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Spring steel strip
Steel grade
65Mn,1065,SAE1055,1045,CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1,50CrV4, 51CrV4, 60Si2Mn, etc
Thickness 0.08-4.0mm
Width 3-400mm
Hardness <200HV, 200-300HV, 300-550HV
Edge slit edge; both rounded; one side round, one side slit; square etc
Surface polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Tolerance thickness +/-0.01mm max; width +/-0.05mm max
Physical propety Tensile strength: 450-1850N/mm2

Product name:Roller Shutter Spring Heat Treatment 65Mn Carbon Steel Strip
Thickness:0.27-2.5mm
Width:30-300mm
Usage:Making Tools
Hardness:43--45
Coil ID:300mm
Weight:100kg/coil
Technique:Hot Rolled
Surface Treatment:Polished
Steel Grade:50# or 65Mn
Thickness:1.2-2.0mm
Standard:AiSi
Certificate:API
Certificate:ce
Certificate:JIS
Certificate:ISO9001
Tolerance:1%
Processing Service:Welding
Processing Service:Punching
Processing Service:Cutting
Processing Service:Bending
Processing Service:Decoiling
Delivery Time:15-21 days
Place of Origin:CN;SHN
Application:Making Tools
Width:30--300mm
Grade:50# 65Mn

Type:Steel Coil, Hot-Galvanized Steel Sheet, Color Coated Steel Sheet, C
Surface Treatment:BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D
Package:Standard Sea Worthy Package or as customer's requirement
Keyword:cold rolled coil
Payment:D/P,L/C,TT,D/P,D/A
Usage:Architectural decoration, luxury doors, elevators decorating,ect
Grade:200 400 series
MOQ:25 Tons
Special Use:Silicon Steel
Surface structure:zero spangle / minimized spangle / regular spangle/ big spang
Type:Steel Coil
Standard:AiSi
Width:1251-1500mm
Certificate:API
Certificate:ce
Certificate:SNI
Certificate:SASO
Certificate:SABS
Surface Treatment:Normal Oiled
Hardness:Full Hard
Tolerance:�?�±1%
Processing Service:Welding
Processing Service:Punching
Processing Service:Cutting
Processing Service:Bending
Processing Service:Decoiling
Processing Service:Annealed
Processing Service:Black Annealed
Skin Pass:Yes
Oiled or Non-oiled:Slightly Oiled
Alloy Or Not:Non-Alloy
Delivery Time:within 7 days
Place of Origin:CN;JIA
Application:High-strength Steel Plate
Thickness:0.5mm~3.0mm
Length:1000-12000(requirment)
Grade:steel

Thickness Tolerance+/-0.01mm
Width Tolerance+/-0.05mm
Surface nature, blue, yellow, white, polished, white polished, bright, black
Coils weight as your request
MOQ 1 Ton
Monthly capacity 500 Tons
Package Standard Seaworthy Package
Payment L/C, Western Union, D/P, D/A, T/T, Trade assurance
Application
band saw blade, rolling shutter spring, bricklayer trowel, plaster trowel, putty knives, scraper, power trowel blade, lawn trowel
blade, shoe insole, flat spring, toy spring, spring baskets etc.

Thickness Tolerance+/-0.01mm
Width Tolerance +/-0.05mm
Surface nature, blue, yellow, white, polished, white polished, bright, black
Coils weight as your request
MOQ 1 Ton
Monthly capacity 500 Tons
Package Standard Seaworthy Package
Payment L/C, Western Union, D/P, D/A, T/T, Trade assurance
Application
band saw blade, rolling shutter spring, bricklayer trowel, plaster trowel, putty knives, scraper, power trowel blade, lawn trowel
blade, shoe insole, flat spring, toy spring, spring baskets etc.

Thickness Tolerance +/-0.01mm
Width Tolerance +/-0.05mm
Surface nature, blue, yellow, white, polished, white polished, bright, black
Coils weight as your request
MOQ 1 Ton
Monthly capacity 500 Tons
Package Standard Seaworthy Package
Payment L/C, Western Union, D/P, D/A, T/T, Trade assurance
Application
band saw blade, rolling shutter spring, bricklayer trowel, plaster trowel, putty knives, scraper, power trowel blade, lawn trowel
blade, shoe insole, flat spring, toy spring, spring baskets etc.

Thickness Tolerance +/-0.01mm
Width Tolerance +/-0.05mm
Surface nature, blue, yellow, white, polished, white polished, bright, black
Coils weight as your request
MOQ 1 Ton
Monthly capacity 500 Tons
Package Standard Seaworthy Package
Payment L/C, Western Union, D/P, D/A, T/T, Trade assurance
Application
band saw blade, rolling shutter spring, bricklayer trowel, plaster trowel, putty knives, scraper, power trowel blade, lawn trowel
blade, shoe insole, flat spring, toy spring, spring baskets etc.

