Welded Seamless Metal Tubes

 

Welded ASTM A178 SA178 Seamless Metal Tubes with API Certificated for Superheaters

 

 

Quick Detail:

 

Standards: ASTM A178 (ASME SA178)

Grade: Grade A Grade C Grade D

Size: (mm)

OD: 15.88mm to 114.3mm;

WT: 1.5mm to 6.0 mm;

Length: 6 m ~ 25m

 

 

Description:

 

Product name: ASTM A178/A178M

Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes

Standard executived: ASTM  A178 A178M, ASTM DIN JIS or GB standard.

Grade: Grade A, Grade C, Grade D.

Outside diameter:15.88mm~114.3mm

Wall Thickness:1.5mm~6.0mm

Length:6m-24m,also can be manufactured according to customers' requirements

Type: Electric-Resistance-Welded Carbon Steel (ERW)

Ends:Plain ends or bevel ends 

Delivery Conditions: BK,BKS,BKW,NBK,GBK( As drawn, quenched and tempered, normalized, annealed, stress-relieved)As different requirements,It including pickling,etc. AS per Standard.

Coating for protection:black painting,anti-rust oiled or varnish,also can be required according to customers' requirements

 

 

Factory test and other terms:

 

1.Hydrostatic or Nondestructive Electric Test

2.Heat Treatment: according to Standard
3.Surface Condition:According to Standard.
4.Grain Size:According to standard
5.Sampling:flattening,flaring,grain size,Marking

6.we provide bevel end,plastic cap, varnish coating, oiled or black painted to prevent rustand other packing 

service.

 

 

Applications:

 

ASTM A178 tubes are a kind of frequently-used tubes in our life,they are mainly used in manufacturing heating pipelines,containers,coal-saving devices,superheaters,arch tube,reheater tube,airway tube etc.

 

 

Chemical Requirements:

 

	Composition,%
Element	Grade A, Low-Carbon Steel	Grade C, Medium-Carbon Steel	Grade D Carbon-Manganese Steel
Carbon Managanese Phosphorus,max Sulfur,max Silicon	0.06-0.18 0.27-0.63 0.035 0.035 …	0.35max 0.08max 0.035 0.035 …	0.27max 1.00-1.50 0.030 0.015 0.01 min

 

 

Mechanical Property:

 

Grade C & Grade D tubes shall conform to the requirements -tensile properties prescribed below:

 

TensileRequirements
	GradeC	GradeD
Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,% For longitudinal strip tests a deduction for Each1⁄32-in[0.8mm]decreaseinwallthicknessbelow5⁄16in.[8mm] From the basic minimum elongation of the following percentage points shall be made	60[415] 37[255] 30 1.50A	70[485] 40[275] 30 1.50A

 

Grade A
Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,%	47[325] 26[180] 35

 

 

Outside diameter and Wall ThicknessTolerance:

 

Outside Diameter tol		Wall thickness tol
OD < 50	±0.05mm	S < 4mm	±12.5%
OD > 50	±1%	4--20mm	+15/-12.5%
		S≧20mm	±12.5%

 

Competitive Advantage:

 

Huacheng Pipe Making Company is one of the largest seamless steel pipe manufacturers in China.We’ve passed API 5L,API 5CT, PED, BV, TUV certification and ISO quality system certification.With good quality and competitive price, we believe we could be your reliable supplier.

 

Factroy Pictures:

 

Pipe & Tube Processing

Factory Equipments:

 

Production Line:

Quality Control:

 

 

Steel Pipe & Tube Application:

Package:

Export Standard / Wooden Box

Main Certificates:

PED ISO BV TUV etc.

Main Customers: