Round Forging Steel 20#-45# Q345 20cr-40cr 40crnimo 29crnimo

• Processing Object: Metal
• Molding Style: Forging
• Molding Technics: Gravity Casting
• Application: Instrument Accessories
• Material: Steel
• Heat Treatment: Quenching
• Model NO.: 20#/35#/45#/CrMo/CrNiMo/40Cr/20C/20CrMnMo/304/2Ni4
• Surface Treatment: Hot Galvanized
• Forging Tolerance: +/-0.5mm
• Standard: ASTM
• Certification: CE, ISO 9001:2000, ISO 9001:2008
• Transport Package: Wooden Case
• Specification: Diameter: 100-2000mm; Length 6000-9000mm
• Trademark: Changli Equipment
• Origin: Jiangsu Province, China
• HS Code: 7304599090
• Production Capacity: 30000t/Year

Product Description

Product Description

Round steel is divided into hot rolled, forged and cold drawn three kinds. Hot rolled round steel is 5.5-250 mm in size. Among them: 5.5-25 mm small round steel is mostly supplied in straight strips in bundles, commonly used as steel bars, bolts and various mechanical parts; Round steel larger than 25 mm, mainly used for the manufacture of mechanical parts or seamless steel blanks.
Round steel is a long, solid steel bar with a round cross-section. Its specifications are expressed in millimeters of diameter, such as "50" which means round steel with a diameter of 50 mm.
Round steel is divided into hot rolled, forged and cold drawn three kinds. Hot rolled round steel is 5.5-250 mm in size. Among them: 5.5-25 mm small round steel is mostly supplied in straight strips in bundles, commonly used as steel bars, bolts and various mechanical parts; Round steel larger than 25 mm, mainly used for the manufacture of mechanical parts or seamless steel blanks
The difference between round steel and other rebar :1 appearance is not the same, round steel appearance is light garden, no lines and no ribs, and other rebar surface appearance is engraved or ribbed. In this way, the bond between round steel and concrete is small, while the bond between other steel bars and concrete is large. 2 The composition is not the same, round steel (first grade steel) belongs to ordinary low carbon steel, and other steel bars are mostly alloy steel. 3 The strength is not the same. The strength of round steel is low, and the strength of other steels is high, that is, compared with other steel bars of the same diameter, the tension that round steel can withstand is smaller than other steel bars, but the plasticity of round steel is stronger than other steel bars, that is, the round steel has a larger deformation before being pulled off, and the deformation of other steel bars before being pulled off is much smaller.

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Changli can produce round steel forgings , shaft steel forgings , square steel forgings , ring steel forgings ,cylinder steel forgings ,special - shaped steel forgings ,modules steel forgings ,etc.
Changli has these steel sorts of carbon structure steel (alloy No.: 20#/35#/45# etc)  ,low alloy structure steel ((alloy No.: Q355A/B/C/D/E=S355-J2/NL-G3 ),alloy structure steel ((alloy No.: CrMo , CrNiMo , 40Cr , 20Cr2Ni4 ,20CrMnMo,37SiMnMoV,GCr15) ,stainless steel ((alloy No.: 304/316),stainless iron ((alloy No.: 1Cr13 ,2Cr13 ,3Cr13 ,4Cr13 )and mould steel  ((alloy No.: P20 , H13 ,H18 )for these steel forgings .

Their usages: pump, heavy truck/train nave of wheels, heavy truck/train transmission shafts, winning/mining machineries,transmission shafts and anchors of heavy ships, Oil drilling machine of petrochemical industry, wind power, large crab buckets,large track rails,large ,gear wheels,all kinds of large shafts ,large hydro-cylinder, spare parts for heavy machineries.

Changli also can provide these services and processing with heat treatment, mechanical processing, and finished parts processing. 0.75 tons to 30 tons of per steel ingot can also be supplied.