Mild Steel SAE1018 1020/S20c Ss400/S235jr A36 Cold Drawn Round Bar

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB
• Composition: Ferrous Steel Scrap
• Technique: Cold Drawn
• Shape: Bar
• Surface Treatment: Polished
• Model NO.: cold drawn steel bar
• Special Use: Free Cutting Steel
• Application: Structural Steel Bar
• Raw Material: Mild Steel Bar
• Main Grade: SAE1018 1020/S20c Ss400/S235jr A36
• Surface: Cold Drawn Steel Bar
• Shapes: Round Bar
• Carbon Steel: Polished Steel Bar
• Transport Package: Anti-Rust Packaging
• Specification: dia: 5mm-100mm
• Trademark: dajin
• Origin: China
• Production Capacity: 3000

Product Description

Product Name:
Mild steel SAE1018 1020/S20C SS400/S235JR A36 Cold drawn  round bar bright mild steel round bar manufacturer

Mild steel is a low carbon steel with a medium manganese content. Has good case hardening properties, fair machinability and is excellent for cold bending and forming operations. Readily welded and brazed.

1.Mild steel round bar grade

SAE1018 1020/S20C SS400/S235J  A36  bright  surface steel bar



2.Chemical composition of mild steel Cold drawn round bar

	Steel grades	C	Si	Mn	Cr	Mo	Ni	P	S	V	w
Carbon Structure Steel	Q235(B)/SS400/S235JR/A36	≤ 0.20	≤0.35	≤1.4	0.3-0.4		≤0.30	≤ 0.045	≤ 0.045
	20#/CK22, CK20/1020/ 050A20/S20C	0.17-0.23	0.17-0.37	0.35-0.65	0.3-0.4		≤0.30	≤ 0.035	≤ 0.035
	45#/CK45, C45/1045/ 080M46/S45C	0.42-0.5	0.17-0..37	0.5-0.8	0.3-0.4		≤0.30	≤ 0.035	≤ 0.035
Alloy Structure Steel	20Cr/20Cr4/5120/ 527A19/SCr420H	0.18-0.24	0.17-0.37	0.50-0.80	0.70-1.00	≤0.15	≤0.30	≤ 0.035	≤ 0.035
	40Cr/41Cr4/5140/ 520M40/SCr440	0.37-0.44	0.17-0.37	0.5-0.8	0.8-1.1	≤0.15	≤0.30	≤ 0.035	≤ 0.035
	30CrMo/4130/ 1717COS110/SCM420	0.26-0.34	0.17-0.37	0.4-0.7	0.8-1.1	0.15-0.25	≤0.30	≤ 0.035	≤ 0.035
	35CrMo/34CrMo4/ 4135/708A37	0.32-0.40	0.17-0.37	0.4-0.7	0.8-1.1	0.15-0.25	≤0.30	≤ 0.035	≤ 0.035
	42CrMo/42CrMo4/4140/ 708A42/708M40	0.38-0.45	0.17-0.37	0.5-0.8	0.90-1.2	0.15-0.25	≤0.30	≤ 0.035	≤ 0.035
	8620H	0.17-0.23	0.15-0.35	0.65-0.95	0.35-0.65	0.15-0.25	0.35-0.75	≤0.025	≤ 0.035
	40CrNiMoA/40CrNiMo22/ 4340/871M40/SNCM439	0.37-0.44	0.17-0.37	0.50-0.80	0.60-0.90	0.15-0.25	1.25-1.65	≤ 0.025	≤ 0.025
Spring Steel	55Si2Mn/55Si7/9255/ 250A53/SUP6	0.52-0.60	1.50-2.00	0.60-0.90	≤0.35		≤0.35	≤ 0.035	≤ 0.035
	60Si2MnA/65Si7/9260/ 250A61/SUP7	0.56-0.64	1.60-2.00	0.70-1.00	0.3-0.4		≤0.35	≤ 0.025	≤ 0.025
	50CrVA/50CrVA/6150/ 735A50/SUP10	0.47-0.54	0.17-0.37	0.50-0.80	0.80-1.10	≤0.15	≤0.30	≤ 0.025	≤ 0.025
	GCr15/100Cr6/E52100/ 534A99/SUJ2	0.95-1.05	0.15-0.35	0.25-0.45	1.40-1.65	≤0.10	≤0.30	≤ 0.025	≤ 0.025
Bearing  Steel	52100	0.93-1.05	0.15-0.35	0.25-0.45	1.35-1.60	≤0.10	≤0.25	≤ 0.025	≤ 0.015

3.Typical Mechanical Properties of mild steel(SAE1018) - Cold Drawn and Turned and Polished Condition
 

Tensile Strength,Mpa	Min 440
Yiled Strength,Mpa	Min 372
Elongation(%)	15
Reduction of Area(%)	40
Brinell Hardness	126

cold drawn steel bar main type and avaliable sizes
 

Round bars	5mm-130mm
Suqare bar	6*6mm-100*100mm
Flat bars	3mm*20mm-50mm*100mm
Hex bars	6mm-100mm
Bar Finsihe	Peeled, Cold Drawn, TurnedTurned & Polished, Centreless Ground

Our cold drawn factory equipments



We adopt advanced production technology and first-class processing equipments, such as heat treatment furnace, straightening machine, centerless grinding machine, polishing machine, as well as lathing and milling machine etc.
Our steel bar mill's certificates


ISO901&ISO.TS16949,ISO4001,OHSAS18001
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel,ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;JIS MARK,KS MARK.










We do Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test,so we can guarantee the cold drawn steel bar quality.
Our tolerance of cold drawn steel rod can be -0.01mm/+0mm,the straigthness can be 0.02mm/m.Always keep larget cold drawn steel rod stock,the average shipment time 15days,free sample always avaliable.





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