Cold Drawn Alloy Round Steel Grade S275jr for Fasteners

Product Details
Customization: Available
Type: Alloy Steel Bar
Standard: AISI, ASTM, DIN, JIS, GB, BS
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Registered Capital
20190000 RMB
Plant Area
501~1000 square meters
  • Cold Drawn Alloy Round Steel Grade S275jr for Fasteners
  • Cold Drawn Alloy Round Steel Grade S275jr for Fasteners
  • Cold Drawn Alloy Round Steel Grade S275jr for Fasteners
  • Cold Drawn Alloy Round Steel Grade S275jr for Fasteners
  • Cold Drawn Alloy Round Steel Grade S275jr for Fasteners
  • Cold Drawn Alloy Round Steel Grade S275jr for Fasteners
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Basic Info.

Model NO.
steel bar
Technique
Cold Drawn
Shape
Bar/Square/Hexagonal/Figured
Surface Treatment
Brihgt/Nigrities/Chromeplate/Galvanization
Special Use
Free Cutting Steel, Hight Strength Bolts
Application
Bolts
Concentricity
Customized
Straightness
0.08mm/400mm
Delivery Time
15-30days
Diameter Tolerance
0.03mm-0.1mm
Alloy Steel Bar
Cold Drawn Steel Bar
Transport Package
Exporting Packing or According to Your Special Re
Specification
dia: 4mm-150mm
Trademark
DaJin
Origin
Shandong
Production Capacity
3000tons/Month

Product Description

STM A193 GR.B7 B16 B7M cold drawn steel bar QT steel bar
1.ASTM A193 GR.B7 QT cold drawn steel bar

QT steel bar Used in the manufacture of shafts, connecting rods, gears and bolts
Harden ability is better, High overall mechanical properties, good low temperature impact toughness, low notch sensitivity, with temper brittleness

2.Process for Steel round bar
Blast Furnance→ Molten Iron Pretreatment→Converter→LF→VD/RH→ContinuousCasting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→Finish Product
EAF→LF→VD/RH→ Continuous Casting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→ Finish Product.


3..ASTM A193 Gr.B7  Cold drawn steel bar Typical applications

Fastners,high strength bolts&nuts,thread rods

4.ASTM A193 Gr.B7 cold drawn steel bar main type and avaliable sizes
 

Round bars 5mm-130mm
Suqare bar 6*6mm-100*100mm
Flat bars 3mm*20mm-50mm*100mm
Hex bars 6mm-100mm
Bar Finsihe Peeled, Cold Drawn, TurnedTurned & Polished, Centreless Ground
Cold Drawn Alloy Round Steel Grade S275jr for FastenersCold Drawn Alloy Round Steel Grade S275jr for Fasteners
5.ASTM A193 Gr.B7   Cold drawn steel bar size tolerance

h9,h10,h11 or other tolerance according to client's requirement

6.ASTM A193 Gr.B7  Cold drawn steel bar chemical composition(%)
 
Grade C Cr Si S Mn P Mo
ASTM A193 Gr.B7 0.37 - 0.49 0.80 - 1.10 0.15 - 0.35 0.04 max 0.65 - 1.10 0.035 0.15 - 0.25


7.ASTM A193 Gr.B7 Alternative grade in different standard
 
GB 42CrMo
ASTM 4140
JIS SCM440
DIN 1.7225
 
8.ASTM A193 Gr.B7 Typical Mechanical Properties
 
Grade Tensile Strength
Mpa
Yield Strength
Mpa
Elongation
%
Reduction
%
-40ºCAkv2/J Hardness
10.9 ≥1040 ≥940 ≥9 ≥48 ≥50 HRC32-39
8.8 ≥830 ≥660 ≥12 ≥52 ≥70 HRC23-34


9.Straightness: 1mm/m(max)
10. Steel bar Packing:
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 3 min places of the bar length and tagged properly.
*For further processing products such as cold drawn/peeled or heat treated goods, plastics bag wrapped or pallet loading is available according to customer's demands.
Cold Drawn Alloy Round Steel Grade S275jr for FastenersCold Drawn Alloy Round Steel Grade S275jr for Fasteners
11.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed of new material

12.Payment term:TT or LC

13.Free sample:Yes

14.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test

15.Our cold drawn factory equipments
We adopt advanced production technology and first-class processing equipments, such as heat treatment furnace, straightening machine, centerless grinding machine, polishing machine, as well as lathing and milling machine etc.

15.Our steel bar mill's certificates

ISO901&ISO.TS16949,ISO4001,OHSAS18001
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel;
ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;JIS MARK,KS MARK.
Cold Drawn Alloy Round Steel Grade S275jr for FastenersCold Drawn Alloy Round Steel Grade S275jr for FastenersCold Drawn Alloy Round Steel Grade S275jr for FastenersCold Drawn Alloy Round Steel Grade S275jr for FastenersCold Drawn Alloy Round Steel Grade S275jr for Fasteners
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Other products of the company:

 

Alloy Steel

5140,5115,5120,5130,5145,4118,4130,4135,6150,5115,4142,4130,4118,6150,4140,4720,4320

,E9310,8620,4340,1547,S42NL

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,T7,Cr06,SUJ2,t5,t3,t4,M2

Bearing Steel

GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50,8620h

Spring Steel

9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150,

SUP10,51CrV4,1.8159,SUP10,

Stainless Steel

317,sus321,1.405,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028,

434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057,201,202,301,304,305.316

 carbon steel            1008,1010,1020,0.35,1040,1045,1050,1055,1060,1065,1070
 

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