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Resources/Materials & grades/1008

Materials & grades

1008 low-carbon steel: closest equivalents DC01, SWRM8 and IS 5C4

SAE 1008 is a very low-carbon steel with at most 0.10 % carbon, supplied as sheet, strip, wire and bar for deep drawing and cold forming. No European, British, Indian or Japanese grade matches it exactly: the nearest are DC01 for flat product, SWRM8 for wire rod and IS 5C4.

Names by standard

What it is called in each region

RegionSystemDesignationNormMatch
USAAISI/SAE1008SAE J403; ASTM A29 / A108Same material
UNSG10080—Same material
UKBS 1449-1 (superseded)CR4 / CS4Superseded British sheet names that Applus lists against DC01. Sheet only; BS 970 bar grades start at a higher carbon level.BS 1449-1Closest equivalent
EUEN 10027-1 nameDC01Cold-rolled flat steel for cold forming. Carbon ≤0.12 %, manganese ≤0.60 %. Applus lists it against ASTM A1008 CS Type A.EN 10130Closest equivalent
EN 10027-2 number1.0330Material number of DC01.EN 10130Closest equivalent
EN ISO 16120-2 nameC9D (1.0304)Low-carbon wire rod for drawing. Total Materia lists it as an implicit counterpart of SWRM8 and SAE 1008; limits not verified here.EN ISO 16120-2Closest equivalent
IndiaIS 15705C4Carbon ≤0.10 %, manganese ≤0.50 %. Old Indian name C05.IS 1570 (Part 2/Sec 1)Closest equivalent
IS 15707C4Carbon ≤0.12 %, manganese ≤0.50 %. Old Indian name C07.IS 1570 (Part 2/Sec 1)Closest equivalent
JapanJIS G 3505SWRM8Low-carbon steel wire rod. Carbon ≤0.10 %, manganese ≤0.60 %. Total Materia lists SAE 1008 as an implicit equivalent.JIS G 3505Closest equivalent

On equivalence

  • No national standard defines a grade identical to SAE 1008. Each local low-carbon grade is written for one product form, so match the product (sheet, wire rod or bar) before matching the name.
  • DC01 (1.0330) is a cold-rolled flat product under EN 10130 with carbon ≤0.12 % and manganese ≤0.60 %. It is not a bar grade.
  • SWRM8 (JIS G 3505) is wire rod with carbon ≤0.10 % and manganese ≤0.60 % (Total Materia). EN ISO 16120-2 C9D is its wire-rod counterpart in Europe.
  • IS 1570 5C4 is the nearest Indian schedule grade by carbon and manganese. IS 1570 sets only carbon and manganese, so silicon, phosphorus and sulphur come from the product standard.
  • ASTM A1008 is the specification for cold-rolled sheet and strip, not a statement that the steel is SAE 1008.
  • For bar, 1010 (C10E, S10C) is the nearest widely stocked grade.

Chemical composition

Composition limits, mass %

Element1008USA · SAE J403DC01 (1.0330)EU · EN 10130:20065C4India · IS 1570 (Part 2/Sec 1):19797C4India · IS 1570 (Part 2/Sec 1):1979SWRM8Japan · JIS G 3505
C≤0.10≤0.12≤0.10≤0.12≤0.10
Si—————
Mn0.30–0.50≤0.60≤0.50≤0.50≤0.60
P≤0.030≤0.045——≤0.040
S≤0.050≤0.045——≤0.040
B————≤0.0070

Mechanical properties

Strength and hardness

ConditionTensile strengthYield strengthElongationHardness
Hot rolled (1008)Estimated minimum, SAE J1397 basis. Sources differ on yield: ICAST gives 170 MPa (25 ksi), Summit Steel 165 MPa (24 ksi)SAE J1397 estimated minimum, as published by ICAST303 MPa44 ksi170 MPa25 ksi≥30 %86 HB
Cold drawn (1008)Estimated minimum, SAE J1397 basisSAE J1397 estimated minimum, as published by ICAST340 MPa49 ksi290 MPa42 ksi≥20 %95 HB
Cold rolled sheet (DC01)Specified range, EN 10130EN 10130:2006 as tabulated by Roymech270–410 MPa39–59 ksi140–280 MPa20–41 ksi≥28 %—
Hot rolled or normalized (7C4)Specified range, ruling sections up to 150 mmIS 1570 (Part 2/Sec 1):1979, Table 2320–400 MPa46–58 ksi—≥27 %—

In practice

Behaviour, heat treatment and uses

Characteristics

  • Carbon is capped at 0.10 % with 0.30–0.50 % manganese (SAE J403), which makes 1008 one of the softest and most formable plain-carbon grades.
  • SAE J1397 estimated minimums are 303 MPa tensile and 170 MPa yield hot rolled, and 340 MPa tensile and 290 MPa yield cold drawn.
  • The carbon level is too low to harden by quenching. Surface hardness needs carburizing.
  • Cold working is the main way to raise strength: cold drawing lifts the estimated yield from 170 to 290 MPa.
  • Low carbon and manganese give very good weldability and cold-forming behaviour.

Heat treatment

  • Not hardened by quenching at this carbon level.
  • Strength comes from cold work. Hot rolled 1008 has an estimated minimum tensile strength of 303 MPa (44 ksi); cold drawn has 340 MPa (49 ksi).
  • Finished parts that need a hard surface are carburized, then quenched.

