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Quick Details
Specifications
ASTM A519 Varnish Hydraulic Cylinder Piping / Cold Drawn Precision Steel Tubes
Quick Detail:
Standards: ASTM A519 / DIN 2391
Material Grade: A519 SAE1026 / A519 SAE1518 / 16Mn / 25Mn / 20# / 45# / 27SiMn / ST45 / ST52 / E355
Size(mm):
ID :45mm – 500mm
WT:3mm – 50mm
Description:
Standards: ASTM A519 / DIN 2391
(GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519)
Grade: 16Mn,CK45, STKM13C, SAE1020, SAE1045
Inside Dimensions: 45mm ~ 500mm
Wall Thickness: 3mm ~ 50mm
Length: max 24000mm
Application: Hydraulic Cylinder
Packing: Beveled/black painting/
plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and
Test: Chemical Composition Inspection, Mechanical Properties Test(Tensile
Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness,
Impact Test),Surface and Dimension Test,Nodestructive Test, Hydrostatic
Test.
Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot
Blasting.
Mark: As per customers' requested.
Delivery Condition:Annealed, Normalized, Normalized and Tempered.
Processing Range And Precision:
Cold Drawn Tubes: ID:45mm-630mm Length:14,000mm Straightness:0.3-1.0 Precision:H8-H10 Roughness:Ra0.8-Ra1.6 | Honing Tubes: ID:25mm-500mm Length:10,000mm Straightness:0.3 Precision:H7-H8 Roughness:Ra0.2-Ra0.8 |
ID Tolerance of Precision Honed Tubes:
SIZE of I.D | I.D.Tolerance | Tolerance of wall thickness | ||
H8 | H9 | H10 | ||
30 | +0.0330 | +0.0520 | +0.0840 | <120mm(O.D) ±5% ≥120mm(D.D) to 210mm ±7.5% >210mm ±10% |
>30-50 | +0.0390 | +0.0620 | +0.1000 | |
>50-80 | +0.0460 | +0.0740 | +0.1200 | |
>80-120 | +0.0540 | +0.0870 | +0.1400 | |
>120-180 | +0.0630 | +0.1000 | +0.1600 | |
>180-250 | +0.0720 | +0.1150 | +0.185 | |
>250-315 | +0.0810 | +0.1300 | +0.2100 | |
>315-400 | +0.0890 | +0.1400 | +0.2300 | |
Mechanical Propety:
Material: 20# 45#,16Mn St45, St52, 25Mn,27SiMn, SAE1026.SAE1518 etc.
STANDARD: GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519
Delivery condition | cold finished(hard)(BK) | cold drawn and stress relieved(BK+S) | |||
STEEL GRADE | Rm MPa | Elongation (%) | Rm MPa | ReH MPa | Elongation (%) |
20# | ≥550 | ≥ 8 | ≥ 520 | ≥ 375 | ≥ 15 |
45# | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 10 |
16Mn | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 14 |
25Mn | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 510 | ≥ 15 |
27SIMn | ≥ 800 | ≥ 5 | ≥ 760 | ≥ 610 | ≥ 10 |
ST45 | ≥ 550 | ≥ 5 | ≥ 520 | ≥ 375 | ≥ 15 |
E355(ST52) | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 14 |
SAE1026 | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 510 | ≥ 15 |