Question 1

What sizes of AISI 4340 / 34CrNiMo6 do you stock in Dubai?

Accepted Answer

We hold AISI 4340 / 34CrNiMo6 in the following forms and size ranges — Round Bars: 20 - 1000 mm dia, forged, Blocks & Profiles: Forged blocks and discs. Cut-to-size, profiling and kitting are available on request, and anything outside the stock range is sourced direct from the mill.

Question 2

What are the equivalent grades to AISI 4340 / 34CrNiMo6?

Accepted Answer

AISI 4340 / 34CrNiMo6 is commonly cross-referenced with 1.6582, 34CrNiMo6, SNCM439, 817M40. Equivalents are nominal: send us the property that matters for your application and we will confirm the closest grade we can certify.

Question 3

Is AISI 4340 / 34CrNiMo6 supplied with mill certification?

Accepted Answer

Yes. Every delivery of AISI 4340 / 34CrNiMo6 is supplied against ASTM A29, EN 10083-3 with EN 10204 3.1 mill certification and full heat-number traceability. Third-party inspection can be arranged on request.

Question 4

What is AISI 4340 / 34CrNiMo6 typically used for?

Accepted Answer

AISI 4340 / 34CrNiMo6 is specified for heavy duty gears and pinions, aircraft landing gear components, crankshafts, mainly in Aerospace, Mining, General Engineering. Tell us the duty and we will advise whether AISI 4340 / 34CrNiMo6 or another alloy steel grade is the better fit.

الشكل	نطاق المقاسات
القضبان الدائرية	20 - 1000 mm dia, forged
الكتل والمقاطع	Forged blocks and discs

العنصر	الحد الأدنى	الحد الأقصى
C	0.38	0.43
Ni	1.65	2.00
Cr	0.70	0.90
Mo	0.20	0.30

الخاصية	القيمة	الوحدة
Yield Strength (Q+T)	860 min	MPa
Tensile Strength (Q+T)	1000 - 1200	MPa
Elongation	10 min	%

AISI 4340 / 34CrNiMo6

الأشكال والمقاسات المتوفرة

التركيب الكيميائي (%)

الخصائص الميكانيكية

الخصائص الفيزيائية

التطبيقات النموذجية

أسئلة متكررة

AISI 4140 / 42CrMo4