Carbon Steel Flat Bars

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Spring Steel Flat Bar
Spring Steel Flat Bar
Available Carbon Steel Grades：A36, A516, Q195, Q235/Q235B, Q275, Q345/Q345B，For more material grades, Please click

Payment Term:TT,L/C,etc

Price Term:Ex-Work,FOB,CNF,CFR,etc

MOQ:1Ton

Delivery Time:Usually 7-30days, or upon negotiation

If you have any questions, please feel free to contact us.

8618961806236
sale2@ybtmetalproducts.com
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PRODUCT DESCRIPTION

Description


Spring steel refers to steel due to the elasticity in the quenched and tempered condition, and specifically for the manufacture of springs and elastic components. Spring steel depends on its ability to elastically deform, i.e., within the prescribed range, the ability to withstand a certain elastic deformation so that the load does not occur in the permanent deformation after the load is removed.


Application


Spring steel flat bars are widely used on auto fittings, auto manufacturing, hardware tools, chain manufacturing and other machinery manufacturing industry.  Automobile plate spring


Size Ranges


Width: 40mm-150mm; Thickness: 4mm-60mm


All Grades Comparison


GBASTMJISISODINBSANFRGOST
65#1065/TypeDC,SCCK67060A67XC6565
70#1070/TypeDC,SC/070A72XC7070
85#1086SUP3TypeDC,SCCK85060A86XC8585
65Mn1066///080A67/65Γ
60Si2Mn9260SUP6,SUP761SiCr760SiCr7Z51A6060Si760C2
60Si2CrA9254SUP1255SiCr63///60C2XA
55CrMnA5155SUP955Cr355Cr3525A5855Cr3/
60CrMnBA51B60SUP11A60CrB3///55XΓP
60CrMnMoA4161SUP13A60CrMo3360CrMo4705A60//
50CrVA6150SUP10A51CrV450CrV4735A5151CrV450CrΦA

Quality Standard


GB/T 1222 Spring Steels
JIS G 4801 Spring Steels
EN 10089 Hot rolled steels for quenched and tempered springs


Chemical Composition(%)


Steel GradeCMnSiPSCrNiBCuMoV
65#0.62-0.700.50-0.800.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
70#0.62-0.750.50-0.800.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
85#0.82-0.900.50-0.800.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
65Mn0.62-0.700.90-1.200.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
60Si2Mn0.56-0.640.70-1.001.50-2.000.035 max0.035 max0.35 max0.25 max/0.25 max//
60Si2CrA0.56-0.640.40-0.701.40-1.800.025 max0.025 max0.70-1.000.25 max/0.25 max//
55CrMnA0.52-0.600.65-0.950.17-0.370.025 max0.025 max0.65-0.950.35 max/0.25 max//
60CrMnBA0.56-0.640.70-1.000.17-0.370.025 max0.025 max0.70-1.000.35 max0.0005-0.00400.25 max//
60CrMnMoA0.56-0.640.70-1.000.17-0.370.025 max0.025 max0.70-0.900.35 max/0.25 max0.25-0.35/
50CrVA0.46-0.540.50-0.800.17-0.370.025 max0.025 max0.80-1.100.35 max/0.25 max/0.10-0.20


Mechanical Properties(Quenched and Tempered Condition)(T=20°C if not differently stated)


Steel GradeTensile Strength Rm (Mpa)Yield Strength Rp0.2 (Mpa)Elongation A5 (%)Area Reduction Ratio C (%)
65#980 min785 min9 min35 min
70#1030 min835 min8 min30 min
85#1130 min980 min6 min30 min
65Mn980 min785 min8 min30 min
60Si2Mn1275 min1180 min5 min25 min
60Si2CrA1765 min1570 min6 min20 min
55CrMnA1225 min1080 min9 min20 min
60CrMnBA1225 min1080 min9 min20 min
50CrVA/td>1275 min1130 min10 min40 min


Heat Treatment


Steel GradeQuenching Temperature (°C) (MediaTempering Temperature (°C)
65#840oil500
70#830oil480
85#820oil480
65Mn830oil540
60Si2Mn870oil480
60Si2CrA870oil420
55CrMnA830-860oil460-510
60CrMnBA830-860oil460-520
50CrVA850oil500


CARBON STEEL PRODUCT DETAILS
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STAINLESS STEEL PRODUCT DETAILS
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ALLOY STEEL PRODUCT DETAILS
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WAREHOUSE
FAQ

Q: How do you control quality?

A : Mill Test Certification is supplied with shipment, Third Party Inspection isavailable.and we also get ISO,SGS,Alibaba Verified.

Q : What are the advantages of your company?

A : We have many professionals,technical personnel, more competitiveprices and best after-dales service than other steel companies.

Q : What extra services do you offer?

A : We can provide you with roll splitting, size cutting, surface treatment(galvanizing, coating and sandblasting) and other services according toyour requirements.

Q: How can l get a quotation?

A : Kindly provide us your details request (item No, style, logo, size, material, surface treatment, quantity etc.) the more detailed the better, leave us an inquiry or email to us and we will response promptly!

Q : How to get a free sample?

A : We can provide our existing similar samples for free to check the style and quality! For sample with your own logo or design, mold fee will be charged base on specification.

Q : What's the payment method?

A : It is very convenient And TT,LC...are all available.

Q : What's the process of order?

A : Send us Inquiry →get quotation → payment done →open mold and make samples →deliver you samples or send you pictures of samples for approval → mass production.

Q : When can l expect the customized product to be finished?

A : Sample:7-10 working days (Standard).Bulk order: 10-25 working days (Standard). If you have any other questions, please feel free to contact us!

 

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