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Jinan Tianzan is an enterprise exporting steel to more than 50 countries and regions in Europe, southeast Asia, Africa, etc., the company constantly updates advanced technology and innovation to provide customers with quality products, welcome all customers and friends from all over the world to come to our company

Copyright © 2020 Jinan Tianzan Steel Co.,Ltd

Contact us

E-mail：sales@lctzsteel.com

Phone：+86 13176150233

Whatsapp：+86 13176150233

Add：No.359 Shunhua Road ,Hi-tech Zone District, Jinan City, Shandong Province

One-stop solution for steel products

4145 Alloy round steel

Phone：+86 13176150233

Whatapp：+86 13176150233

Since its establishment, Jinan Tianzan Steel Co., Ltd. has standardized operation and strict management. Relying on the advantages of rich iron and steel resources in Shandong province, the company's proprietary technology and famous and excellent featured products, it promotes technological progress, optimizes product structure, moderately expands production scale, and its business performance continues to grow steadily.

Our company


NameAlloy round steel
StandardGB/T 700-2006,GB/T  1591-94,JIS G3101-2004,
ASTM A36/A36M-05,ASTM A242/A242M-04,ASTM A529/A529M-05,
ASTM A572/A572M-06,EN 10025-2-2004
MaterialQ195,Q215 A,Q215 B,Q235  A,Q235 B,Q235 C,
Q235D,Q275,Q275B,Q275C,Q275D,Q295,Q345,Q390,Q420, Q460,
SS330,SS400,SS490,SS540,A36,1,GR.36,50(245),55(380),42(290),
60(415),65(450),S185(1.0035),S235JO(1.0114), S235JR(1.0038),
S235J2(0.0117),S275JR(1.0044),S275JO(1.10143),S355JO(1.0553),
E295(1.0050),E335(1.0060), S235J2W(1.861),S355J2W(1.8965),10#,
15#20#
Diameter4mm~800mm
Length1m,3m,5.8m,6m,12m or as  required
Surfacepolished,bright,black,coated,2b,ba,mirror,NO.4,8K
PackageStandard export  seaworthy or as customers' requirements

4145 Alloy round steel


Standard export packing (inside:water proof paper,outside:steel covered with strips and pallets)


20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)

40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)

40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)


4145 Alloy round steel

4145 Alloy round steel

4145 is a low alloy chromium molybdenum steel similar to 4140 but with amended analysis which contributes towards its increased hardenability at larger diameters.  4145 steel bars are popular in larger diameters due to this increased strength and hardenability.

4145 alloy steel can be easily forged, machined and welded.  It can also be heat treated to a wide range of strength and ductility levels.  This forged bar stock is used in many oil and gas application including as forged down-hole drilling tools.