AISI 1010 / S10c Carbon Steel Tube – Mechanical Tubing – Seamless Steel Pipe
1020 / S20C Hydraulic Cylinder Tube , High Precision Skiving Pipe – Honed Steel Tubing
27SiMn seamless cold drawn steel tube, with black annealed out surface
4145H Modified Alloy Steel Round Bar, Hot Rolled Steel Bar
AISI 4130 75K P+X Alloy Steel Bar
Categories:Steel tubes
Model No.:27SiMn
Size range:
Cold drawn: OD6-2426mm. WT:1-40mm
Hot finished:32-1200mm;WT:3.5-200mm.
27SiMn seamless cold drawn steel tube, with black annealed out surface
OVERVIEW
The material 27SiMn has high hardenability. 27SiMn teel’s toughness decreases not much as heat treatment, but material 27SiMn has very high strength and abrasion resistance, especially when water quench, grade 27SiMn still has high toughness. However 27SiMn steel is sensitivity to the white dots very much and 27SiMn is sensitivity to temper brittleness tendency and overheating when heat treatment.
27SiMn is mainly used under tempering condition and used in the manufacture of high toughness and wear resistance of hot stamping.27SiMn can also used under fire or hot rolling using supply condition, such as the tractor caterpillar pin, etc.
APPERANCE
Tube shall have a smooth internal and external surface consistent with cold working process, tube inner surface should be free from rust, scratches and other surface irregularities.
USAGE SCOPE
Honed tube for hydraulic cylinder, swivel crane, injection machine and construction machine application
STANDARD SPECIFICATIONS
Process | Seamless, cold drawn, honing tube |
Shape | Round |
Size Range | Cold Drawn: 6-426mm OD; 1-40mm WT Hot Finished: 32-1200mm OD; 3.5-200mm WT |
Thickness | Upto 200mm |
Pipe End | Plain ends with square cuts, free of burrs, bevelled ends with plastic caps proteced. |
Surface | Bare, varnished,oiled, or polised as request. |
Length | 15 Mtr max Cut to Length available |
Heat Treatment | Spheroidizing / Full Annealing / Process Annealing / Isothermal Annealing / Normalizing / Quenching / Martempering (Marquenching) / Quench And Tempering / Austempering |
Application | Oil & Gas / Hydro Carbon Process / Automotive / Boiler, Heat Exchanger / Plumbing, HVAC & Firefighting / Structural / General Engineering / Railways / Sewage & Waterwell |
Quality Inspection | Third Party inspection is acceptable (SGS, BV etc.) |
TOLERANCE FOR SEAMLESS TUBING
I.D tolerance (mm) | O.D tolerance (mm) | Straightness (mm) |
H9-H12 | -/+0.5% | 0.20-0.80 |
CHEMICAL COMPOSITION
Grade | C | Si | Mn | P | S |
27SiMn | 0.24-0.32 | 1.1-1.40 | 1.10-1.40 | 0.035 max | 0.035 max |
DELIVERY CONDITIONS
+AR | BKS | GBK | NBK | Q+T |
As rolled | Stress relieved | Annealed | Normalized | Quenched+tempered |
Hot rolled | +SR | +A | +N | Q+T |
Delivery condition | Cold finished (hard) (BK) | Cold drawn and stress-relieved (BK+S) | |||
Steel Grade | Tensile Strength (Mpa) | Elongation (%) | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
27SiMn | ≥800 | ≥5 | ≥760 | ≥610 | ≥10 |
Our Services
What we can offer?
-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.
-Machining and heat treatment are available.
-Also, we advise you in choosing the right materials.
Quality Assurance
Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT;
(5) eddy current flaw detection-ET
Package
In standard export packing and seaworthy material with hexagon shape bundle, covered with tarpaulin, in containers or in bulk, or upon request
If you want to know more or have any questions about our products, please feel free to contact us by phone or email.