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LH80

1 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 LH80 →

LH80 · AGT2282, January 2013 (Acument procurement specification)

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

Material category
Carbon steel
Subcategory
Carbon steel
Material form
Wire rod and bars
Original record status
Manufacturer source verified
Document edition
January 2013
Document title
AGT2282 Carbon & Alloy Steel Specification
Table / clause
6.1
PDF page references
5、6
Unit
Mass fraction (wt%)
Analysis type
Heat analysis
Manufacturer
Acument Global Technologies (AGT)

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:0.5300–0.6400Known-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):0.3950–0.4600Known-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:0.4500–0.5250Known-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

ElementComposition requirement
C0.33 ~ 0.37
Mn1.2 ~ 1.5
P≤ 0.03 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si0.15 ~ 0.3
Al≤ 0.06 (lower limit not stated)
Cr≤ 0.1 (lower limit not stated)

Applicability and limitations

Historical procurement specification Acument AGT2282 January 2013, PDF page 6, Table 6.1; Heat composition wt%, condition SKFG. References for additional requirements outside the table and total residual content remain unresolved; displayed for reference only and excluded from limit-based reverse matching; Not guaranteed standard limits or heat-specific measurements.

Composition conditions

Conditional requirement

Processing and delivery conditions

SKFG

Special requirements

Additional source notes
LH80*
Source conditions
outside of the table above shall reference SAE J403 unless otherwise agreed upon by AGT and our customer. Note 1 - 0.10% maximum if AK; 0.15% to 0.30% if SK. LH80* requires UTS: 755-833 N/mm, RA: 55%, Hardness: HRB 95 (ref. HRC 16) to HRC 25
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