Name: sae 4340 alloy steel bar Chinese export import plastic mould tool steel traders
Brand: Circle Four
Availability: InStock

Product Details

Specifications

We have our own factory .Our company is specialized in alloy steel 4340 and all kinds of steel with cost advantage .

sae 4340 alloy steel bar Chinese expo steel rt import plastic mould tool steel traders

1. Specification:

Material:	4340
Process:	EAF + LF + VD + HOT ROLLED + Heat Treatment (optional)
Dia/Thickness:	20mm-500m/80-600mm, or customer’s request
Width:	200-2300mm, or customer’s request
Length:	2000mm-5800mm , or customer’s request
Heat treatment:	Normalized / Annealed / Quenched / tempered
Delivery condition:	Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
Technical Data:	According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing
Test:	Ultrasonic test according to SEP 1921-84 GR3 C/C
Delivery time:	7-15 days after advanced payment
Payment:	30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight

2.Chemical analysis

Round bar AISI 4340

2.1. Standards: AISI 4340 8620 8640 4320 , JIS SNCM8 GB:40CrNiMoA

2.2. Specification: Dia: 80~450mm Length:2000-13000mm or as required

2.3. Process: EAF+LF+VD ( necessary) UT+ Peeled +Turned + Heat Treatment (optional)

2.4. Machine Capability

Tensile strength (N/mm2Mpa): >=980(100)
Elongation: >=12
Yield strength: >=835(85)
Hardness:( HBS 100/3000)<=269
Reduction of area:>=55

Akv(J)>=78 akv(J/cm2):>=98(10)

2.5. Chemical Composition (%):

C	Si	Mn	S	P	Cr	Ni	Cu	Mo
0.37-0.44	0.17-0.37	0.40-0.80	0.025(max)	0.025(max)	0.60-0.90	1.25-1.65	0.025(max)	0.15-0.25

2.6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C

About us:

◊Establish: Dongguan Circle Four Metal Materials Co., Ltd. was established in 2008 has 5 years manufacturing and exporting professional experience in mould steel, special steel etc.

◊Products: We mainly manufacture more than 100 kinds of hot rolling or forging products, such as alloy structural steel, alloy tool steel, carbon structural steel, carbon tool steel, plastic mould steel, hot work steel, cold work steel, spring steel and high speed steel.

◊Capacity: 500, 000MT per year.

Any interests in our company and products, please feel free to contact us for quotation. We warmly welcome you to our factory.

Our company located in No.38XinGang Road,Xinan,Xinan,Xingnongcun,Changan Town,Dongguan City,China . Tel: 86-0769-85310228 fax 86-0769-85348866 .

Our advantage products:

tool steel	GB (Chinese)	ASTM (American)	JIS (Japanese)	DIN (German)
Cold work	Cr12	D3	SKD1
	Cr12MoV
	Cr12Mo1V1	D2	SKD11	1.2379
Hot work	5CrNiMo	L6	SKT4	55NiCrMo;V6
	5CrNiMoV
	4Cr3Mo3SiV	H10A	SKD7	1.2885
Plastic tool steel	40Cr	5140	SCr440	1.7035
	SWP20	P20	SCM4	1.2311
	SW718H	P20+Ni		1.2738
	3-4Cr13	420		1.2083
	3-4Cr16Mo	420	SUS420	1.2316
	10Ni3MoAlCu	P21	NAK80
Carbon steel	48C	1045-1055	S45C-S55C	1.1730

Our factory now equiped with large-sized Vertical sawing machines,Horizontal saw machines,Milling machines,Grinding machines,Finish milling.

We do hardness testing of processing for your needs and we also have advanced ultrasonic flaw detection equipment.

Our products have selling to:

Indonesia,Singapore,Japan,Korea,India,Malaysia,Mexico,Brazil,Denmark,Turkey,Germany,Italy,Dubai,the middle east and other regions.