STK400/STK500 Scaffolding Pipe

OD: 48.6mm
Thickness: 2.4mm
Length: 1m, 2m, 3m, 4m, 5m, 6m
Surface: Pre-galvanized, Hot Dipped Galvanized
JIS / KS Type, can be riveted

Introduction

Production Process:

Pre-galvanized Tube: Black Steel Coil Clean--- Coil Galvanization --- Shaping ---High Frequency Welding --- Cooling --- Trimming ---Marking --- Package

Hot Dipped Galvanized Tube： Black Steel Coil ---High Frequency Welding --- Pickling --- Galvanization ---Marking ---Package

Specifications and Parameters:

Pipe Tape	Welded Steel Pipe, Pre-Galvanized Scaffolding Tube
Standard	JIS Z3444
OD	φ48.6mm
Thickness	2.4mm
Weight	2.73kg/m
Length	1m, 2m, 3m, 4m, 5m, 6m
Marking	JIS Z3444 48.6*2.4mm xxx (company logo)
Material	STK400 (Q235), STK500 (Q355)
Package	100pcs/bundle, 50pcs/bundle
Certificate	SGS, TUV, Third Party Inspection accepted
Production	2000 tons monthly
Delivery	10~15 days

Chemical Compositions

	Chemical Compositions (%)
Grade	C	Si	Mn	P	S
Q235	≤0.20	...	≤1.40	≤0.04	≤0.045
Q355	≤0.22	≤0.55	≤1.60	≤0.035	≤0.035

Mechanical Properties

	Mechanical Properties
Grade	Tensilestrength (Rm) (MPa)	Yield strength (ReH) (MPa)	Elongation after fracture (A) Lo =5.65 So (%)
Q235	340~520	≥235	≥24
Q355	470~630	≥355	≥20