ASTM1215 JIS SUM23 Cold Drawn Round Free Cutting Carbon Steel Bar
Introduction of ASTM1215 free steel steel:1215 free-cutting steel is the addition of sulfur to the steel to make it easy to cut. It is suitable for cutting hot-rolled and cold-drawn steel bars and steel wires for the production of automatic goods. This type of steel can be cut with a higher cutting speed and a larger depth of cut. Due to the free-cutting elements added to the steel, the cutting resistance of the steel is reduced. At the same time, the characteristics of the free-cutting elements and the compounds formed play the role of lubricating cutting tools, easy to break chips, reduce wear, and reduce the surface of the workpiece. Roughness improves tool life and production efficiency.ASTM1215 Cold drawn carbon steel chemical composition:Type of steel:Sulfur free cutting steel | Standard No.:ASTM1215 JIS SUM23 |
chemical composition |
C | Si | Mn | P | S | Pb | Cu | Ni | Cr |
≤0.09 | Agreement | 0.75-1.05 | 0.04-0.09 | 0.26-0.35 | - | - | - | - |
ASTM1215 free cutting steel Mechanical PropertiesThe tensile strength σb (MPa):
(hot rolled) 390~540;
(cold drawn)
thickness or diameter
8~20: 530~755;
>20~30: 510~735;
>30: 490~685,
Elongation rate δ5 (%):(Hot rolled) ≥22;
(Cold rolled)≥7.0,
Area shrinkage rate ψ (%):(Hot rolled) ≥36
Common application
1215 free-cutting steel products are widely used in:
Mainly used for automatic cutting machine tools to process fasteners and standard parts, such as studs, screws, nuts, pipe joints, spring seats, etc.
a. Mechanical equipment: woodworking machinery, ceramic machinery, paper machinery, glass machinery, food machinery, construction machinery, plastic machinery, textile machinery, jacks, hydraulic presses, etc.;
b. Electrical product components: motor shaft, fan shaft, sewing machine shaft, etc.;
c. Furniture: especially exported metal furniture, such as coffee tables, chairs, outdoor furniture;
d. Metal appliances: garden tools, grill grids, screwdrivers, anti-theft locks, etc.;
e. Small hardware parts: such as guide rails, machine keys, nuts, screws, round nails, hexagonal nails, octagonal nails and various standard parts of different specifications, etc.;
f. Automobile, motorcycle spare parts, etc.
Free cutting cold drawn steel types, shapes and sizes we can offer:besides the below shapes and sizes,we can also manufacture it based on customer's requests and customize different shapes and sizes.Shapes | Sizes | Processing |
Steel Round Bar | 5mm to 63.5mm | Cold Drawn |
Steel flat Bar | 63.5mm-120mm | smooth-turned and polished. |
Cold drawn steel square bar | 5*5mm to120*120mm | Cold Drawn |
Cold drawn steel hex bar | 5mm to120mm | Cold Drawn |
Cold drawn steel hexagonal bar | 5mm to 120mm (side to side) | Cold Drawn |
Straightness | Max 1mm/m |
Tolerance | h9 h10 h11 or as required |
Type of steel | GB | ASTM(SAE) | JIS |
Carbon steel Low alloy steel | Q195,Q215, Q235,Q345 | A285MGr.B A570MGr.A | SS330 SS400,SS490... |
Quality carbon steel | 10,20,35,40,60 20Mn,25Mn, 35Mn,40Mn | 1010,1020,1035, 1045,1060,1022, 1026,1037,1039 | S10C,S20C, S35C,S45C... |
Alloy structure steel | 20Mn2,40Mn2,20Cr,40Cr, 20CrMo,35CrMo,42CrMo, 20CrMnTi,20Cr2Ni4, 40CrNiMo | 1320,1345,5120, 5140,4118,4135, 4140,3316,4340 | SMn420,SMn438, SCr420,SCr440 SCM430,SCM435 SCM440,SCN815 SNCM439 |
Cold heading steel | ML10,ML20,ML30, ML35,ML35CrMo, ML42CrMo,ML15MnB | 1012,1020,1030 1034,4135,4140, 1518 | SWRCH10R SWRCH20K SWARCH35K SNB7 |
Spring steel | 65Mn,60Si2Mn,50CrVA | 1066,6150 | SCP6,SCP10 |
Bearing steel | GCr15 | E52100 | SUJ2 |
Stainless steel | 1Cr13,2Cr13 | 412,420 | SUS410,SUS420 |
Tooling steel | T8,T10 W6Mo5Cr4V2 | W1A-8, W1A-9.5,M2 | SK7,SK4,SKH9 |
Free cutting steel | Y12,Y12Pb,Y15, Y15Pb,Y40Mn | 1212,11L08,1215 12L13,12L14,1141 | SUM21,SUM32, SUM22L,SUM42... |
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Round steel | Square steel | Flat steel |
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hexagonal steel | Irregular steel | Steel pipe |
Company ProfileFounded in 2012, Junxiong Metal is located in Jiulong Metallurgical Industrial Park, an important upgrade project base of Jiangsu Sha Gang Group, one of the world's top 300 key projects in the "Twelfth Five-Year Plan" period of Jiangsu Province.Relying on the unique manufacturing, consumption, economic and trade, investment, transportation and industrial policies of the Yangtze River Delta and strong government support, Junxiong stands on the shoulders of the giant Sha Gang Group to create value for you.The main production and processing of cold-drawn round steel, square steel, flat steel, hexagonal steel, special-shaped steel, tooth steel, easy-to-chip steel, special-shaped drawn pipe steel, cold forging steel spheroidization, austenitic martensitic stainless steel, according to customers Mechanical properties, appearance and appearance require professional customized production. Products are widely used in standard parts, hardware tools, textile machinery, motorcycles, loaders, forklift parts, sports equipment, furniture and iron crafts, auto parts and other industries. Some products are indirectly exported to foreign countries, creating value for customers.
Lab Inspection EquipmentWe have professional equipment and technical engineers for your service, according to your requirements (material, shape, mechanical properties) customized production.Our company has automatic production line to produce round steel Good straightness, after chamfer, it can be machined by the longitudinal cutting machine Customization (length) Customization (heat treatment hardness) Customization (Grinding machine polishing)Finished Products Warehouse and ShipmentFAQQ: Are you trading company or manufacturer?
A: Both
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Or it is 30 ~40days if the goods are not in stock, it is according to quantity. The more the quantity is, the shorter the delivery will be.
Q: Do you provide samples? Is it free or extra?
A: Yes, we The inventory can be provided free of charge, but the freight will need to be borne by you
Q: What is your terms of payment?
A: T/T or L/C according to real order.
Q: What is your terms of payment? A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shippment. If you have another question, pls feel free to contact us as below