Basic Info.
Special Use
Wear Resistant Steel, Silicon Steel, Cold Heading
Main Shapes
Round Bar, Flat Bar, Square Bars
Standard
AISI, ASTM, DIN, JIS, GB, BS, En, ISO
Product Description
JIS/SAE FREE CUTTING STEEL
Free cutting steel wires are optimized for machining on automated machine tools. Their properties are achieved through alloying with lead or sulfur which leads to the formation of soft inclusions on which the chips can break.
Alloying with lead results in finely dispersed, heterogeneous lead inclusions in the steel on which the chips can break. Freecutting steels used at very high cutting rates are alloyed with lead.
Alloying with sulfur and manganese results in similar properties as with lead alloys. The sulfur creates soft, linear inclusions of manganese sulfide within the steel on which the chips break
a.Sulfur free-cutting steel
SAE No. (AISI) | Chemical composition % |
C | Mn | P | S | V |
1117 | 0.14 ~ 0.20 | 1.00 ~ 1.30 | 0.030 | 0.08 ~ 0.13 | - |
1118 | 0.14 ~ 0.20 | 1.30 ~ 1.60 | 0.030 | 0.08 ~ 0.13 | - |
1126 | 0.23 ~ 0.29 | 0.70 ~ 1.00 | 0.030 | 0.08 ~ 0.13 | - |
1132 | 0.27 ~ 0.34 | 1.35 ~ 1.65 | 0.030 | 0.08 ~ 0.13 | - |
1137 | 0.32 ~ 0.39 | 1.35 ~ 1.65 | 0.030 | 0.08 ~ 0.13 | - |
1138 | 0.34 ~ 0.40 | 0.70 ~ 1.00 | 0.030 | 0.08 ~ 0.13 | - |
1140 | 0.37 ~ 0.44 | 0.70 ~ 1.00 | 0.030 | 0.08 ~ 0.13 | - |
1141 | 0.37 ~ 0.45 | 1.35 ~ 1.65 | 0.030 | 0.08 ~ 0.13 | - |
11V41 | 0.37 ~ 0.45 | 1.35 ~ 1.65 | 0.030 | 0.08 ~ 0.13 | 0.04 ~ 0.08 |
1144 | 0.40 ~ 0.48 | 1.35 ~ 1.65 | 0.030 | 0.24 ~ 0.33 | - |
1146 | 0.42 ~ 0.49 | 0.70 ~ 1.00 | 0.030 | 0.08 ~ 0.13 | - |
1151 | 0.48 ~ 0.55 | 0.70 ~ 0.90 | 0.030 | 0.08 ~ 0.13 | - |
- b.Phosphorus and sulfur free-cutting steel
SAE No. (AISI) | Chemical composition % |
C (max) | Mn | P | S | Pb |
1212 | 0.13 | 0.70 ~ 1.00 | 0.07 ~ 0.12 | 0.16 ~ 0.23 | - |
1213 | 0.13 | 0.70 ~ 1.00 | 0.07 ~ 0.12 | 0.24 ~ 0.33 | - |
1215 | 0.09 | 0.75 ~ 1.05 | 0.04 ~ 0.09 | 0.26 ~ 0.35 | - |
12L14 | 0.15 | 0.85 ~ 1.15 | 0.04 ~ 0.09 | 0.26 ~ 0.35 | 0.15 ~ 0.35 |
Remarks
1. Specifications of impurities shall be determined through arrangements between the parties involved in the delivery.
However, the upper limits of Cu, Ni, Cr, and Mo shall be
0.35%, 0.25%, 0.20%, and 0.06%, respectively, unless otherwise specified in the standards.
2.Lead:
0.15 to 0.35% of lead can be added to carbon steel to increase the cutting properties.
These steel types can be identified by an "L" inserted between the second and third numeric characters in the code, for example
11L37.
3.Si: Si is not added to 12xx series steel from the viewpoint of cutting properties.
