JIS G 3473 HYDRAULIC CYLINDER TUBE CARBON STEEL TUBES FOR CYLINDER BARRELS
Specifications:
Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling
Ends: BE, ends caps
Marking: as per requirement
Size:(mm) As per standard or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length
Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement
CHEMICAL COMPOSITION (%):
Grade | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Nb or V |
STC 370 | 0.25 | 0.35 | 0.30-0.90 | 0.040 | 0.040 | - |
STC 440 | 0.25 | 0.35 | 0.30-0.90 | 0.040 | 0.040 | - |
STC 510A | 0.25 | 0.35 | 0.30-0.90 | 0.040 | 0.040 | - |
STC 510B | 0.18 | 0.55 | 1.50 | 0.040 | 0.040 | - |
STC 540 | 0.25 | 0.55 | 1.60 | 0.040 | 0.040 | 0.15max |
STC 590A | 0.25 | 0.35 | 0.30-0.90 | 0.040 | 0.040 | - |
STC 590B | 0.25 | 0.55 | 1.50 | 0.040 | 0.040 | - |
MECHNICAL PROPERTIES (Minimum Values) :
Grade | Tensile Strength (MPa) | Yield Strength(MPa) | Elongation(%) |
STC 370 | ≥370 | ≥215 | ≥30 |
STC 440 | ≥440 | ≥305 | ≥10 |
STC 510A | ≥510 | ≥380 | ≥10 |
STC 510B | ≥510 | ≥380 | ≥15 |
STC 540 | ≥540 | ≥390 | ≥20 |
STC 590A | ≥590 | ≥490 | ≥10 |
STC 590B | ≥590 | ≥490 | ≥15 |
INSPECTION AND TEST:
CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening, hardness, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.
Description:
JIS G 3473 CARBON STEEL TUBES FOR CYLINDER BARRELS. This Japanese Industrial Standard specifies the carbon steel tubes, the inner surface of which is machined or honed to be used for manufacturing the cylinder barrels of piston-type pneumatic or hydraulic cylinders. This standard covers the tubes of inside diameters in the range 32.0 mm to 200.0 mm.
Top quality products
Applications:
Widely used in hydraulic and penumatic power systems, petro-chemical and metallugical fields, CNG cylinder products, etc.
Competitive Advantage:
Always put quality on first consideration makes us keep our qulity stable and good. Always put customer’s benefit before ours makes our good service and gain us good reputation.
Advanced equipments. Sincere , truth and careful attitude on communication and production.
