Steel Bar 18crnimo7-6 42CrMo4 1.7225 Alloy Forged Steel

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB
• Model NO.: alloy steel bar
• Composition: Ferrous Steel Scrap
• Technique: Hot Rolled/Forged/Cold Drawn Steel
• Shape: Bar
• Surface Treatment: Bright Steel Bar or Black Steel
• Special Use: Auto Parts
• Application: Structural Steel Bar
• Grade: Alloy Steel Bar
• Main Grade: 4140 4150 4340 42CrMo4 34CrMo4 etc.
• Free Sample: Yes
• Supply Condition: Hot Rolled/Forged/Cold Drawn+Qt
• Transport Package: Seaworthy Packaging
• Specification: dia: 5mm-300mm
• Trademark: dajin
• Origin: China
• Production Capacity: 3000

Product Description

18CrNiMo7-6 China supplier 4135 4140 34CrMo4 42CrMo4  4140 Alloy Construction Steel Bar 
Forged Alloy Steel Round Bar 4140 1.7225
Hot forging steel bar
Forged parts
18CrNiMo7-6 SCM440 SCM435 4130 4140 4145 forged bars
1.Chemical Composition (%):

Grade	C	Si	Mn	P	S	Cr	Mo
42CrMo4	0.38-0.45	0.17-0.37	0.40-0.70	≤0.035	≤0.035	0.90-1.20	0.15-0.25
1.7225	0.38-0.45	≤0.40	0.60-0.90	≤0.025	≤0.035	0.90-1.20	0.15-0.30
4140	0.38-0.43	0.15-0.35	0.75-1.00	≤0.035	≤0.040	0.80-1.10	0.15-0.25

2.Available sizes:
Round: Dia. 16 - 1000mm
16mm-350mm with hot rolled supply condition;
200-1000mm with forged supply condition
3.Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
4.Applications:
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
5.Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
7. Packing situation:  standard seaworthy packing or as customer required
8. Delivery time:  30 days after order confirmed 
9. Process:  EAF+LF+VD ( necessary) +UT+ Peeled(optional)  +Turned (optional) + Heat Treatment (optional)

