Audited Supplier
Aisi 4140 Astm a369 Grade 8.8
Carbon Steel Bar
AISI, ASTM, GB, JIS, DIN, BS
Hot Rolled
Structural Steel Bar, Tool Steel Bar, Die Steel Bar
Polished
Non-alloy
Mold Steel, Free Cutting Steel, Cold Heading Steel
Steel Round Bar
Black,Polished
Eaf + Lf + Vd + Forged + Heat Treatment
4000mm-15000mm or Cut to Length
OEM Processing Service
Cutting,Bending
Ultrasonic Test
Fob CIF CFR EXW
T/T or L/C
5-15 Days
Tianjin Emerson
Standard Export Package
Diameter: 16-280mm
Tianjin China
Product Description
*Product Description
| Product Name | High Quality Aisi 4140 Astm a369 Grade 8.8 30mm High Strength Carbon Steel Round Bar Rod Bar |
| Grades | Aisi 4140 Astm a369 Grade 8.8 |
| Surface | Black,Polish,Oiled |
| Technique | Hot rolled |
| Delivery Condition | Black Surface,Rough machined or as required |
| Test | 100% Ultrasonic test |
| Process | EAF + LF + VD + Forged + Heat Treatment |
| Dimension | Diameter : 16mm - 250mm |
| Length : 4000-15000mm or cut to length | |
| Application | 1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc. 2): Can be made into mould template, mortise pin, column 3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear... 4): This kind of steel is the most common blanks and materials of shaft parts. Its die welding material model is CMC-E45. |
| Inspection | Mill Test Certificate is supplied with shipment,SGS inspection is accepted if needed |
| Package | Standard export seaworthy package or as required. |
| Port | Tianjin Port or Customer designated port of destination |
| Delivery Time | 5-15 days,according to customers' grades,dimension and quantities |
Commen steel round bar category,grade,sizes and standard:
| Category | Grades | Sizes | Standard |
| Carbon structure steel | Q195, Q215, Q235, Q275 | 16mm-250mm | GB/T700-2006 |
| Low alloy high strength structure steel | Q295, Q345, Q390, Q420, Q460 | 16mm-250mm | GB/T1591-2008 |
| Prime Carbon structure steel | 10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45 | 16mm-250mm | GB/T699-1999 |
| Alloy structure steel | 30Mn2, 40Mn2, 27SiMn, 42Crmo, 20Cr,40Cr,20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi, 20MnVB, 20MnTiB, 45MnV, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V, | 16mm-250mm | GB/T3077-1999 |
| Spring Steel | 65Mn, 60Si2Mn, 50CrVA | 16mm-250mm | GB/T1222-84 |
| Bearing Steel | GCr15, GCr15GD,55SiMoV | 16mm-250mm | GB/T18254-2002 |
| Structural steels subject to end-quench hardenability requirements | 20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b,35MnBM, 40MnB,45MnV. | 16mm-250mm | GB/T5216-2004 |
| Oil wells structural steel | 37Mn5, 36Mn2V | 16mm-250mm | Q/LYS248-2007 |
| Marine anchor chain steel | CM490, CM690, M30Mn2 | 16mm-250mm | YB/T66-1987 |
| GB/T18669-2002 |
*Detailed Images
*Processing Service
Our company can provide round bar processing service,cutting to length as needs,machining to threaded rod
etc,we can do any processing service according to customers' requirments.
Steel Rod Threaded Rod Process
First:doing heat treatment Q+T for hot rolled round bars to make sure the rods to reach the hardness as required.
Second:doing UT to test the rods after heat treatment.
Third:making turning for the rods by machining.
Forth:making thread on the bright smooth rods.
Fifth:making the nuts match the thread rods.
Third:making turning for the rods by machining.
Forth:making thread on the bright smooth rods.
Fifth:making the nuts match the thread rods.
*Packing&Shipping
| Packing | 1. by bundles, each bundle weight under 3 tons, for small outer diameter round bar,each bundle with 4 - 8 steel strips. |
| 2. 20 feet container contains dimension, length under 6000mm | |
| 3. 40 feet container contains dimension, length under 12000mm | |
| 4. By bulk vessel, Freight charge is low by bulk cargo, and large heavy sizes can not be, loaded into containers can shipping by bulk cargo |
*Company Profile
Tianjin Emerson Commercial and Trade Co.,Ltd located in Tianjin,China,holding large stock of steel coils and
steel pipe,hollowbar,provide all kinds of steel products with super fast delivery time.Specialized in OEM Custom
Fabrication Service,Flame Cutting,Laser Cutting,Water Cutting Service.Supply steel products bending service,
steel heat treatment,steel machining service,steelwelding service and sheet metal fabrication,and other fabrication
service;also provide steel structure fabricationservice,scaffolding,formwork and steel metal building material
with short delivery time.
steel pipe,hollowbar,provide all kinds of steel products with super fast delivery time.Specialized in OEM Custom
Fabrication Service,Flame Cutting,Laser Cutting,Water Cutting Service.Supply steel products bending service,
steel heat treatment,steel machining service,steelwelding service and sheet metal fabrication,and other fabrication
service;also provide steel structure fabricationservice,scaffolding,formwork and steel metal building material
with short delivery time.
*Other Products
We also provice steel coil,steel pipe,steel round bar,square bar,square tube,checker plate,galvanized coil,
angle bar,H beam etc steel product,please feel free to contact us if you have any requirments.
