Open condition selection, comparison and carbon-equivalent tools for C-CH35ACR →

C-CH35ACR · Q/ZNGF 01.7—2023

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category: Cold-heading steel
Subcategory: Cold-heading steel
Material form: Wire rod
Original record status: Manufacturer source verified
Document edition: 2023 Edition; Published 2023-09-21, implemented 2023-10-01; Supersedes Q/SG18—2022
Document title: Steel wire rod for cold heading and cold extrusion
Table / clause: Table 1
PDF page references: 5
Unit: Mass fraction (wt%)
Manufacturer: Guangdong Zhongnan Iron & Steel Co., Ltd.

Carbon-equivalent reference

Estimate from manufacturer-published ranges, not a standard guarantee or measured heat result; formula applicability requires review against the application and process.

IIW / CEV：0.5100–0.6667Known-element contribution; incomplete value; missing Mo, V CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.

Pcm（Ito–Bessyo）：0.3950–0.4767Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

CET：0.4250–0.5200Known-element contribution; incomplete value; missing Mo CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

Element	Composition requirement
C	0.35 ～ 0.39
Si	≤ 0.1 (lower limit not stated)
Mn	0.6 ～ 0.9
P	≤ 0.025 (lower limit not stated)
S	≤ 0.025 (lower limit not stated)
Al	≥ 0.015 (upper limit not stated)
Cr	0.3 ～ 0.5
Ni	≤ 0.2 (lower limit not stated)
Cu	≤ 0.2 (lower limit not stated)

Applicability and limitations

Zhongnan Steel Q/ZNGF 01.7—2023, Table 1, row 36 (PDF page 5), cast analysis wt%; footnotes, delivery process and orders must be confirmed against the corresponding edition. This does not constitute a supply commitment by Creation Group.

Composition conditions

Table 1 heat analysis, mass fractions wt%; A dash means no limit is listed, not zero.
Clause 6.1.4 residual impurities Cr, Ni and Cu are each ≤0.20%; Where Cr is intentionally added, the corresponding row limits apply instead of residual maxima.
Wire rod is delivered in the hot-rolled condition; The ordinary cold-upsetting level is 1/2; high and relatively high levels must be specified in the contract.

Verification notes

2023 edition: all 69 rows of Table 1 and notes a/b/c checked line by line; process suffixes -1/-2/-3 distinguished from footnote letters.

C-CH35ACR · CHINA STEEL CORPORATION · Bars and Wire Rods Product Catalogue 2014-C1 / 7.1.1 Steels for cold heading / cold forging

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category: Cold-heading steel
Subcategory: Cold-heading steel
Material form: Bars and wire rod
Original record status: Manufacturer source verified
Document edition: CAT.NO.3-BD-01-2014-C1 (stated on the back cover)
Document title: Bars and Wire Rods Product Catalogue
Table / clause: 7.1.1 Steels for cold heading / cold forging
PDF page references: 13
Unit: Mass fraction (%)
Analysis type: The original catalogue does not explicitly identify the analysis type for this table
Manufacturer: CHINA STEEL CORPORATION

Carbon-equivalent reference

Estimate from manufacturer-published ranges, not a standard guarantee or measured heat result; formula applicability requires review against the application and process.

IIW / CEV：0.5100–0.6400Known-element contribution; incomplete value; missing Mo, V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.

Pcm（Ito–Bessyo）：0.3950–0.4633Known-element contribution; incomplete value; missing Cu, Ni, Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

CET：0.4250–0.5050Known-element contribution; incomplete value; missing Mo, Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

Element	Composition requirement
C	0.35 ～ 0.39
Si	≤ 0.1 (lower limit not stated)
Mn	0.6 ～ 0.9
P	≤ 0.025 (lower limit not stated)
S	≤ 0.025 (lower limit not stated)
Cr	0.3 ～ 0.5
Al	≥ 0.01 (upper limit not stated)

Applicability and limitations

China Steel bar and wire-rod catalogue CAT.NO.3-BD-01-2014-C1, PDF page 13

printed page 11, 7.1.1 China Steel steels for cold heading

cold forging. The original catalogue does not explicitly identify the analysis type for this table. Historical manufacturer range data, not guaranteed standard limits or heat-specific measurements; this does not establish supply by Creation Group.

Composition conditions

Historical manufacturer 2014-C1 catalogue, bars/wire rod; Where the referenced standard edition is not identified, a year is not borrowed from another catalogue; a catalogue is not upgraded to the official standard text.
A dash or blank must not be treated as zero. Composition data do not establish completeness or applicability of a formula; mechanical properties and supply require separate verification.

Verification notes

Merged cells in all 28 catalogue tables were reconstructed geometrically, with no missing cells. Original images, continuation pages and notes are recorded; disputed conditions are withheld.