Typische toepassingen

  • Deep-drawn and stamped sheet and strip parts
  • Rivets, nails and cold-headed parts made from wire rod
  • Wire and welded wire products
  • Low-load welded fabrications and tube

Carbon steels

Similar grades compared

KlasseC %Mn %Cr %Ni %Tensile, first listed condition
1008≤0.100.30–0.50——303 MPa
1010 / C10E0.08–0.130.30–0.60≤0.30—320 MPa
1015 / C15E0.13–0.180.30–0.60≤0.30—340 MPa
10180.15–0.200.60–0.90≤0.20—400 MPa
1020 / C22E0.18–0.230.30–0.60≤0.30≤0.40380 MPa
1025 / C25E0.22–0.280.30–0.60≤0.30≤0.40400 MPa
1030 / C300.28–0.340.60–0.90≤0.40≤0.40470 MPa
1035 / C350.32–0.380.60–0.90≤0.40≤0.40500 MPa
1040 / C40 / EN80.37–0.440.60–0.90≤0.40≤0.40524 MPa
1045 / C450.43–0.500.60–0.90≤0.40≤0.40565 MPa

Composition from the US standard where one exists, otherwise the first standard listed on each grade's page. Strength conditions differ between grades; open a grade for its full table.

Antwoorden op uw vragen

Common questions

What is the equivalent of SAE 1008?

There is no exact equivalent. DC01 (1.0330) is the nearest European flat product, SWRM8 the nearest Japanese wire rod and IS 5C4 the nearest Indian schedule grade. Check the product form before substituting.

Is ASTM A1008 the same as SAE 1008?

No. ASTM A1008 is a cold-rolled sheet and strip specification with grades such as CS and DS. SAE 1008 is a chemical composition for carbon steel in several product forms.

What is the difference between 1008 and 1010 steel?

1008 allows at most 0.10 % carbon and 0.30–0.50 % manganese. 1010 has 0.08–0.13 % carbon and 0.30–0.60 % manganese, and a slightly higher estimated hot-rolled strength (320 MPa against 303 MPa).

Is 1008 steel weldable?

Yes. Its very low carbon content gives excellent weldability with common processes and little risk of hardening in the weld zone.

From the Corona catalog

Products listed with 1008

Piketten & pennen

Piketten van betonstaal

Diameter: 5/8-1 inch / 16-25 mm · Lengte: 16-56 inch / 300-1400 mm

Technische gegevens
Bekisting & wapening

Bekistingspennen

Diameter: 5/8-1 inch / 16-25 mm · Lengte: 12-56 inch / 300-1400 mm

Technische gegevens
Staven & stangen

Geknipte staven / deuvelstaven

Diameter (rond): 1/4-1 inch / 6-25 mm · Maat (vierkant): 5/8, 3/4, 7/8 inch / 16, 18, 20 mm

Technische gegevens
Start uw aanvraag

Keep reading

1010 / C10E1010 is a low-carbon steel with about 0.10 % carbon, supplied as bar, wire and sheet for cold-formed, carburized and welded parts.1015 / C15E1015 is a low-carbon steel with about 0.15 % carbon, used for case-hardened pins and shafts, cold-formed parts and welded work.10181018 is a low-carbon, non-alloy steel with 0.15–0.20 % carbon and 0.60–0.90 % manganese, widely used as cold-drawn bar for machined and case-hardened parts.AnnealingAnnealing heats steel to a set temperature, holds it and cools it slowly to make it softer, more ductile and easier to machine or cold form.SAE / AISI numbersA four-digit SAE/AISI number such as 1045 or 4140 names a carbon or alloy steel by its chemistry: the first two digits identify the steel family and the last two give the nominal carbon content in hundredths of a percent.EN 10027 names and numbersEuropean steels carry two identifiers under EN 10027: a steel name (Part 1) such as S235JR, C45 or 42CrMo4 that describes the steel's use or chemistry, and a material number (Part 2) such as 1.0503 or 1.7225.BS 970 and the EN seriesBS 970 names steels with a six-character code such as 080M40, in which the first three digits give the steel type, the letter says how the steel is specified and the last two digits give the carbon content.IS 1570 and Indian designationsIndian steel names follow the letter-symbol code in IS 1762 (Part 1), which the IS 1570 schedules use: 45C8 means about 0.45% carbon, C for carbon steel and about 0.8% manganese, while alloy names such as 40Cr4Mo3 list each element with a multiplied content figure.JIS steel designationsJapanese JIS steel symbols start with S for steel and add letters for the steel family or its use, but the number means different things in different standards.

References

Sources

  1. ICAST: SAE J403 / SAE J1397 UNS G10080, Hot Rolled — SAE J403 composition and J1397 estimated minimum properties for 1008.
  2. ICAST: SAE J403 / SAE J1397 UNS G10080, Cold Drawn
  3. IS 1570 (Part 2/Sec 1):1979 Schedules for wrought steels: carbon steels (public copy) — Table 1 carbon and manganese limits and Table 2 hot-rolled or normalized tensile limits.
  4. Roymech: BS EN 10130 cold-rolled low-carbon flat steel (DC01) — DC01 composition and tensile properties.
  5. Applus+ Laboratories: DC01 / 1.0330 datasheet — Cross-reference to BS 1449-1 CR4 / CS4 and ASTM A1008 CS Type A.
  6. Total Materia: JIS SWRM 8 (JIS G 3505) — C, Mn and B limits; implicit equivalents SAE 1008 and EN ISO C9D.
  7. Kobelco: Wire rods and bars specification tables (JIS G 3505, JIS G 4051) — SWRM8 limits: carbon ≤0.10 %, manganese ≤0.60 %, phosphorus ≤0.040 %, sulphur ≤0.040 % (JIS G 3505, 2004 revision).
  8. Summit Steel: carbon steel estimated minimum mechanical properties — Hot-rolled and cold-drawn estimated minimums for 1008 to 1025; agrees with the SAE J1397 tensile values here; a few yield, elongation and hardness figures differ by rounding or typing.

Values summarize published limits and typical data. The governing standard and the current edition control; check them before specifying.