AISI 4340 Steel Round Bar AISI 4340 Alloy Steel Bar

• Customization: Available
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB
• Model NO.: AISI 4340
• Technique: Hot Rolled/Cold Drawn
• Shape: Bar
• Surface Treatment: Bright;Black
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Structural Steel Bar
• Transport Package: Standard Export Packing
• Specification: 6-120
• Trademark: shanghui
• Origin: Tianjin China
• HS Code: 7228400000
• Production Capacity: 50000t/M

Product Description

Material:	round steel bar ASTM SAE4340
Diameter:	6mm-120mm (optional)
Length:	1000mm-12000mm Straightness: 3mm/M max(optional)
Process:	EAF + LF + VD + Forged + Heat Treatment (optional)
Delivery condition:	Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
Delivery Time:	30-45 days
MOQ:	20 tons
Heat treatment:	Normalized / Annealed / Quenched / tempered
Technical Data:	According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing
Properties:	Yield=310 Mpa Minimum; Tensile=600 Mpa minimum; %EI=13min,Surface Hardness=BHN160-220(As your request)
Test:	Ultrasonic test according to SEP 1921-84  Class C/c and D/d  (optional)
Marking:	Grade, heat NO. length will be stamped one each bar with required color
Payment:	30% advance by T\T; Balance pay before the shipment against shipping documents or irrevocable LC at sight
similar steel grade	4140/42crmo4/scm440/sae4140

 

Company Main Products:

 

Alloy Steel	5140,5115,5120,5130,5145,4118,4130,4135,6150,5115,4142,4130,4118,6150,4140,4720,4320 ,E9310,8620,4340
Tool Steel	H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419, SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
Bearing Steel	GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel	9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159
Stainless Steel	321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028, 434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057,201,202,301

aisi 4340 alloy steel round bar

Cold Drawn/Hot Rolled Round Bar

 Diameter:4mm-90mm

Lengh:According to customers' requirements

Material:Q235,45#,40Cr,20#   

Standard:GB , ASTM , JIS

Product Description

 Material Grade: 1008,1010,1020,1045,1021,1030,1050,1566,9255,9260,6150,E51100,E52100,C1109,B1113,C1120,C1144,1320,1330,1340,1345,5115,5140,4119,4125,4130,4140,4135,6120,6150,5152,3140H,3316,3325,4340,L3,W5,H21,H11,D2,D3,T1,N2,T4,M42,H13,SKS8,SK21,SKD1,SKS3,SKD5,SKT4,SKD61,SCr440,SCM3,SACM645,SUM12,SUM22,S45C,C22,C45,40Mn4,105Cr4,20Cr4,41Cr4,20CrMo44,42CrMo4, and so on.
3.Standard: ASTM BS JIS NF DIN GB
4.Size:for hot rolled steel bar,6mm-250mm
     For cold drawn steel bar,3mm-100mm
     For forged steel bar,80mm-600mm
5.Length: 6000/8000mm,or other length as the customers' requirements. 
6.Process: hot rolled; cold drawn; Forged
7.Surface: black, bright, 
8.Tolerance:H9,H10,H11 or as the customers' requirements.
9.UT test: SEP 1921 UT
Applications for industrial :
1.Equipment, 
2.Railway vehicles, 
3.Pressure vessels, 
4.Power station equipment, 
5.Oil derrick, 
6.Construction machinery, 
7.Railway equipment,
8.Ships
9.Bridges,
10.Buildings,
11.Machinery and equipment,
12.Machina tool manufacturing
Packing 
Standard export packing, or as the customers' requirement.