CS 45 Welded Pipe

QS Pipe: Quanzhou CS 45 Welded Pipe

CS 45 medium carbon welded pipe, 1/2 to 36 inch and 0.5 to 20 m lengths, SCH40 wall for conveying lines and structural pipe duty.

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One-Minute Overview

CS 45 welded pipe in 1/2 to 36 inch, lengths from 0.5 to 20 m, SCH40 wall.
Medium carbon 45# steel for strength in conveying and structural pipe runs.
Plain ends with a black surface and caps protecting both ends in transit.
Welded seam checked and lengths cut to fit the drawing, not the other way round.

CS 45 welded pipe brings a medium carbon steel to the welded pipe range. The 45# grade carries more carbon than ordinary structural pipe, which means more strength and hardness in the finished run — useful where the pipe conveys material under load, supports itself across a span, or simply needs to survive rough handling on site. The range is broad: 1/2 to 36 inch, SCH40 wall, lengths from 0.5 to 20 m, so one grade covers everything from small bypasses to main conveying lines.

Name: CS 45 Welded Pipe
Type: Welded
Size: 1/2 to 36 Inch
Material: CS 45#
Standard: ASTM
Thickness: SCH40
Length: 0.5 to 20 m
End: Plain
Surface: Black

The extra carbon is a double-edged gift, and welding is where it shows. Medium carbon steel welds fine with the right procedure — control heat input, use low hydrogen consumables and preheat when the wall and ambient temperature ask for it — but it is less forgiving than low carbon grades if the joint is rushed. The weld seam still goes through non-destructive examination and hydrostatic testing before dispatch, so what reaches the site has been checked. On a run that mixes sizes, keeping one material across the order simplifies procedure qualification and spare stock at the same time.

For handling, treat the range as one family: caps on until fit-up, bundles level and marked, cut lengths logged against the spool drawing. Medium carbon pipe takes a scratch just as badly as anything else, so protect the black surface where slings bear and store clear of standing water. Size and wall thickness are confirmed per inquiry, and a detailed specification sheet is available on request.

FAQ

Q1. Why choose 45# over a lower carbon steel pipe?

Because the job asks for strength. The higher carbon raises hardness and mechanical values, which suits conveying lines, support duty and anywhere the pipe takes knocks. If the service is plain fluid transport at modest pressure, a lower carbon grade is cheaper and easier to weld — pick 45# when the load or the handling demands it.

Q2. Does medium carbon pipe need special welding?

Not special, just disciplined. Preheat heavy sections, keep interpass temperature controlled, use low hydrogen consumables and let the joint cool at a sane rate. Rush a weld on medium carbon steel and you invite cracking; follow the procedure and it behaves like any other pipe.

Q3. What does the black surface actually protect against?

It protects the pipe from rust while it travels, waits and gets staged — nothing more. For permanent service outdoors or underground the pipe takes a coating system sized to the environment. Think of the black finish as transit insurance, not corrosion engineering.

Q4. How long will production take for CS 45 pipe?

Standard sizes are typically ready within 30 days, and in-stock items ship immediately. Larger or custom orders get a confirmed date per order, because the schedule depends on quantity, material, the bolt pattern you specify, and how busy production is at the moment you order.

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