Alloy Steel Suppliers – 4140 and 4340 Specialists

High Tensile Steels are developed with high yield, tensile and fatigue strengths, as well as excellent toughness when subjected to a quenching and tempering. (Supplied in the hardened and tempered condition). Here at Bohler Uddeholm, we are experienced 4140 alloy steel and 4340 steel suppliers, helping our clients achieve the results they require with the highest standards of service.

Other grades and sizes available on request.

Title Type/Filesize Download

4140    

W-Nr 1.7225, AS 4140, BS EN19A, AISI 4140   
Cr Mo steel for applications requiring high tensile strength and toughness values, in particular in medium and large cross sections in the quenched and tempered condition.

Size Range:

Rd 10mm - 650mm, Hollow 45/28 - 200/140mm,
Hex 19 - 75mm A/F
Sq 28mm - 127mm
Fl 76.2x38.1mm
Chrome Bar 19.05mm - 101.6mm
Ground 12.7mm - 110mm (H9 Toll)
Peeled & Polished 19.05mm - 101.6mm (H11 Toll).

Other size available on request

PDF Download
PDF / 232 KB

709M

W-Nr 1.7225, AS 4140, BS EN19A, AISI 4140
When compared to other 4140 steels ASSAB 709M has guaranteed superior machinability characteristics in all sizes.

Size Range:
Rd 16mm - 250mm

Other sizes available on request.

PDF Download
PDF / 121 KB

4340    

W-Nr 1.6565, AS 4340, BS ~EN24, AISI 4340   
Ni Cr Mo steel for applications requiring high tensile strength and toughness values, particularly in large cross sections in the quenched and tempered condition.

Size Range:
Rd 17mm-460mm

Other sizes available on request.

PDF Download
PDF / 189 KB

EN-25    

W-Nr 1.6743, AS X9931, BS EN25   
21/2% Ni Cr Mo alloy steel with increased strength due to the Ni content. Supplied in the hardened and tempered condition.

Size Range:
Rd 7.94mm- 260mm
Sq 300mm

Other sizes available on request.

PDF Download
PDF / 63 KB

EN26    

W-Nr 1.6745, AS X9940, BS 970 826 M 40   
21/2% Ni Cr Mo alloy steel with higher C content. Supplied in the hardened and tempered condition. Higher strength than EN25.

Size Range:
Rd 25mm - 300mm

Other sizes available on request.

PDF Download
PDF / 117 KB

4145H    

AISI 4145H Mod.API Spec.7   
45% C Cr Mo alloyed steel normally used in oil field pplications.

Size Range:
Rd 90mm - 280mm
Hollow 180/57.15 - 254/76.2

Other sizes available on request

PDF Download
PDF / 101 KB

Contact us today

Talk to the specialists suppliers of alloy steel here at Bohler Uddeholm about how we can help your business and project. Call us today on (02) 9681 3100 and discuss your requirements with our team of professionals.