The grades we can supply 

	Steel grades	C	Si	Mn	Cr	Mo	Ni	P	S	V	w
Carbon Structure Steel	Q235(B)/SS400/S235JR/A36	≤ 0.20	≤0.35	≤1.4	0.3-0.4		≤0.30	≤ 0.045	≤ 0.045
	20#/CK22, CK20/1020/050A20/S20C	0.17-0.23	0.17-0.37	0.35-0.65	0.3-0.4		≤0.30	≤ 0.035	≤ 0.035
	45#/CK45, C45/1045/080M46/S45C	0.42-0.5	0.17-0..37	0.5-0.8	0.3-0.4		≤0.30	≤ 0.035	≤ 0.035
Alloy Structure Steel	20Cr/20Cr4/5120/527A19/SCr420H	0.18-0.24	0.17-0.37	0.50-0.80	0.70-1.00	≤0.15	≤0.30	≤ 0.035	≤ 0.035
	40Cr/41Cr4/5140/520M40/SCr440	0.37-0.44	0.17-0.37	0.5-0.8	0.8-1.1	≤0.15	≤0.30	≤ 0.035	≤ 0.035
	30CrMo/4130/1717COS110/SCM420	0.26-0.34	0.17-0.37	0.4-0.7	0.8-1.1	0.15-0.25	≤0.30	≤ 0.035	≤ 0.035
	35CrMo/34CrMo4/4135/708A37	0.32-0.40	0.17-0.37	0.4-0.7	0.8-1.1	0.15-0.25	≤0.30	≤ 0.035	≤ 0.035
	42CrMo/42CrMo4/4140/708A42/708M40	0.38-0.45	0.17-0.37	0.5-0.8	0.90-1.2	0.15-0.25	≤0.30	≤ 0.035	≤ 0.035
	8620H	0.17-0.23	0.15-0.35	0.65-0.95	0.35-0.65	0.15-0.25	0.35-0.75	≤0.025	≤ 0.035
	40CrNiMoA/40CrNiMo22/4340/871M40/SNCM439	0.37-0.44	0.17-0.37	0.50-0.80	0.60-0.90	0.15-0.25	1.25-1.65	≤ 0.025	≤ 0.025
Spring Steel	55Si2Mn/55Si7/9255/250A53/SUP6	0.52-0.60	1.50-2.00	0.60-0.90	≤0.35		≤0.35	≤ 0.035	≤ 0.035
	60Si2MnA/65Si7/9260/250A61/SUP7	0.56-0.64	1.60-2.00	0.70-1.00	0.3-0.4		≤0.35	≤ 0.025	≤ 0.025
	50CrVA/50CrVA/6150/735A50/SUP10	0.47-0.54	0.17-0.37	0.50-0.80	0.80-1.10	≤0.15	≤0.30	≤ 0.025	≤ 0.025
	GCr15/100Cr6/E52100/534A99/SUJ2	0.95-1.05	0.15-0.35	0.25-0.45	1.40-1.65	≤0.10	≤0.30	≤ 0.025	≤ 0.025
Bearing  Steel	52100	0.93-1.05	0.15-0.35	0.25-0.45	1.35-1.60	≤0.10	≤0.25	≤ 0.025	≤ 0.015
Cold Working Die Steel	CrWMn/105WCr6	0.9-1.05	≤0.40	0.8-1.1	0.9-1.2			≤0.030	≤0.030		1.2-1.6
	9Mn2V/O1/SKS3/105WCr6	0.85-0.95	≤0.40	1.70-2.00				≤0.030	≤0.030	0.1-0.25
	Cr12/D3/SKD1/X210Cr12	2.00-2.30	≤0.40	≤0.40	11.5-13.0			≤0.030	≤0.030
	Cr12Mo1V1/D2/SKD11/X165CrMo12V	1.40-1.60	≤0.60	≤0.60	11.0-13.0	0.70-1.20		≤0.030	≤0.030	0.5-1.1
Hot Working Die Steel	5CrNiMo/l6/skt4/55CrNiMoV2	0.5-0.6	≤0.40	0.5-0.8	0.5-0.8	0.15-0.30	1.40-1.80	≤0.030	≤0.030
	4Cr5MoSiV1/H13/SKD61/X40CrMoV51	0.32-0.45	0.8-1.20	0.2-0.5	4.75-5.5	1.10-1.75		≤0.030	≤0.030	0.8-1.2
	4Cr5MoSiV/H11/SKD6/X38CrMoV51	0.33-0.43	0.8-1.20	0.2-0.5	4.75-5.5	1.10-1.60		≤0.030	≤0.030	0.30-0.60
	3Cr2W8V/H21/SKD5	0.3-0.4	≤0.40	≤0.40	2.2-2.7			≤0.030	≤0.030	0.2-0.5	7.5-9.0
Plastic Die Steel	45-55/1045-1055/S45C-S55C/C45-C55	0.42-0.5	0.17-0..37	0.5-0.8	0.3-0.4		≤0.30	≤ 0.030	≤ 0.030
	40Cr/5140/SCr440/41Cr4	0.37-0.44	0.17-0.37	0.5-0.8	0.8-1.1	≤0.15	≤0.30	≤ 0.030	≤ 0.030
	3Cr2MoV/P20/40CrMnMoS36	0.28-0.40	0.20-0.80	0.60-1.00	1.4-2.0			≤0.030	≤0.030		0.3-0.55
	3Cr2NiMnMo/P20+Ni/PDSSS/2738	0.32-0.40	0.2-0.4	1.10-1.50	1.7-2.0	0.25-0.40		≤0.030	≤0.030

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