SS490
8 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 SS490 →SS490 · JIS G 3101-2024
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
- Hot-rolled structural steel
- Original record status
- Original standard verified
- Standard edition
- JIS G 3101:2024
- Table / clause
- Clause 5, Table 2 and table note a; Clause 1 and Clause 4, Table 1
- PDF page references
- 5、6
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| P | ≤ 0.05 (lower limit not stated) |
| S | ≤ 0.05 (lower limit not stated) |
Applicability and limitations
Clause 5, Table 2 gives heat-analysis mass percentages; Table note a permits addition as needed of elements marked “—” and unlisted alloying elements; An unspecified limit does not mean zero content. Clause 1 covers hot-rolled steel products and hot-extruded sections for general structures; cold-heading wire suitability is not established. Table 1: plate, strip, sections and bars; Flat-steel thickness ≤100 mm.
Verification notes
JIS G3101:2024, Table 2 and table note a have been checkedSS490 · Q/BQB 130-2003
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
- Reference record
- Original record status
- Original standard verified
- Standard edition
- Q/BQB 130—2003
- Table / clause
- 4.1.1, Table 3 and notes 1–3
- PDF page references
- 2、4
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
G deoxidation method; applicable finished plate thickness ≤6 mm
G deoxidation method; applicable finished plate thickness >6–12.7 mm
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | 0.13 ～ 0.22 |
| Si | ≤ 0.25 (lower limit not stated) |
| Mn | 0.5 ～ 1.0 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
Applicability and limitations
Q/BQB 130—2003 is a standard for slabs produced by initial rolling for subsequent rerolling. The finished plate thickness in Table 3 means the plate thickness after rerolling the slab, not slab thickness or wire diameter. Table 3 gives ladle analysis in mass fraction wt%; C = capped steel, A = aluminium-killed steel, G = aluminium-silicon-killed steel, K = silicon-killed steel. Read the applicable condition row; unlisted elements are not assumed to be zero. Note 3 to Table 3 requires slabs for thick plate (finished thickness ≥15 mm) to use G aluminium-silicon-killed steel; buyer and supplier must verify applicability of rows involving other deoxidation methods. Product-analysis tolerances for killed steel are separately governed by GB/T 222 and must not be mixed with Table 3 ladle-analysis values.
Original condition-branch records
G deoxidation method; applicable finished plate thickness ≤6 mm
| Element | Composition requirement |
|---|---|
| C | 0.13 ～ 0.22 |
| Si | ≤ 0.25 (lower limit not stated) |
| Mn | 0.5 ～ 1.0 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
- Combined limits
- PDF page references in the source
- 2
- Source table row number
- 13
G deoxidation method; applicable finished plate thickness >6–12.7 mm
| Element | Composition requirement |
|---|---|
| C | 0.12 ～ 0.21 |
| Si | ≤ 0.25 (lower limit not stated) |
| Mn | 0.9 ～ 1.4 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
- Combined limits
- PDF page references in the source
- 2
- Source table row number
- 14
A condition branch must be selected
YesVerification notes
Baosteel original Table 3, merged cells and notes checked row by row; select conditions by deoxidation method and finished-product thickness.SS490 · JIS G 3101-2010
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Carbon steel
- Material form
- Hot-rolled steel for general structures
- Original record status
- Original standard verified
- Standard edition
- JIS G 3101:2010
- Table / clause
- Main-text Clause 3/4, Tables 1 and 2
- PDF page references
- 5、6
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| P | ≤ 0.05 (lower limit not stated) |
| S | ≤ 0.05 (lower limit not stated) |
Applicability and limitations
The original Japanese JIS G 3101:2010, main-text Clause 3, Table 1 lists SS490; applicable forms are plate, strip, sections, flat bars and bars. ; No additional maximum is specified in the applicable-size column of Table 1; Structural-steel product forms do not automatically establish suitability or supply as cold-heading wire. ; Main-text Clause 4, Table 2 gives heat-analysis mass fractions wt%; Only the elements already recorded for this entry are listed; the unspecified dash for C/Mn does not mean 0. ; Yield strength, tensile strength, elongation and bending in main-text Clause 5, Table 3 vary with thickness, specimen and form; no general guarantee is displayed before those conditions are structured. ; Historical 2010 is displayed separately; the 2011/2015 reference record and original 2024 record must not automatically be treated as the same edition.
Verification notes
All four rows and merged cells in the original Japanese 2010, main-text Tables 1 / 2 were visually checkedSS490 · CHINA STEEL CORPORATION · Bars and Wire Rods Product Catalogue 2014-C1 / 7.1.23 JIS G3101 (Edition unspecified)
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
- 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
- 7.1.23 JIS G3101 (Edition unspecified)
- PDF page references
- 28
- 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.
Composition
| Element | Composition requirement |
|---|---|
| P | ≤ 0.05 (lower limit not stated) |
| S | ≤ 0.05 (lower limit not stated) |
Applicability and limitations
China Steel bar and wire-rod catalogue CAT.NO.3-BD-01-2014-C1, PDF page 28
printed page 26, 7.1.23 JIS G3101 (edition not stated). 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. Condition: mechanical properties in this table vary with diameter and specimen; Only composition is recorded in this batch; mechanical-property conditions are not flattened.
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.
- Mechanical properties in this table vary with diameter and test specimen; this batch records composition only and does not flatten the mechanical conditions.
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.SS490 · JIS G 3101-2011
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Carbon steel
- Subcategory
- Carbon steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| P | ≤ 0.05 (lower limit not stated) |
| S | ≤ 0.05 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.
SS490 · JIS G 3101-2015
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Carbon steel
- Subcategory
- Carbon steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| P | ≤ 0.05 (lower limit not stated) |
| S | ≤ 0.05 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.
SS490 · Q/ASB 271-2017
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Carbon steel
- Subcategory
- Carbon steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.24 (lower limit not stated) |
| Cr | ≤ 0.3 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
| Mn | ≤ 1.6 (lower limit not stated) |
| N | ≤ 0.008 (lower limit not stated) |
| Ni | ≤ 0.2 (lower limit not stated) |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Si | ≤ 0.35 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.
SS490 · Q/BQB 303-2018
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Carbon steel
- Subcategory
- Carbon steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.22 (lower limit not stated) |
| Mn | ≤ 1.4 (lower limit not stated) |
| P | ≤ 0.025 (lower limit not stated) |
| S | ≤ 0.025 (lower limit not stated) |
| Si | ≤ 0.25 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.