ASTM Types of Q235 Q235b 5sp 3sp C45 S235jr Standard Hot Rolled Chemical Composition Steel Billets Specification
Billet: cross section width, height equal, or little difference, mainly used for rolling steel, wire.
Continuous cast steel billets and rectangular billets are mainly represented by plain carbon steel, low carbon and low silicon cold rolled material, high quality carbon structural steel, low alloy high strength steel and special steel grades. Billet is steel, after processing can be used to do mechanical parts, forging, processing all kinds of steel, steel Q345B channel steel, wire is the role of billet
Name | Square Mild Carbon Steel Billets |
Material | SPCC,SPCD,SPCE,ST12-15,DC01-06,Q195A-Q235A,Q195AF-Q235AF, Q295A(B)-Q345A(B) |
Standard | API 5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711 |
Section Shape | Square, Rectangular, Round, |
Surface Treatment | black/ galvanized/ coat /oiled /painting,etc |
Thickness | 150-240mm +/-5mm |
Width | 880-1530mm +/-20mm |
Length | 3700-10000mm +/-500mm |
Section tolerance: | Billet: 1.0 + / - 2.0-3.0 + / - 1.0 mm Slab: Width :+/- 2.0mm Thickness :+/- 3.0mm |
Cross section diagonal tolerance | 3.5-8.0mm |
Color | Golden, Black , Sapphire Blue, Brown, Rose gold, Bronze, Purple, gray, silver, Champagne,violet, blue diamond, etc |
Application | Building components, mechanical equipment |
Bending | the length of each 1M shall not exceed 10MM |



the strip surface finish.






(1)Quality Zhongxiang steel introduces the advanced testing equipments and builds up a professional scientific research team, strictly control the quality on each steps of production. including inspection on raw materials entry, product's color analysis during production,T-bend test, impact test, salt-spray test, tensile test and packaging testing on exported products , which ensures its integrated performance such as corrosion resistance, coating stickiness etc and the safety of transportation.













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