- Code
Code | C | Mn | P | S | Pb |
SUM21 | 0.13 or less | 0.70 ~ 1.00 | 0.07 ~ 0.12 | 0.16 ~ 0.23 | - |
SUM22 | 0.13 or less | 0.70 ~ 1.00 | 0.07 ~ 0.12 | 0.24 ~ 0.33 | - |
SUM22L | 0.13 or less | 0.70 ~ 1.00 | 0.07 ~ 0.12 | 0.24 ~ 0.33 | 0.10 ~ 0.35 |
SUM23 | 0.09 or less | 0.75 ~ 1.05 | 0.04 ~ 0.09 | 0.26 ~ 0.35 | - |
SUM23L | 0.09 or less | 0.75 ~ 1.05 | 0.04 ~ 0.09 | 0.26 ~ 0.35 | 0.10 ~ 0.35 |
SUM24L | 0.15 or less | 0.85 ~ 1.15 | 0.04 ~ 0.09 | 0.26 ~ 0.35 | 0.10 ~ 0.35 |
SUM25 | 0.15 or less | 0.90 ~ 1.40 | 0.07 ~ 0.12 | 0.30 ~ 0.40 | - |
SUM31 | 0.14 ~ 0.20 | 1.00 ~ 1.30 | 0.040 or less | 0.08 ~ 0.13 | - |
SUM31L | 0.14 ~ 0.20 | 1.00 ~ 1.30 | 0.040 or less | 0.08 ~ 0.13 | 0.10 ~ 0.35 |
SUM32 | 0.12 ~ 0.20 | 0.60 ~ 1.10 | 0.040 or less | 0.10 ~ 0.20 | - |
SUM41 | 0.32 ~ 0.39 | 1.35 ~ 1.65 | 0.040 or less | 0.08 ~ 0.13 | - |
SUM42 | 0.37 ~ 0.45 | 1.35 ~ 1.65 | 0.040 or less | 0.08 ~ 0.13 | - |
SUM43 | 0.40 ~ 0.48 | 1.35 ~ 1.65 | 0.040 or less | 0.24 ~ 0.33 | - |
- Note:
· There is no specification for Si.
However, limit or range values, such as 0.10% or less, 0.10 to 0.20%, and 0.15 to 0.35%, can be set through arrangements between orderer and manufacturer.
·Elements not specified in this table must not be intentionally added to steel for purposes other than finishing molten steel unless otherwise agreed upon between orderer and manufacturer.
·The upper value of Mn in SUM22 and SUM22L can be set at 1.10% through arrangements between the parties involved in the delivery. -
Types |
K | +U+C | shaped (air-patented (stelmor); lead-patented |
K+GKZ | +U+C+AC | shaped + annealed on spheroidised carbide |
K+GKZ+K | +U+C+AC+LC | shaped + annealed on spheroidised carbide+ skin-pass |
Further types upon request |
Coil |
Inner diameter 400 / 500 / 600 mm |
Outer diameter max. 1.250 mm |
Max. Weight 450 - 3.000 kg |
China Sunfu Special Metal Co., Ltd.
Sunfu was founded in 2007,Located in Baoshan, Shanghai, Shanghai international iron and steel service center. by a group of young dreamers who are focus on building a more competitive metal supply chain. We make efforts to provide more cost-effective raw materials and unique technical service for China and the world's metal companies.Today, Sunfu has grown into one of the most professional service providers in the field of metal materials circulation field. Sunfu is currently active in many fields of global metal manufacturing industry. The reliable product solutions, perfect service network and standardized process control system are favored by many users around the world and has become the first choice of preferred metal material overall solution provider for many users.
Sunfu is cooperating with many famous metal raw materials manufacturers around the world, from product to technology, and even to explore the industry leading edge metal solutions.Especially in the automotive field, Sunfu has profound product application and technology accumulation and provides metal materials on many car brands, such as car door lock buckle, engine nozzles, engine cylinder cover bolts and many other auto parts.
Sunfu is the first metal material service provider to propose the overall metal solution. We have established a large processing alliance system, with extensive warehousing services, and numerous processing cooperative enterprise, which can provide the whole solution of cold heading material processing, precision steel pipe customized, high precision grinding rod customized and deep punching cold rolled strip and so on. We provide one-stop procurement services for global customers and a package of procurement plan solutions
Tel: 8613661456525
Add: Building 1003, No. 2, 1518 Youyi Road, Baoshan, Shanghai, China
Website: wuxioriental.en.made-in-china.com
FB: https://wuxioriental.en.made-in-china.com/?ref=page_internal
Address:
Add: No 12-12, Jinma Road, Hung Hill Industrial Park, Wuxi, Jiangsu, CN District,WuXi City.
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Service
Management System Certification:
ISO 9001
Company Introduction:
Wuxi Oriental Machinery is one of leading manufacturer, specializing in designing and manufacturing steel leveling machines, slitting line, cut to length lines, integrated ocean container production lines, punching lines and other customized production lines for metal processing from Y 1992 as a state-owned enterprise. It is in Y1992 Wuxi Oriental Machinery designed and manufactured 1st 4X1600 leveling machine for China No. 2 Automobile(At the moment Dongfeng Mobile ), With more than 25 years′ development, the plant has achieved high reputation of designing and manufacturing machines and metal processing lines in China and overseas market. At present, it has more than 100 kinds of products with different specifications from thin plate to thick plate, from steel plate to color plate and composite plate leveling. To satisfy various demands for different customers.
Now Oriental machines and lines has been found everywhere in domestic and exported to many countries such as Vietnam, India, Thailand, Malaysia, Jordan, Russia, Brazil etc. The plant has been certified by ISO 9001: 2000 quality management system since Y2000. Our plant is one of the earliest plants developing various new products in leveling equipment manufacturing industry. We have ability to provide qualified product with high quality for customer. Our plant persists in such operation tenet "start in the need of user, end with the satisfaction of user".
We would like to make sincere cooperation with our clients through our creditable services to strive for a bigger magnificence in our business.