Thickness Tolerance +/-0.01mm
Width Tolerance +/-0.05mm
Surface nature, blue, yellow, white, polished, white polished, bright, black
Coils weight as your request
MOQ 1 Ton
Monthly capacity 500 Tons
Package Standard Seaworthy Package
Payment L/C, Western Union, D/P, D/A, T/T, Trade assurance
Application
band saw blade, rolling shutter spring, bricklayer trowel, plaster trowel, putty knives, scraper, power trowel blade, lawn trowel
blade, shoe insole, flat spring, toy spring, spring baskets etc.

1.The Mild steel grade are:DCO01,SPCC,Q235C,Q235D,Q235E;Q345B,Q345C,Q345E,Q345E.

2.Shipbuilding steel plate.Mainly used in ship build.
The grades are:A32,AH32,A36,AH36,DH36,AH36,D32,DH32 ETC.

3.Carbon structural and high strength steel plate.Mainly used in bridges,power station equipment,lifting machinery,mining macinery
and other large welding structural parts.Q460C/D/E,Q235B/C/D/E,Q609C/D/E

4.Alloy Steel Plat.Mainly used in Machinery,structure,tool,etc.
40Cr,50Mn,65Mn,15CrMo,35CrMo,42CrMo etc.

1.The Mild steel grade are:DCO01,SPCC,Q235C,Q235D,Q235E;Q345B,Q345C,Q345E,Q345E.

2.Shipbuilding steel plate.Mainly used in ship build.
The grades are:A32,AH32,A36,AH36,DH36,AH36,D32,DH32 ETC.

3.Carbon structural and high strength steel plate.Mainly used in bridges,power station equipment,lifting machinery,mining macinery
and other large welding structural parts.Q460C/D/E,Q235B/C/D/E,Q609C/D/E

4.Alloy Steel Plat.Mainly used in Machinery,structure,tool,etc.
40Cr,50Mn,65Mn,15CrMo,35CrMo,42CrMo etc.

1.The Mild steel grade are:DCO01,SPCC,Q235C,Q235D,Q235E;Q345B,Q345C,Q345E,Q345E.

2.Shipbuilding steel plate.Mainly used in ship build.
The grades are:A32,AH32,A36,AH36,DH36,AH36,D32,DH32 ETC.

3.Carbon structural and high strength steel plate.Mainly used in bridges,power station equipment,lifting machinery,mining macinery
and other large welding structural parts.Q460C/D/E,Q235B/C/D/E,Q609C/D/E

4.Alloy Steel Plat.Mainly used in Machinery,structure,tool,etc.
40Cr,50Mn,65Mn,15CrMo,35CrMo,42CrMo etc.

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder

Item Hot Dipped Galvanized Round Steel Pipe/GI Pipe/Galvanised Tube
OD 20~405mm in theory
Thickness 1.2~15.7mm
Length Any Length Below 16 Meter
Standard GB,ASTM,BS,EN,JIS
Material Chinese Grade, Q195, Q215 Q235, Q345
ASTM, Grade B,Grade C,Grade D,Grade 50
EN, S185,S235JR,S235JO,E335,S355JR,S355J2
JIS, SS330,SS400,SPFC590
Application Used For Water, Gas, Stream, Combustible Fluids And Other Liquid Delivery
Ends
Plain, Beveled, Thread With Couplings Or Sockets;
Plastic Caps And Steel Rings Can Be Provided If Possible
Surface Bared, Galvanized, Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment
Technique Hot Rolled Or Cold Rolled ERW
Package Covered With Tarpaulin, Containers Or In Bulk

Item Hot Dipped Galvanized Round Steel Pipe/GI Pipe/Galvanised Tube
OD 20~405mm in theory
Thickness 1.2~15.7mm
Length Any Length Below 16 Meter
Standard GB,ASTM,BS,EN,JIS
Material Chinese Grade, Q195, Q215 Q235, Q345
ASTM, Grade B,Grade C,Grade D,Grade 50
EN, S185,S235JR,S235JO,E335,S355JR,S355J2
JIS, SS330,SS400,SPFC590
Application Used For Water, Gas, Stream, Combustible Fluids And Other Liquid Delivery
Ends
Plain, Beveled, Thread With Couplings Or Sockets;
Plastic Caps And Steel Rings Can Be Provided If Possible
Surface Bared, Galvanized, Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment
Technique Hot Rolled Or Cold Rolled ERW
Package Covered With Tarpaulin, Containers Or In Bulk